--- title: "Issue 13" canonical: "https://anchor.is/the-hysteresis/issue/13" publication: "The Hysteresis" publisher: "The Hysteresis" language: "en-US" guide: "https://anchor.is/the-hysteresis/llms.txt" permalink: "https://anchor.is/the-hysteresis/issue/13" issue: 13 description: "We kept coming back to two price assessors agreeing a Chinese storage cell costs CNY 0.365 per watt-hour and disagreeing on whether that number rose or held flat. China's consumption tax took effect September 1. Neither assessment separates the tax from the underlying move. That problem showed up everywhere this week. All three Korean battery makers posted better Q2 numbers for unrelated reasons. A US defense cost threshold can shift on commodity prices without the product changing. The readings look stable until you ask what they actually measured." authors: ["Elise Huan-Cartwright","Ronan Adike"] published: 2026-09-07 updated: 2026-09-04 articles: 94 --- # The Hysteresis > The Hysteresis exists to give a small cross-functional team — strategy, investment, and procurement — a shared weekly instrument for reading the battery supply chain earlier than consensus. Success means the team consistently identifies inflection points in cell pricing, supplier health, and policy enforcement weeks or months before they surface in earnings calls, annual surveys, or trade press. The commercial mechanism is internal-first: the publication proves itself as a decision tool inside the organization, then extends to paid subscribers and a practitioner community as upside. Revenue follows utility — if the team makes better-timed procurement calls and competitive assessments because of what they read here, the publication earned its place. [Read on the website]() ## Issue 13 We kept coming back to two price assessors agreeing a Chinese storage cell costs CNY 0.365 per watt-hour and disagreeing on whether that number rose or held flat. China's consumption tax took effect September 1. Neither assessment separates the tax from the underlying move. That problem showed up everywhere this week. All three Korean battery makers posted better Q2 numbers for unrelated reasons. A US defense cost threshold can shift on commodity prices without the product changing. The readings look stable until you ask what they actually measured. ### [Signal]() The numbers, their velocity, and what moves next - **Same Level, Opposite Direction on BESS Cells** — [Source]() — Published 2026-09-04 InfoLink and SMM both print CNY 0.365/Wh for large-format LFP ESS cells. InfoLink shows +0.7% WoW for a second week; SMM shows 0%. China's 2% battery consumption tax took effect September 1. Neither assessor clarifies whether the printed level is pre- or post-tax. Conditionally not comparable to prior weeks. - **China EV Cells Flat Across All Formats** — [Source]() — Published 2026-09-04 SMM September 4: 100 Ah prismatic LFP at $0.0528/Wh, 174 Ah at $0.0531/Wh, 8-series NMC at $0.0950/Wh. All 0% WoW. The firming InfoLink reports in BESS cells has not crossed into EV. Flat, comparable. - **Lithium Carbonate Rose Then Reversed Within Week** — [Source]() — Published 2026-09-04 InfoLink Tuesday: CNY 152,000/MT, +1.7% WoW. SMM Friday: CNY 152,000/MT, down 2.56% day-over-day. LC2701 futures pulled back from CNY 162,900 toward CNY 150,000. SMM projects September supply up ~11% MoM as maintenance ends. The two prints captured different legs of one intra-week move. - **China BESS System Prices Flat Since April** — [Source]() — Published 2026-09-04 InfoLink's 2-hour DC-side liquid-cooled system: CNY 0.49/Wh average, flat WoW and unchanged since the post-April plateau. Cell-layer movement has not passed through PCS, BMS, thermal, and balance-of-system costs. Flat, comparable. - **Fastmarkets CIF CJK Spread Breaks on Methodology** — [Source]() — Published 2026-09-04 Fastmarkets changed its battery-grade carbonate CIF CJK specification September 1: minimum lot raised to 18 tonnes, payment limited to LC-at-sight, big-bag shelf life capped at nine months. No current free public print located. The SMM-to-Fastmarkets spread cannot be calculated this week. Series break. - **China EV Pack Series Ended August 28** — [Source]() — Published 2026-09-04 SMM's 18.3 kWh and 51.9 kWh prismatic LFP EV-pack series stopped updating August 28 at $0.0820/Wh and $0.0859/Wh. No replacement series located. BNEF's December 2025 benchmark ($99/kWh BEV packs) remains the only calibration anchor, now lagging 9+ months. Series break. - **Illinois Clears 600 MW at Partial Fill** — [Source]() — Published 2026-09-04 Illinois approved 600 MW standalone storage against a 1,038 MW target: 57.8% fill rate. Average winning strike: $110.52/MWh under 20-year Indexed Storage Credit contracts. MISO over-subscribed by 70 MW; ComEd's PJM territory filled only 80 of 588 MW. The strike is a revenue-settlement reference, not hardware $/kWh. Appalachian Power's 800 MW RFP closes September 30; no bids yet public. - **Korean Cell ASP Still Not Publicly Derivable** — [Source]() — Published 2026-09-04 LGES, Samsung SDI, and SK On reported Q2 battery-segment improvement, but revenue gains mix volume, product shifts, AMPC credits, tariff refunds, and one-time compensation. None published a standalone cell ASP or enough application-level volume to back one out. Not observable. - **Defense Cylindrical Cell Price Still Not Observable** — [Source]() — Published 2026-09-04 DIBC's BES-26-01 solicitation for domestic 18650/21700 production remains labeled "Closed," with no award announced. No cell price, awardee, or committed purchase floor disclosed. SAM.gov and USAspending checks returned no drone, UAV, UUV, or 6T clearing price. Not observable. - [Two Assessors Agree on the Level; They Disagree on Whether It Moved]() — By [Elise Huan-Cartwright]() · Published 2026-09-04 · Format: The Velocity Synthesis InfoLink and SMM both assessed 314 Ah LFP ESS cells at CNY 0.365/Wh this week — InfoLink called it +0.7% WoW, SMM called it flat. The disagreement traces to September 1, when a 2% consumption tax on lithium-ion cells took effect alongside a revised Fastmarkets CIF CJK specification and the termination of SMM's China pack benchmarks. First post-tax cell assessments mix transactions priced under both regimes in proportions neither assessor discloses, so the level is usable and the weekly rate of change is not. Lithium carbonate rose on the weekly print and reversed on the daily. The domestic-versus-export comparison that would isolate tax pass-through is identifiable but not yet executable. - [Fluence's Penalty Exposure Nearly Doubled in One Quarter]() — By [Elise Huan-Cartwright]() · Published 2026-09-04 Fluence's [June 10-Q](https://www.sec.gov/Archives/edgar/data/1868941/000186894126000029/flnc-20260630.htm) (filed August 5) shows battery-cost pressure surfacing in a US-facing integrator's financials even as Chinese cell spot assessments held flat through Q2. Gross margin fell from 14.8% to 5.1% YoY in Q3 FY2026, attributed partly to "increases in battery prices" on certain projects, bundled with deployment overruns and customer liquidated damages. The filing doesn't isolate battery costs from the other two drivers. - **InfoLink: China ESS Cell Prices Edge Up 0.7% as Consumption Tax Hits New Orders** — [Source]() — Published 2026-09-04 First post-September 1 spot assessment; 280/314 Ah LFP cell firming and tax pass-through confirmation in contracts. - **SMM: Copper Foil Tightness Constrains September Cell Production, Prices Hold Firm** — [Source]() — Published 2026-09-04 Sources the supply-side constraint on September ESS cell output growth (+4% MoM) and price firmness. - **SMM: Lithium Carbonate Retreats After Midweek Spike, Ternary Orders Cut Sharply** — [Source]() — Published 2026-09-04 Carbonate futures pullback toward CNY 150K/MT; ternary cathode order cuts on weak EV demand. - **Fastmarkets Tightens CIF CJK Lithium Carbonate Specs Effective September 1** — [Source]() — Published 2026-09-04 New 18-tonne minimum lot and quality standard create a basis break in the seaborne carbonate benchmark. - **Illinois Awards 600 MW Storage at $110.52/MWh Strike, Falls 438 MW Short of Target** — [Source]() — Published 2026-09-04 IPA procurement results: PJM zone cleared only 80 of 588 MW targeted. Stakeholder review forthcoming. - **Fluence 10-Q: Battery Price Increases Hit Margins, $30M Supplier Loan Disclosed** — [Source]() — Published 2026-09-04 SEC filing sourcing gross margin collapse (5.1% vs. 14.8% YoY) attributed to rising battery costs. ### [China]() CATL, BYD, and the market that sets the floor - [The ESS market is 462 or 468 GWh, and grew 71% or 95%]() — By [Elise Huan-Cartwright]() · Published 2026-09-04 InfoLink and SNE Research nearly agree on H1 2026 global ESS cell shipments — [467.84 GWh](https://www.infolink-group.com/energy-article/energy-storage-topic-global-battery-shipment-ranking-1h26) versus [461.3 GWh](https://cnevpost.com/2026/08/04/global-ess-battery-market-share-h1-2026/), a gap under 1.5%. They disagree sharply on how fast the market got here: InfoLink reports 94.76% YoY growth, SNE 71%. The 24 percentage-point spread is almost entirely a base-year artifact. InfoLink's H1 2025 baseline works out to roughly 240 GWh (derived from the reported total and growth rate); SNE's stated H1 2025 figure is 269.7 GWh. Neither publishes its prior-year base alongside the current release. - [EV Consolidation Displaces the Price Fight Into ESS]() — By [Elise Huan-Cartwright]() · Published 2026-09-04 · Format: The Structural Map LFP ESS cells assessed at RMB 0.365/Wh in early September, up RMB 0.002/Wh WoW. The September 1 consumption tax gave the market a natural experiment: cell producers captured less than a third of the 2% levy, and system bids captured nothing. Where a tax lands tells you who can refuse it. H1 2026 filings show ESS revenue growing faster than EV at three of five named producers, with two clear counterexamples, and mid-tier ESS participation is rising as top-ten concentration falls. This piece maps three forces backward from ESS cell price: EV channel concentration, tax incidence, and export channels facing the November export-control and January VAT-rebate clocks. - [RMB 0.365/Wh Is a Bottleneck Price, Not a Floor]() — By [Elise Huan-Cartwright]() · Published 2026-09-04 · Format: Format Transition Toll Chinese 314 Ah ESS cells have held at approximately RMB 0.365/Wh through the summer, against aggregate nameplate capacity that should be pushing prices lower. The firmness is real and it is being misread. Buyers with certified 314 Ah systems cannot substitute 500 Ah+ cells without redesigning modules, requalifying systems and recertifying configurations, which locks their demand to a supply pool far tighter than the aggregate numbers imply. That barrier has an expiry. As large-format yields mature and qualifications complete, the premium should collapse, whether or not total ESS demand keeps rising. - **Trackers Agree on Level, Diverge on Growth** — [Source]() — Published 2026-09-04 InfoLink: 467.84 GWh, +94.8% YoY. SNE Research: 461.3 GWh, +71% YoY. The absolute gap is 7 GWh; the growth-rate gap is 24 percentage points, unexplained by either tracker's public methodology. InfoLink raised its full-year forecast to 1,026 GWh, citing book-to-bill ratios above 1.2. - **Non-China Shipments Held Above Fifty Percent in H1** — [Source]() — Published 2026-09-04 InfoLink places non-China ESS shipments at 53.2% of the H1 global total (248.73 GWh); SNE at 56.1% (258.7 GWh). This extends the structural shift first observed in H2 2025, when non-China share reached 51.3% for the first time on record per InfoLink. - **500 Ah Plus Cells Hit Ten Percent Utility** — [Source]() — Published 2026-09-04 500 Ah+ cells exceeded 10% penetration in utility-scale storage in H1 2026, up from roughly 5% in Q1. InfoLink raised its full-year forecast to 20%. The segment is fragmented across 587, 588, 648, 684, and 702 Ah formats. The 314 Ah cell remains the volume anchor, still actively tendered at GWh scale. - **Cell Price Ticked Up, System Price Held Flat** — [Source]() — Published 2026-09-04 InfoLink and SMM both assessed 314 Ah LFP ESS cells at RMB 0.365/Wh as of September 2-4, up 0.7% WoW. Two-hour DC liquid-cooled systems held at RMB 0.49/Wh. Cell-to-DC system spread: RMB 0.125/Wh, a 34% markup where PCS, thermal management, and BOS costs absorb margin independently of cell pricing. - **ESS Premium Over Power Battery Widens to 3.33pp** — [Source]() — Published 2026-09-04 CATL H1 2026 ESS gross margin: 23.96%, down 1.56 pp YoY. Power-battery gross margin: 20.63%, down 1.78 pp YoY. The ESS-over-power spread widened from 3.11 pp to 3.33 pp because ESS declined less. The filing does not cross-tab segment by geography (HKEX interim report, July 26). - **September 1 Tax Hits Cells, Exempts Complete Systems** — [Source]() — Published 2026-09-04 The 2% consumption tax took effect September 1 on lithium-ion cells and battery clusters. Complete ESS units integrating electrical, thermal, fire protection, and control systems are excluded. EVE Energy issued a July 24 notice seeking to pass the cost upstream; no named buyer acceptance is publicly documented. Sodium-ion and solid-state cells are exempt through December 2028. - **Announcement 58 Suspension Expires November 10, Sixty-Seven Days** — [Source]() — Published 2026-09-04 The MOFCOM suspension of export controls on cells above 300 Wh/kg and key production equipment expires November 10. No public extension announced. InfoLink attributes sustained book-to-bill ratios partly to export front-loading ahead of this deadline. Licensing application volumes and approval rates are not publicly disclosed. - **Export Rebate Cancels January 1, RMB 0.022/Wh Impact** — [Source]() — Published 2026-09-04 The lithium-ion export VAT rebate dropped from 9% to 6% on April 1 and cancels entirely January 1, 2027. At RMB 0.365/Wh, the remaining 6% rebate equals roughly RMB 0.022/Wh, comparable in magnitude to this week's entire cell-price move. For direct manufacturer-exporters, this deadline is more commercially consequential than the consumption tax, which exempts exports. - **Global ESS Cell Shipments Hit 468 GWh in H1 (+95% YoY); InfoLink Raises Full-Year Forecast to 1,026 GWh** — [Source]() — Published 2026-09-04 CR10 concentration hits record low; 500 Ah-plus cells cross 10% of utility-scale volume. - **Non-China ESS Battery Shipments Exceed Domestic for First Time in H1 2026** — [Source]() — Published 2026-09-04 CATL holds 27.1% global share; LGES grows 357% YoY, 86% of volume in North America. - **Copper Foil Tightness Slows September ESS Cell Output Growth to 4%** — [Source]() — Published 2026-09-04 SMM identifies copper foil as the tightest-supplied battery material in 2026; production schedules compress. - **ESS Cell Spot Prices Edge Up to RMB 0.365/Wh; System Prices Hold Flat** — [Source]() — Published 2026-09-04 280/314 Ah cells tick higher on component costs; system integrators absorb the spread for now. - **Battery Consumption Tax Base Remains Unresolved as Regional Authorities Diverge** — [Source]() — Published 2026-09-04 SMM models burden at ~1.4% of system price; taxability of battery clusters still contested across regions. - **China's 2% Lithium-Ion Battery Consumption Tax Takes Effect September 1; Sodium-Ion Exempt Through 2028** — [Source]() — Published 2026-09-04 Phased levy hits LFP cells; sodium-ion and solid-state exemptions run through 2028. ### [Korea]() LG, Samsung, SK — beyond the headlines - **Did All Three Improve for the Same Reason?** — [Source]() — Published 2026-09-04 No. LGES disclosed KRW 241B in Q2 production incentives against KRW 113.3B operating profit; strip them and the result is -KRW 127.7B. Samsung SDI's battery profit included an unquantified tariff refund. SK On's KRW 821.8B bundled unquantified compensation and AMPC. Only LGES decomposes cleanly. - **Did the Improvement Reach Cash?** — [Source]() — Published 2026-09-04 Partially at LGES, unclear elsewhere. LGES generated KRW 25B operating cash flow against KRW 1.33T EBITDA; a KRW 1.185T working-capital outflow absorbed the gap. Samsung SDI's cash fell from KRW 1.738T to KRW 1.506T despite positive reported profit. SK On's battery-segment cash flow is undisclosed. - **Did ESS Drive the Improvement?** — [Source]() — Published 2026-09-04 ESS grew sharply but EV contracted. Per SNE Research, LGES ESS shipments hit 12.0 GWh in H1 2026, up 357% YoY. Samsung SDI shipped 6.4 GWh, up 20% but losing global share. Combined Korean non-China EV installations fell 6.3% to 74.3 GWh. The two segments offset. - **Is the Rate of Improvement Accelerating?** — [Source]() — Published 2026-09-04 At LGES, yes: ex-incentive operating loss narrowed by KRW 269.9B QoQ in Q2, up from KRW 57.4B improvement in Q1. Samsung SDI's battery-segment AMPC allocation remains undisclosed. SK On's KRW 1.17T QoQ swing includes unquantified compensation. A second-derivative read requires decomposable data; two of three makers don't provide it. - **What Would Confirm or Falsify Recovery?** — [Source]() — Published 2026-09-04 LGES: Lansing LFP ESS yield data and first customer-accepted lots. Samsung SDI: October StarPlus LFP cell production start, per Q2 earnings call guidance. SK On: Flatiron 1 GWh H2 delivery target and Q3 earnings as normalization test after compensation-inflated Q2. - **Can These Three Makers Be Ranked?** — [Source]() — Published 2026-09-04 Not on the metrics that matter. No maker disclosed quantitative cell ASP in Q2 English-language materials. Utilization definitions are incompatible: LGES reports 52.8% on broad manufacturing, Samsung SDI 73% on small batteries only, SK On 36.4% on load hours. Cross-maker ranking on either metric is unsupportable. - [Korean Q2 2026 — Three Improved Quarters, Three Separate Explanations]() — By [Elise Huan-Cartwright]() · Published 2026-09-04 · Format: The Earnings Decomposition LGES, Samsung SDI, and SK On all reported improved Q2 results, which invites the market-turn read. The disclosures don't support it. LGES narrowed its ex-incentive loss by KRW 270B and converted only KRW 25B of cash against KRW 113.3B of reported profit. Samsung SDI beat its own profitability timeline while leaving AMPC and tariff refunds unallocated to the battery segment. SK On swung KRW 1.17T QoQ on three named drivers, none of them sized. Both companies disclosing cash flow converted under 10% of reported operating profit to cash. - [Korean Makers Lost 26 GWh of EV Share in H1 — ESS Replaced Less Than Half]() — By [Elise Huan-Cartwright]() · Published 2026-09-04 The non-China EV battery market grew 26.3% in H1 2026 to 269.0 GWh ([SNE Research](https://sneresearch.com/en/insight/release_view/709/page/0)). Korean makers' combined installations fell 6.3% to 74.3 GWh, compressing share from 37.2% to 27.6%. At prior-year share they would have shipped roughly 100 GWh. The approximately 26 GWh gap went to Chinese suppliers — CATL alone installed [90.5 GWh outside China](https://cnevpost.com/2026/08/07/global-ev-battery-market-share-h1-2026/), exceeding the Korean three combined. - **Q2 Profit Headlines vs. the 45X Decomposition: One-Offs Did the Heavy Lifting** — [Source]() — Published 2026-09-04 Subsidies, tax refunds, and JV restructuring drove most of the reported profit swing across all three makers. - **The Consensus Frame: "Chasm Erased" — ESS and Europe Ended the Downcycle** — [Source]() — Published 2026-09-04 Seoul press declares the trough over. This is the narrative the 45X strip and utilization data test. - **Samsung SDI's LFP Execution Gets Its First Verifiable Signal: Third StarPlus Line Confirmed** — [Source]() — Published 2026-09-04 Equipment orders place a third LFP line at StarPlus; multi-GWh BESS integrator deal expected Q4. - **Upstream Still Bleeding: 10 of 17 Major Materials Firms Posted Losses in Q2** — [Source]() — Published 2026-09-04 Separator and copper foil makers all unprofitable. Cell-maker margin recovery hasn't reached the supply chain. - **Korean Share Erosion Continues: Samsung SDI Falls Out of Global Top 10 in H1** — [Source]() — Published 2026-09-04 Global EV battery usage up 20% H1 YoY, but Chinese makers took 72.4% share. Korean firms lost ground. - **US BEV Sales Down 24.7% in H1 — The Demand Denominator Behind SK On's JV Restructuring** — [Source]() — Published 2026-09-04 EV share fell to 7% of US new car sales. Ford's EV losses map directly to BlueOval SK capacity decisions. ### [The Log]() What was announced, built, and cancelled - [August's Milestone Count Was High — the Verification Rate Was Not]() — By [Elise Huan-Cartwright]() · Published 2026-09-04 August 2026 produced roughly ten distinct milestone announcements across the US battery supply chain. Fewer than half crossed a state that is independently verifiable and costly to reverse. - [LG Energy Solution Lansing — Production Confirmed, Original Promise Replaced, Available Supply Undisclosed]() — By [Elise Huan-Cartwright]() · Published 2026-09-04 · Format: The Stated vs. Observed Audit LGES declared production at Lansing on August 18. What is running there is not what GM and LGES announced in 2022: the customer is Toyota, LGES Vertech and DTE Energy rather than GM, the chemistry is LFP alongside NMC, the primary application is stationary storage rather than automotive, nameplate is 35+ GWh against 50, and the joint venture is gone, with LGES sole owner. The building went up where it was promised. Output rate, yield, customer-accepted volume, uncommitted GWh and facility-level 45X claims are undisclosed. - [Six US Battery Projects Measured Against Irreversible Milestones]() — By [Elise Huan-Cartwright]() · Published 2026-09-04 · Format: Pipeline Maturation Read Atlas Public Policy recorded zero battery investment cancellations for Q2 2026, which tells you the announcements are still on the books and nothing about whether they are moving. Six current US battery supply chain projects, assessed here against irreversible milestones — equipment commissioned, qualification samples delivered, commercial output demonstrated — show a pipeline where most announced capacity has not converted into anything a procurement team can contract. One is in trial operation, one has delivered a qualification sample awaiting customer acceptance, and three have crossed no gate involving irreversible capital under their current configurations. The ones advancing share a common feature: a single corporate sponsor with an existing manufacturing operation and a named customer. - [Which Battery Policy Instruments Produce Route-Level Answers Today]() — By [Ronan Adike]() · Published 2026-09-04 · Format: Policy Gate Status Four federal instruments now bear on battery sourcing routes: a black-mass allocation rule, BABA storage waivers, a grid-security executive order, and the 45X/PFE credit restrictions. They span the distance from a binding constraint with disclosed commercial consequences to authority that has not yet produced a single implementing document. This piece applies one test to each: can a procurement team determine today whether a particular sourcing route is affected, and if not, what is missing? - **Atlas Q2 2026: Battery Sector Net Investment at -$19.5B Since Q1 2025; LGES Michigan Adds $3B to Cancelled Totals** — [Source]() — Published 2026-09-04 Q2 posted $0.3B new investment. Cumulative 14% cancellation rate. Methodology note: Atlas classification may differ from registry entries. - **Samsung SDI Acquires Full SynergyCells JV Stake, Pivots New Carlisle to ESS — Revised Capacity and SOP Undisclosed** — [Source]() — Published 2026-09-04 Acquisition closed. Revised GWh target, investment, timeline, and Indiana incentive amendments not publicly filed as of 2026-08-11. - **Warren Ultium Plant Schedules Restart, 1,400 Workers Recalled After Seven-Month Shutdown** — [Source]() — Published 2026-09-04 Reuters reports planned restart and recall. Sustained post-restart utilization rate unconfirmed; gate-crossing not yet verified. - **Asahi Kasei Holds Grand Opening for Charlotte Separator Line — Commercial Production Still Scheduled H2 FY2026** — [Source]() — Published 2026-09-04 Milestone, not gate: trial operations since 2026-03. Commercial SOP remains ahead. Wet-process line for US cell supply chain. - **Trump Grid-Security EO Creates Dual Compliance Exposure for Storage Projects Already Navigating FEOC Timelines** — [Source]() — Published 2026-09-04 BNEF flags projects mid-construction facing layered FEOC and grid-order risk. Cancellation and delay implications for BESS pipeline. ### [Defense]() Drone, UAV, UUV, and 6T battery intelligence - [§4865 Was Left Off the List]() — By [Ronan Adike]() · Published 2026-09-04 Section 836 of the FY2026 NDAA directs DoD to stand up a [compliance repository](https://uscode.house.gov/view.xhtml?edition=prelim&req=granuleid%3AUSC-prelim-title10-chapter385-subchapter2) by January 2027 for sourcing restrictions in its own subchapter: standardized attestation, unique product identifiers, False Claims Act liability on supplier representations. The covered requirements are listed by section number. Berry Amendment metals (§4862), specialty metals (§4863), miscellaneous procurement restrictions (§4864), and the Buy American Act are all included. §4865 batteries are not. Congress enumerated the sections individually; this is an itemized omission, visible in the statute's definition of "covered sourcing requirement." - [Section 4865's 95% Threshold Moves With a Cost Method Nobody Has Written]() — By [Ronan Adike]() · Published 2026-09-04 · Format: The Mandate Gap Section 4865's 95% functional-component-cost threshold applies to new acquisition programs starting January 1, 2028, 484 days out. The DFARS rule that would define how suppliers demonstrate compliance missed its June 2026 deadline and no proposed text has appeared. The consequence runs past scheduling. Because the statute requires 95% of cost to originate from non-FEOC sources without naming a cost convention, commodity price movements, yield-loss allocation, and transfer-pricing treatment can each move a physically unchanged cell across the threshold. Supplier activity is accumulating against a test that has no arithmetic yet. - [What Defense Demand Instruments Fail to Buy]() — By [Ronan Adike]() · Published 2026-09-04 · Format: Configuration Immobility Premium The DIBC's BES-26-01 solicitation, 10 USC §4817 purchase-commitment authority, and Packet Digital's Navy SBIR orders are the most concrete demand signals in defense batteries. None of them pays a cell manufacturer for freezing a qualified configuration while the rest of the factory keeps optimizing. Public electrode-processing cost models and cell-maker earnings commentary establish that this cost is material and compounds with hold duration. The statutory authority to price it exists and has not been exercised. - **DFARS Battery Rule Nineteen Months Behind Schedule** — [Source]() — Published 2026-09-04 Case 2024-D011's internal deadline shifted to October 7. No NPRM or interim rule has appeared on the Federal Register through September 4. The 180-day statutory implementation deadline expired June 16. No contractor representations, cost methodology, flowdown provisions, or waiver procedure exists in the public record. - **DIBC Cylindrical Cell Solicitation Closed Without Award** — [Source]() — Published 2026-09-04 BES-26-01 now shows Closed on the DIBC solicitation register — changed from open. Status reads Closed, not Awarded or Closed-Awaiting Award. Q&A confirmed no guaranteed offtake; award number and value depend on FY2027 appropriations. The 3 GWh/year objective remains unfunded. - **Sila's $1.4B Loan Commitment Remains Conditional** — [Source]() — Published 2026-09-04 The Office of Strategic Capital's conditional commitment for silicon-carbon anode and cell manufacturing has not closed. Sila must satisfy financial, legal, technical, and diligence conditions before disbursement. No facility capacity, commissioning schedule, defense customer, or Section 4865 evidence file accompanies the announcement. - **Packet Digital Holds Strongest Domestic Production Signal** — [Source]() — Published 2026-09-04 Two Navy SBIR Phase III orders totaling $36.8M cover pilot prototype development through LRIP-2 pouch-cell manufacturing for the APFIT program. Neither notice discloses chemistry, cell quantity, MWh, annual rate, or Section 4865 functional-component cost origin. Above solicitation stage; below program-of-record integration. - **Sixty Thousand Unit Drone Tranche Still Unpublished** — [Source]() — Published 2026-09-04 The planned September 60,000-unit Drone Dominance tranche has not appeared on War.gov as of September 3. An August 20 White House event convened nearly 100 industry representatives; USD(R&E) cited battery supply chain capacity as a scaling constraint. No cell supplier, chemistry, or configuration was disclosed. - **Three Korean Makers Signal Defense Interest, Zero Contracts** — [Source]() — Published 2026-09-04 The Elec reports LGES, SK On, and Samsung SDI are considering expanding drone and aerospace battery businesses. LGES has received early-stage US defense inquiries per Bloomberg. No contract, cell configuration, committed volume, or US compliance file accompanies any of the three. Directional sentiment only. - **Remplir Cells Verified for ROK Army Drones** — [Source]() — Published 2026-09-04 The Korean Army is sourcing MND-verified Remplir battery cells for 11,376 training drones from PRENEU, ALUX, and AD System, deliveries due by year-end. First named, performance-verified battery supply route for ROK Army drone procurement in the public record. B-grade signal via The Elec. - **Samsung SDI Offtake Quantified at 0.25 GWh/Year** — [Source]() — Published 2026-09-04 Forge Nano's Morrisville facility targets 3 GWh/year nameplate; August 19 groundbreaking advanced construction. An SEC S-4/A filing quantifies Samsung SDI's conditional purchase at 0.25 GWh/year for three years after operations begin. Manufacturing targeted for 2028. No DoD contract or QPL entry accompanies. - **DDP, Blue UAS, and NDAA: Three Compliance Frameworks, Three Different Battery Deadlines** — [Source]() — Published 2026-09-04 DCMA teardowns surfacing Chinese cells on cleared platforms; IUS maps the DDP supply chain framework gaps. - **FY2027 NDAA Stalls After Senate Cloture Fails 50–46** — [Source]() — Published 2026-09-04 Section 847's expanded battery and BMS procurement restrictions remain unenacted; no visible path to floor vote. - **OSC Signs $1.4B Conditional Loan Commitment with Sila Nanotechnologies** — [Source]() — Published 2026-09-04 Largest defense-linked battery financing to date. Conditional: no facility site, capacity figure, or timeline disclosed. - **Unusual Machines Acquires Upgrade Energy for Domestic UAS Battery Pack Assembly** — [Source]() — Published 2026-09-04 DDP Phase 2 finalist vertically integrates battery pack manufacturing. Clearest supply chain move since Packet Digital. - **White House Drone Dominance Summit Names Batteries as Scaling Bottleneck** — [Source]() — Published 2026-09-04 August 20 summit targets 200K sUAS by 2027. The 60,000-unit September order still absent from SAM.gov. - **DCMA Streamlines Blue List Assessor Process; Cell-Level Provenance Data Still Missing** — [Source]() — Published 2026-09-04 Faster platform certification pipeline, but portal fields still do not expose battery cell compliance evidence. ### [Qualification]() Pack-level requirements, test conditions, and standards by application - [Compound Stressor Gaps in eVTOL Propulsion Battery Qualification]() — By [Ronan Adike]() · Published 2026-09-04 · Format: The Standards Map EASA MOC VTOL.2440 requires trigger method, SOC, internal-short position, and heating rate to be characterized as interacting variables — the strongest compound stressor mandate any regulator has published for propulsion batteries. The FAA has no public equivalent. This card maps four consequential stressor combinations the eVTOL mission presents against what each jurisdiction governs and what the DVP must define itself. All four are program-owned in at least one jurisdiction, and two — aging severity and mission-duty conditioning before initiation — are program-owned in both. - **MOC-3 Mandates Aged Article, SOC, and Thermal Combined** — [Source]() — Published 2026-09-04 EASA MOC-3 (SC-VTOL Issue 2) requires propagation testing on aged or environmentally stressed articles at specified SOC, stabilized at 55°C or max operating temperature. Strongest published combined-stressor requirement across all four applications reviewed. Aging method and degree remain applicant-defined through EASA coordination. - **Fast-Charge After High-Rate Discharge Has No Combined Test** — [Source]() — Published 2026-09-04 CAP 3203 documents elevated pack temperature following high-rate landing discharge. Fast-charge initiation at 30–40% SOC in this thermal state raises lithium plating and T1 approach risk. MOC-3 and DO-311A treat charging and thermal conditions as separate tests. The turnaround sequence conjunction is unaddressed. Coupling gap. - **Concurrent Vibration and Discharge Has No UAS Test** — [Source]() — Published 2026-09-04 Multirotor drones sustain airframe vibration concurrent with variable-rate discharge throughout flight. IEC 62619 and ASTM F3005-22 test mechanical and electrical conditions separately. No reviewed UAS battery standard requires simultaneous vibration and electrical cycling. Coupling gap — program-defined test required. - **UN 38.3 Altitude Simulation Applies Zero Electrical Load** — [Source]() — Published 2026-09-04 UN 38.3 T.1 simulates reduced pressure at zero electrical load for transport eligibility. Drones discharge at operational altitude under reduced ambient pressure simultaneously. No UAS battery standard requires altitude simulation with concurrent discharge. Transport test does not represent operational conjunction. Coupling gap. - **Fall Impact at Operational SOC Entirely Program-Defined** — [Source]() — Published 2026-09-04 No dedicated humanoid battery standard exists. IEC 62619 Cl. 7.2.3 covers drop without specifying SOC, orientation, monitoring duration, or human-proximity propagation acceptance criteria. The full conjunction — fall energy, charged state, thermal observation window, proximity consequence — must be defined at program level. Program-owned. - **Locomotion Duty History as Abuse Preconditioner Is Undefined** — [Source]() — Published 2026-09-04 Humanoid packs sustain continuous mechanical shock from locomotion simultaneous with electrochemical cycling at 140–420 W sustained load. No borrowed standard mandates a humanoid-representative duty-cycle history before propagation or abuse testing. T1 and T2 reduction from realistic operational aging remains untested when fresh articles are used. Program-owned. - **Pressure Plus Electrical Duty Has No Combined Protocol** — [Source]() — Published 2026-09-04 ABS Rules §10/11.5.6 require pre-service pressure testing to design depth and separate BMS functional testing. UUVs discharge continuously under hydrostatic pressure throughout the mission. No ABS clause or commercial standard specifies mission-representative electrical load during the design-depth pressure condition. Coupling gap. - **Thermal Runaway Propagation at Depth Has No Test** — [Source]() — Published 2026-09-04 NAVSEA S9310 Rev. 3 specifies propagation acceptance at approximately atmospheric conditions. Venting behavior, gas expansion, and containment response depend on ambient pressure. No commercial class rule or ISO document establishes an induced-fault propagation test at design-depth hydrostatic pressure. Coverage gap — the condition itself is unaddressed. - **Quantifying the key parameters of thermal runaway in aviation lithium-ion battery modules under different triggering methods** — [Source]() — Published 2026-09-04 Compared local and overall heating triggers on a 12-cell, 300 Ah pouch aviation module. Local heating yielded higher explosion hazard (TNT equivalent 307 g vs. 235 g); overall heating produced higher peak temperature (1358 C vs. 965 C) and faster propagation. Each method envelopes a different failure mode. - **A novel pressure compensated structure of lithium-ion battery pack for deep-sea autonomous underwater vehicle** — [Source]() — Published 2026-09-04 Analyzed pressure-tolerant vs. pressure-compensated AUV pack architectures across 300–6000 m (3–60 MPa). A piston-compensated, oil-immersed 8s9p NCM design saved at least 18.3% structural weight at 60 MPa while reducing peak battery temperature — both effects produced by the same dimethyl silicone oil medium. - **The effects of different trigger methods on thermal runaway propagation in a 6.6 kWh lithium-ion pouch-cell battery module** — [Source]() — Published 2026-09-04 Applied four trigger methods (electrical pad heating, local flame, 1–2C overcharge, 50 kW burner) to a 6.6 kWh NMC pouch-cell module. One method caused full-module propagation; another produced none. Trigger selection determined whether propagation occurred at all, not just its severity. - **Review of pressure compensated immersion battery systems for deep-sea power applications** — [Source]() — Published 2026-09-04 Surveys pressure-compensated immersion battery architectures for deep-sea applications, covering oil-immersed thin-film and piston-compensator designs across depth ranges. Architecture selection between pressure-tolerant and pressure-compensated designs is depth- and mission-dependent; no governing class rule prescribes the choice. - [SAIL III Finalized Design Assurance Without an Energy-Storage MoC]() — By [Ronan Adike]() · Published 2026-09-04 EASA's SAIL III design-assurance route is institutionally settled. Final MoCs for OSO #2, #3, #5, #6, #8, #18, #19/#20, and #24 — covering design assurance, C2 link, envelope protection, environmental conditions, and operational documentation — closed consultation in September 2025 and are published with declaration forms. An engineer filling DVP rows for these process-layer requirements has a regulatory template to cite. - **TR Trigger Method Alters Propagation Path and Explosion Severity in Aviation Battery Modules** — [Source]() — Published 2026-09-04 Local heating yielded ~2x power density vs. overall heating but lower peak temperatures. Trigger selection is a DVP variable. - **MIL-STD-810H Method 520.5: Combined-Environment Testing Complements Single-Stressor Coverage, Does Not Replace It** — [Source]() — Published 2026-09-04 Method 520.5 couples temperature, humidity, vibration, and altitude. DVPs need both combined and individual test lines. - **Simultaneous Temperature-Vibration Loading Exposes Failure Modes Sequential Battery Testing Misses** — [Source]() — Published 2026-09-04 Thermal expansion mismatch under concurrent vibration accelerates fatigue beyond what stacked single-stressor sequences predict. - **Cross-Standard Harmonization Review Catalogs Persistent Variability in LIB Safety Test Protocols** — [Source]() — Published 2026-09-04 Heating rates, TR-initiation criteria, and chemical abuse coverage still diverge across IEC, SAE, and UL frameworks as of 2026. - **EASA SC-VTOL MOC-5: Response-to-Comments Still Pending After October 2025 Consultation Close** — [Source]() — Published 2026-09-04 No final MOC-5 publication through September 2026. eVTOL battery safety MOCs remain in draft for DVP purposes. - **TRP Containment Requirements Diverge Sharply Between Manned eVTOL and UAV Safety Targets** — [Source]() — Published 2026-09-04 Without active TRP mitigation, conservative safety targets are met for UAVs but not manned eVTOL configurations. ## More - [Publication guide]() - [Issue archive]()