Research
The Origin Vise: How IAA and TCA Close Around Europe's Battery Supply Chain
The IAA and TCA are two independent origin-locking mechanisms converging on Europe's cathode supply chain. China controls 81.3% of global CAM output; Europe's own capacity covers less than 30% of its cathode demand (2025 estimate), against 700–1,000 GWh of projected 2030 battery demand. The cell-level cost gap is $41–43/kWh (T&E 2025), narrowing to ~$14/kWh by 2030 only if European yield and automation catch up. TCA origin thresholds of 55/70/65% take effect 1 January 2027; IAA procurement rules reach full force from 1 January 2029, per law-firm readings. EcoPro BM runs the only Korean CAM plant in commercial production in the EU (54 kt, ~32 GWh); four Chinese plants totaling ~150 kt (~88 GWh) ramp through 2028.
What 10,000 Tonnes of Cathode Is Actually Worth in GWh
The same 10,000 tonnes of cathode active material yields 7.1 GWh in NCM811 but only 2.8 GWh in NFPP sodium-ion — a 2.5× spread the industry's '1,600 t/GWh' rule cannot capture. This handbook traces that rule to its 2021 NCM523/622 origin, lays out a transparent two-layer conversion chain (chemistry × yield), and provides a complete eight-material table with anchor verifications. Official disclosures from five companies are cross-referenced against the model at the same order of magnitude. The article also clarifies SOC, N/P ratio, and what they do not change in the t/GWh calculation.
The Queue Is Not a Pipeline: Why US Storage Lives or Dies on Transmission
The US interconnection queue held about 2,060GW at end-2025, including roughly 749GW of storage, but only 13.1% of capacity entering the queue in 2000–2020 had reached operation. This analysis shows why batteries can shift electricity across hours but cannot replace transmission across regions—and why a 61-month median interconnection timeline, scarce high-voltage buildout and network-upgrade exposure increasingly determine which storage projects can be financed and built. As data-center demand rises, grid location, cost allocation and bankable interconnection rights are becoming more decisive than another marginal reduction in battery-cell cost.
The Sodium Crossover Is a Scale Problem
Sodium-ion does not beat LFP at one fixed lithium price. The answer moves with NFPP cathode cost, hard-carbon scale and China's consumption tax. This analysis rebuilds the crossover from the cell BOM: LFP follows a lithium-linked straight line, while NFPP sodium-ion falls from CNY 0.441/Wh at 1GWh to CNY 0.317/Wh at 25GWh and CNY 0.261/Wh at 50GWh. At 25GWh, the no-tax lithium carbonate crossover is RMB 75,000/t; a 4% tax lowers it to RMB 54,000/t. The result is a practical map of the material prices and qualified scale that sodium-ion must deliver.