Caught Between China and Compliance

New federal rules, cratering EV demand, and China's grip on battery supply are pushing America's LFP sector to a breaking point

7 May 2026

America's lithium iron phosphate industry is confronting a convergence of pressures that analysts say could reshape its structure for years. A report published in May 2026 by the Center for Strategic and International Studies identifies three simultaneous forces: new federal sourcing requirements, a steep fall in electric vehicle demand, and China's near-total control of global LFP cell production.

Legislation set the collapse in motion. Signed on 4 July 2025, the One Big Beautiful Bill Act ended the $7,500 federal EV tax credit on 30 September of that year. US EV sales fell 36 per cent in the fourth quarter. Manufacturers that had expanded capacity in anticipation of sustained consumer demand are now redirecting output toward grid-scale energy storage, a segment where federal incentives remain in place and project pipelines are growing.

Compliance obligations compound the difficulty. Under the law's Prohibited Foreign Entity framework, storage projects beginning construction this year must draw at least 55 per cent of component costs from non-restricted suppliers. China accounts for roughly 98 per cent of global LFP cell output, leaving developers with few ready alternatives.

Federal tax support remains the central variable in project economics. Even with tariffs on Chinese batteries reaching 156 per cent in April 2025, domestically produced LFP cells still depend on the 30 per cent Investment Tax Credit to remain cost-competitive. Non-compliance removes that credit entirely, making most projects unbankable.

South Korean manufacturers are moving quickly to fill the gap. LG Energy Solution and Samsung SDI are converting US production lines from EV to grid storage cells. Korean suppliers now account for more than 80 per cent of projected compliant storage capacity in the country for 2026.

Regulatory clarity remains the outstanding question. Treasury is expected to publish final safe harbour guidance on foreign entity restrictions by 31 December 2026. Until that happens, developers are committing to large sourcing decisions under interim rules. Record US storage installations were logged in 2025; whether that momentum holds will depend largely on how quickly Washington resolves the compliance uncertainty it helped create.