China's CATL and BYD now dominate global battery production with cost advantages that Western automakers cannot match, reshaping EV supply chains from patents to production.
Chinese battery makers are pulling ahead of Western rivals on cost, production scale, and patent filings, a shift that is reshaping the global supply chain for electric vehicles and grid storage.
Contemporary Amperex Technology Co. Ltd. (CATL) alone holds 14,000 active patents, more than the combined total of South Korea's LG Energy Solution and Japan's Panasonic, according to data from the European Patent Office. The company's latest generation LFP battery packs cost about $60 per kilowatt-hour to produce, roughly half the cost of comparable packs from U.S. or European manufacturers, industry analysts said.
BYD, China's other dominant battery producer, has cut production costs further by integrating battery manufacturing with its own EV assembly line. The company's Blade battery, which uses a cell-to-pack design that eliminates module-level components, now powers models sold in 70 countries.
The cost advantage is widening. China controls about 70% of global lithium refining capacity and produces roughly 80% of all battery cells, according to Benchmark Mineral Intelligence. That concentration gives Chinese producers leverage over raw-material supply that Western competitors cannot easily replicate.
Western automakers are responding. Ford licensed CATL's LFP technology for its Mustang Mach-E and F-150 Lightning models. Tesla already uses BYD batteries in its Berlin-built Model Y. Those partnerships give Chinese firms a foothold in Western supply chains that policy makers in Washington and Brussels have struggled to contain.
The U.S. Inflation Reduction Act, which ties EV tax credits to battery components made outside China, has not yet slowed the trend. CATL and BYD announced new factory projects in Hungary and Indonesia in 2024, sidestepping U.S. restrictions while expanding into European and Southeast Asian markets.
Patent filings tell the same story. Chinese companies filed 48% of all battery-related patents globally in 2023, up from 28% five years earlier, the European Patent Office reported. U.S. and European filings fell as a share of the total over the same period.
The next test comes in solid-state batteries, where Toyota, Samsung SDI, and QuantumScape are racing to commercialize the technology. CATL said in June it aims to produce a solid-state battery by 2027. BYD said it expects to begin mass production by 2028.
For now, the cost gap is the decisive factor. Chinese battery packs cost 30-40% less than Western equivalents, a gap that has held steady even as raw-material prices have fallen. That price advantage is pulling global EV makers deeper into China's orbit, with or without policy intervention.
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