China's 2030 Solid-State Battery Roadmap Faces CATL Cost Warning

China's Ministry of Industry and Information Technology (MIIT) released a coordinated national battery roadmap on September 14, aiming for large-scale solid-state battery deployment by 2030. The plan, issued jointly with six other government bodies including the National Development and Reform Commission, seeks to extend the country's dominant position in conventional lithium-ion batteries into the next generation of technology.

Solid-state batteries promise improved safety, higher energy density, and better performance in extreme temperatures compared to today's cells. The roadmap calls for accelerating commercialization by cutting costs, boosting performance and stability, and developing key materials and manufacturing processes for large-scale output. China's industrial planners have set a firm deadline for initial volume production by the end of the decade.

Technical and manufacturing challenges remain

Regulators identified specific technical hurdles that must be cleared. These include improving ionic conductivity, cycling stability, interfacial contact, cycle life, and pressure system engineering. Manufacturers are encouraged to pair high-voltage, high-capacity cathodes with lithium metal anodes or anode-free designs. Specialized equipment, such as isostatic presses built for extreme pressure and heat, is also a focus for the production process.

No manufacturer currently operates large-scale commercial production of solid-state batteries. LG Energy Solution’s North America president Robert Lee highlighted the difficulty of manufacturing large solid-state cells. Those introductions shouldn’t be mistaken for proof that all-solid-state batteries are ready for widespread adoption.

CATL plans limited 2027 production with premium applications first

The world's largest battery maker, CATL, confirmed plans to start limited production of solid-state batteries in 2027. The company warns that cost and manufacturing hurdles still stand between the technology and mass adoption, suggesting moving to much larger volumes will be difficult. Initial batches from CATL and other makers are expected to go to premium electric vehicles, drones, and robots before reaching broader vehicle use.

CATL chairman Robin Zeng had previously rated solid-state technology at level four out of nine on a readiness scale, with nine representing mass-production readiness. He said adoption in millions of vehicles was unlikely before the end of the decade because performance and cost remained obstacles. That makes 2030 a possible starting point for these batteries to reach more cars, rather than the year they suddenly become an industry-wide standard.

Broader battery strategy includes sodium, flow, and recycling goals

China's battery roadmap is broader than solid-state technology. It includes pushes for sodium-ion and flow batteries as complements to the current lithium-ion paradigm. The plan sets ambitious quality and longevity targets for existing technology, including a call for lithium batteries to reach a lifespan of 15,000 discharge cycles and for leading manufacturers to bring defect rates down to the parts-per-billion level.

The strategy also mandates environmental and supply chain measures. Companies must set up used battery collection networks aligned with their sales volumes and are encouraged to build recycling capacity in major export markets. A digital identity system for EV batteries is proposed, alongside work on battery passport schemes and mutual recognition of carbon footprint data.

National push builds on past EV dominance to shape next-gen tech

The coordinated national push builds on China's established manufacturing and research base. The previous five-year plan cycle saw China cement its EV dominance, accounting for 70% of global electric car production by 2025. The new 2026-2030 battery roadmap aims to carry that advantage into the next generation.

The plan backs mergers and restructuring among battery makers to create fewer but stronger domestic players and calls for faster development of domestic lithium and cobalt resources. It also calls for early strategic planning on other next-generation battery types, including alkali metal-ion units, multivalent-ion batteries, and nuclear batteries, promoting new technologies in smart devices and supporting the electrification of automobiles, shipping, aviation, and intelligent robots.

Semi-solid-state batteries, which combine solid electrolytes with a small proportion of liquid components, are already reaching vehicles in China in limited numbers. However, getting solid-state batteries into affordable EVs could take longer than getting them into production. One forecast suggests solid-state technology will account for just 10% of combined global EV and battery-storage demand by 2035. China has set mass-producing solid-state batteries as a national goal to help move things along, but the country also needs to find the engineering solutions needed to actually make it happen. China's industrial planners have set a firm deadline for initial volume production of solid-state batteries by the end of the decade.