China Targets Mass-Market Solid-State Batteries By 2030, But CATL Urges Patience

Beijing has laid out an ambitious battery industry roadmap that aims to bring solid-state cells into large-scale production by 2030, part of a broader effort to protect China’s dominant position in electric vehicle technology. The plan, published on September 28, sets the goal of extending the country’s existing lead in conventional lithium-ion manufacturing into the next generation of energy storage.

Yet the world’s largest EV battery producer is sounding a note of caution. CATL chairman Robin Zeng has previously placed solid-state technology at just four on a nine-point readiness scale, where nine would represent full mass-production capability. He has also suggested that seeing these batteries in millions of vehicles before the end of the decade is unlikely, given the twin barriers of performance and cost. The company has confirmed it will begin limited output of solid-state cells in 2027, but has been clear that scaling up to much larger volumes represents a far tougher challenge.

The obstacles are not trivial. Lower costs, improved stability and genuine breakthroughs in materials and manufacturing will all be necessary before solid-state batteries can move beyond niche applications. China’s Ministry of Industry and Information Technology has itself acknowledged shortfalls in innovation and imbalances between supply and demand within the existing battery sector. Scaling a laboratory success into a factory-floor reality is a different problem entirely, and that gap explains why 2030 looks more like a starting line than a finish line.

Other major players share this measured outlook. LG Energy Solution’s North America president Robert Lee has pointed to the difficulty of manufacturing large solid-state cells, and expects the technology’s first mass-market uses to appear outside electric vehicles altogether. Meanwhile, semi-solid-state batteries are already trickling into a limited number of Chinese vehicles, though these early rollouts should not be read as evidence that all-solid-state cells are ready for widespread adoption. One BloombergNEF forecast projects that solid-state technology will represent only about 10% of combined global EV and battery-storage demand by 2035.

China’s roadmap reaches well beyond solid-state chemistry. It also covers sodium and flow batteries, improved safety and temperature behavior, and higher manufacturing quality, with a separate target for long-life lithium cells capable of 15,000 charge cycles. The country’s five-year planning model gives agencies and companies a shared sense of direction; the previous 2021–2025 cycle ended with China accounting for roughly 70% of global electric car production. Getting solid-state batteries into cars would be a notable milestone. Getting them into millions of affordable cars is the achievement that will actually matter.