These advances highlight how the continuous optimization of existing lithium-ion battery materials, cells, and designs can continue to deliver significant improvements in battery performance, especially in terms of charging speed, safety, and efficiency.
Beyond lithium-ion batteries, China is also leading the commercial push for sodium-ion (Na-ion) batteries. Sodium-ion batteries are gaining attention due to their potential to offer better performance and operation at low temperatures, two areas where traditional LFP batteries can fall short. They also offer protection against potential disruptions in the supply of lithium-ion battery materials. CATL recently unveiled its sodium-ion battery for electric vehicles, marketed under the Naxtra brand, marking a significant step toward commercial viability. While startups in Europe and North America are contributing innovations in electrode and cell chemistry, China is ahead in scaling up production. Major Chinese suppliers of anode and cathode materials have already committed to building sodium-ion component production facilities, and cell production is also much more advanced.
China's dominance is raising concerns among Western manufacturers. The difficulties faced by European and North American battery companies, such as the bankruptcy of Northvolt and the reduction in investment plans by companies like ACC, PowerCo, Umicore, and Ford, highlight the enormous challenges of keeping pace. The slowdown in electric vehicle adoption during 2024 has made cost and performance parity with internal combustion engine (ICE) vehicles a renewed priority, and as current lithium-ion designs approach their performance limits, especially in terms of energy density, new and advanced battery technologies are becoming increasingly important.
For companies outside of China, pioneering next-generation technologies may be the only way to survive and remain relevant. In this respect, the relatively high number of European and North American startups developing next-generation battery technologies offers some hope.
Solid-state batteries remain a long-promised innovation, offering enhanced safety and high energy densities when combined with lithium-metal or anode-less designs. Challenges persist regarding scalability, cost, and long-term performance, though developments such as Stellantis' recent validation of Factorial's solid-state cells highlight ongoing progress. In the near term, high-silicon anodes continue to be commercialized, with data from numerous companies highlighting their potential to improve energy density and fast-charging capabilities. At the cathode, ultra-high-nickel materials are pushing the boundaries of performance but will not deliver the much-desired cost reductions. The low cost of LFP batteries has fueled their rapid market share growth since 2020, but widespread adoption would further entrench global dependence on Chinese supply chains, as nearly 100% of LFP cathode material production is located in China. Meanwhile, interest in lithium-manganese (Li-Mn) rich cathodes is growing. These materials promise a middle ground: improved energy density compared to LFPs, while reducing cost compared to NMCs. This could allow Li-Mn rich cathodes to act as an alternative to LFPs in European and North American markets and offer a way to diversify the supply chain. As always, challenges remain, with questions about the stability of Li-Mn rich cathode materials and the lack of commercial deployment.
Conclusion: Innovation, Scale, and Strategy.
Numerous advanced and next-generation technologies for lithium-ion batteries are being developed, which will further improve battery performance and, consequently, the widespread viability of electric vehicles and stationary energy storage systems. Outside of Asia, and particularly China, the development of next-generation technologies is likely to play a key role in the development of competitive domestic battery markets. As policies and geopolitical tensions create uncertainty about the pace of electric vehicle and stationary energy storage deployment, developing cost-effective, high-performance battery solutions and localized supply chains will be critical.
Author: Dr. Alex Holland, Director of Research at IDTechEx
