Battery Suppliers

Battery suppliers refer to enterprises that supply traction batteries, starter batteries, and related auxiliary products to vehicle manufacturers. As the "heart" of a new energy vehicle (NEV), the traction battery accounts for 35% to 40% of the total vehicle manufacturing cost, giving battery suppliers significant bargaining power across the automotive value chain. Currently, China's traction battery market has formed a competitive landscape defined by "one dominant player, one strong challenger, and diversified contenders" with high concentration at the top. The client portfolios, technology roadmaps, and production capacity layouts of leading manufacturers profoundly influence the development trajectory of the NEV industry.

Main Classifications

Battery suppliers can be broadly categorised by product type and supply tier.

By product type, they mainly include traction batteries (supplying driving power for electric vehicles, covering ternary lithium and lithium iron phosphate/LFP chemistries), starter/start-stop batteries (serving as auxiliary starting power for conventional internal combustion engine (ICE) and mild-hybrid models, dominated by lead-acid units), and low-voltage lithium-ion batteries (used in the low-voltage electrical systems of NEVs).

By supply tier, they are divided into cell and battery pack manufacturers (directly supplying complete battery assemblies to OEMs, such as CATL, FinDreams Battery, and CALB) and battery material suppliers (providing core raw materials such as cathodes, anodes, electrolytes, and separators to cell makers, such as CNGR, Shanshan, and Yongtai Technology).

Competitive Landscape: High Market Concentration at the Top

China's traction battery sector displays extreme market concentration. From January to February 2026, CATL firmly led the industry with a 52.7% market share, followed by BYD's FinDreams Battery in second place at 17.0%, and CALB in third at 6.8%. The top three manufacturers collectively commanded a 76.5% market share, while the top ten accounted for 95.8% of the total volume.

CATL maintains a decisive lead underpinned by technological superiority and a well-diversified client base. Its primary customers include top-tier carmakers such as Li Auto (procurement share of 12.6%), Tesla China (12.2%), Geely (10.7%), NIO (10.2%), and Xiaomi EV (7.9%). In 2025, CATL's R&D expenditure reached RMB 22.1 billion, totaling over RMB 90 billion over the past decade, yielding continuous breakthroughs across diverse battery chemistries.

FinDreams Battery relies on BYD's massive internal demand while achieving strong growth in external OEM supply. Within its customer mix, BYD's in-house procurement takes up 49.2%, followed by Xiaomi EV at 17.9%, Fangchengbao at 10.0%, XPeng at 6.6%, and Denza at 4.3%. FinDreams Battery's proprietary Blade Battery technology delivers distinct competitive advantages in thermal safety and packaging energy density.

CALB ranks third in installed capacity on the back of key supply partnerships with carmakers such as XPeng (procurement share of 15.7%), Leapmotor (12.4%), and GAC Toyota (11.9%).

Second-Tier Manufacturers and Emerging Challengers

Second-tier battery makers, including Gotion High-tech, EVE Energy, SVOLT, and Sunwoda, are actively competing for market share through rapid technological catch-up and competitive pricing.

Gotion High-tech maintains a strong foothold among domestic brands and commercial vehicles, supplying SAIC-GM-Wuling (procurement share of 19.1%), Chery (18.8%), Hanma Technology (15.0%), Leapmotor (14.2%), and Changan (9.2%). In 2026, Gotion High-tech entered the supply chain for the AITO M6 EV for the first time, marking a significant breakthrough into the premium EV segment.

Sunwoda EVB, which originated in consumer electronics batteries, diversified into traction batteries in 2014. To date, it has supplied battery packs for more than 34 mass-production models across over 18 OEM clients, including Li Auto, XPeng, Leapmotor, Geely brands (Zeekr, Galaxy, Lynk & Co), Dongfeng, GAC, SAIC, Volkswagen, and Volvo. Industry sources indicate that Sunwoda EVB has also entered Tesla's global traction battery supply chain, becoming its fifth battery vendor alongside CATL, BYD, Panasonic, and LG Energy Solution.

Supply Chain Shift: From Single-Source to Multi-Vendor Strategy

In recent years, several NEV makers have moved away from relying solely on a single battery supplier, adopting a multi-sourcing strategy instead. The 408th batch of vehicle homologation catalogues from China's Ministry of Industry and Information Technology (MIIT) reveals that the AITO M6 EV is fitted with Gotion High-tech batteries for the first time; Li Auto's next-generation L8 no longer relies exclusively on CATL; Xiaomi EV has onboarded CALB as an additional supplier; while XPeng and Leapmotor have likewise broadened their vendor rosters.

The primary catalyst for this shift stems from vehicle cost structures and mounting margin pressures. Because traction batteries represent a substantial proportion of overall production costs, an exclusive partnership guarantees supply security but severely weakens the carmaker's commercial bargaining power. With industry-wide profit margins under pressure in 2026, OEMs are actively seeking more cost-efficient battery options.

Starter Batteries and Low-Voltage Lithium Batteries

In the automotive starter battery segment, Sail Battery Co., Ltd. (CSIC Sail) is a leading domestic brand with an annual production capacity of 25 million lead-acid batteries, holding roughly a 20% share of China's OE starter battery market. It is the first domestic supplier to deliver AGM batteries to Mercedes-Benz and BMW, and also supplies key manufacturers including BYD, Chery, Changan, Beijing Benz, BMW Brilliance, and FAW Audi.

In the automotive low-voltage lithium-ion battery sector, Zhuhai CosMX has secured production nominations from numerous leading domestic and global carmakers, including SAIC, IM Motors, GM, Jaguar Land Rover, Li Auto, Chery, GAC, Geely, Stellantis, Mercedes-Benz, NIO, SAIC Volkswagen, and Dongfeng Nissan.