BYD Battery partners with Changsha Fusheng to launch automotive-grade blade batteries. Credit: BYD Understand China EV’s Market Real-time notifications when critical EV data is released All important data in one place 2,000,000+ data points Become a member BYD’s battery subsidiary FinDreams Battery has signed a cooperation agreement with Changsha Fusheng Technology to develop Blade Battery systems for industrial and mining rail locomotives. The agreement was signed on September 7 at BYD’s Pingshan headquarters in Shenzhen, according to a company announcement. The partnership targets locomotives used in industrial facilities, mines and railway yards, including shunting and on-site transportation. The agreement says that those new rail-vehicle Blade batteries must be automotive-grade. FinDreams will provide support for battery research, development, and manufacturing. Changsha Fusheng will handle system integration and application development, drawing on its battery management systems and electronic control technology. Changsha Fusheng Technology develops integrated energy systems for equipment operating within defined sites. Its role in the partnership with BYD will be to integrate Blade batteries with the control systems required for industrial rail operations, per the agreement. However, the announcement did not disclose the agreement’s value, battery supply volumes, locomotive specifications or a timetable for commercial operation. The deal adds to FinDreams’ recent partnerships in mining and industrial transport. On September 5, the battery supplier signed a similar agreement with Zero Carbon Engine Technology Group. The companies plan to explore projects in Mongolia, including electric mining trucks. While rail locomotives are something new for BYD, heavy-duty trucks are not really. In June 2026, BYD delivered 100 T31 electric dump trucks, each equipped with a 424 kWh Blade Battery, to construction transport companies in Shenzhen. Its Q3 electric tractor truck also uses Blade Batteries and was showcased alongside the T31 at an April event in Hunan, where BYD secured agreements for 150 new-energy heavy trucks. The Q3 electric tractor will launch at IAA in Germany later this year. BYD is the number two battery supplier in China. Between January and July 2026, the company installed 72 GWh of EV batteries domestically, conquering an 18% market share. That is, however, 13% down from the same period last year. BYD’s main competitor, CATL, meanwhile, installed 186 GWh of EV batteries in China, having a 46% market share. Despite its dominant position, that is a 22% growth compared with the same period the year before. And automakers are aware of CATL’s growing hegemony and are moving to reduce their reliance on CATL and gain greater control over battery supply. For example, Li Auto (CATL’s fourth-largest EV battery customer in April) is shifting to batteries designed in-house and manufactured by Sunwoda, in which it announced a 2.65 billion yuan investment. The move follows Xpeng’s earlier shift away from CATL, suggesting that the battery maker’s scale does not guarantee customer loyalty. January – July 2026 Market Share of Top 10 EV Battery Makers Most important news in your inbox. Recaps · scheduled All you need, in one email. Instant alerts · real-time Ping me when an article goes live. 0 of 27 topics selected Bundle into one email per day — instead of one email per article No spam · Unsubscribe with one click · Change settings anytime
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