BYD Approached a New Battery Revolution

BYD stated that solid-state batteries have reached a critical stage of development, but their mass adoption is limited by technological and production barriers. The company's chief scientist, Lian Yubo, announced this at an industry seminar in China. According to him, the transition from pilot production to mass production is complicated by the high complexity of technologies, costs, and low production stability.

The key problems remain the stability of solid-state interfaces and the suppression of lithium dendrites. These factors directly affect the safety and durability of batteries.

BYD is developing a full-cycle approach: from user requirements to vehicle parameters, system characteristics, and then to cell design. The company believes that automakers should participate in battery development, considering range, service life, charging speed, and safety.

At the same time, solid-state batteries are not considered the only solution. BYD continues to develop lithium-ion technologies and sodium-ion batteries. The latter can provide up to 10,000 charge cycles and are focused on affordable segments.

The company is also improving the Blade Battery 2.0 with a density of about 210 Wh/kg and fast charging from 10% to 70% in about 5 minutes.

BYD plans to start pilot production of solid-state batteries by 2027. Demonstration cars may appear in the same period, and mass adoption is expected later - as costs decrease and technologies develop.

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