Chinese firms test solid EV batteries, 800‑mile range
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- Dongfeng Motors began testing a solid-state battery prototype in extreme cold, reporting an energy density of 350 Wh/kg and a CLTC range of over 1,000 km (620 miles).
- Changan Automobile will start trial installations by the end of Q3 2026, using a “Golden Bell” all-solid-state battery with 400 Wh/kg energy density to deliver over 1,500 km (932 miles) CLTC range.
- Chery unveiled its “Rhino” series all-solid-state battery with 600 Wh/kg energy density, targeting over 1,500 km (932 miles) range and planning vehicle testing next year, while its semi‑solid‑state “E liquid” pack can add 500 km (310 miles) in 8 minutes at up to 1,200 kW charge.
- BYD plans small‑scale production of solid-state batteries in 2027, and its Blade Battery 2.0 LFP pack can provide over 1,000 km (621 miles) CLTC range with 1,500 kW fast‑charging stations.
- CATL also intends to begin small‑scale production of solid-state batteries in 2027, joining BYD as a major Chinese battery maker.
- Factorial Energy claims its Solstice platform reaches up to 450 Wh/kg energy density—80 % higher than conventional lithium‑ion—delivering over 600 miles range, and its cells powered a Mercedes‑modified EQS to travel 1,200 km (745 miles) in September.
Why it matters: Automakers that secure solid-state production lines can offer EVs with 800‑mile‑plus ranges and ultra‑fast charging, giving them a market edge as battery costs fall and consumer range anxiety eases; rivals still relying on lithium‑ion risk falling behind in performance and safety.
