- Sunwoda plans to complete a 0.2 GWh pilot production line for solid-state battery cells by year-end.
- Sunwoda has already developed and tested laboratory samples of lithium metal batteries with a higher energy density of 520 Wh/kg.
Sunwoda (SHE: 300207) has launched a new generation of solid-state batteries, becoming the latest Chinese company to announce a breakthrough in this field.
The battery manufacturer unveiled its new "Xin·Bixiao" polymer all-solid-state battery at today's 2025 New Energy Battery Industry Development Conference, according to a report by local media outlet Yicai.
The battery achieves an energy density of 400 Wh/kg and maintains a cycle life of 1,200 cycles under ultra-low external pressure below 1 MPa, the report said.
Sunwoda expects to complete a 0.2 GWh pilot production line for polymer solid-state cells by year-end, the report noted.
The company has successfully developed and tested laboratory samples of lithium metal super batteries with a higher energy density of 520 Wh/kg, Yicai quoted a Sunwoda executive as saying.
On October 18, Chery Automobile (HKG: 9973) showcased an all-solid-state battery module at a technology event, boasting a cell energy density of up to 600 Wh/kg and claimed to deliver a range of 1,200-1,300 kilometers for EVs.
Chery plans to initiate the first batch of vehicle integration testing for these solid-state batteries in 2027.
Back to Sunwoda, Xu Zhongling, vice-president of research and development at the battery manufacturer, said in July last year that the company had developed all-solid-state batteries with a capacity of 20 Ah and an energy density exceeding 400 Wh/kg.
The company was constructing an all-solid-state battery production line, with mass production expected to commence in 2026 at a capacity of 1 GWh, according to a China Daily report citing Sunwoda at the time.
Sunwoda anticipated completing laboratory samples of all-solid-state batteries exceeding 700 Wh/kg in energy density by 2027, per the China Daily report.
Through technological innovation, Sunwoda anticipated reducing the cost of polymer-based all-solid-state batteries to RMB 2 ($0.281) per Wh by 2026, approaching the cost of semi-solid-state batteries.
($1 = RMB 7.1229)
