Sunwoda has tested a new solid-state battery prototype, Xin Bixiao, featuring a 20 Ah capacity. The cell successfully withstood temperatures up to 200 degrees Celsius without catching fire or exploding. The battery utilizes a polymer-composite structure combined with a silicon anode.
The company reports an energy density exceeding 400 Wh/kg and a lifespan surpassing 1200 charge-discharge cycles. After 1200 cycles, the battery retains over 80% of its original capacity. These metrics could theoretically enable electric vehicles to achieve a range of over 1000 kilometers.
Sunwoda is developing next-generation sulfide-based electrolyte batteries. A pre-commercial production line with a capacity of 0.2 GWh per year is planned for next year, sufficient for approximately 2600 to 2700 electric vehicles.
Research efforts also target the aviation sector, with goals to reach an energy density of at least 450 Wh/kg. For eVTOL aircraft, the company aims for a continuous discharge power density of at least 1000 W/kg.
Additionally, Sunwoda previously introduced a lithium iron phosphate battery capable of ultra-fast charging. It can add about 100 kilometers of range in one minute, charging from 10% to 70% in five minutes and up to 97% in an additional four minutes.
