WeLion新能源正在加快半固态及全固态电池技术的商业应用步伐。公司2023年与蔚来合作推出首款半固态电池包，能量密度达360wh/kg，超过传统锂离子电池平均水平的200wh/kg，但当时仅生产约200套1。到2025年，WeLion在实验室环境中测试的半固态电池能量密度已突破824wh/kg，是标准锂离子电池的三倍多1。
公司多条产品线正在推进中。计划年底前推出无人机用半固态电池，能量密度为410wh/kg1，并计划2026年10月在浙江湖州部署两艘内陆货轮，使用WeLion电池作为动力源，单个电池包容量约4000千瓦时，续航距离为250公里1。更进一步，公司计划2027年推出首款全固态电池汽车产品，能量密度达400wh/kg1。
在产能方面，WeLion当前年产能为11GWh，分布于四个中国生产基地，另有两家工厂在建，建成后合计年产能将达18GWh1。公司创始人包括中国科学院院士陈立泉，他曾于1988年领导中国第一块全固态电池的开发1。
WeLion New Energy is developing advanced battery technologies to enhance energy density and safety across multiple applications. In 2023, the company partnered with NIO to introduce a semi-solid-state battery pack with an energy density of 360 watt-hours per kilogram, exceeding the average of 200 watt-hours per kilogram for conventional lithium-ion batteries, though production remained limited to approximately 200 units.1 By 2025, WeLion's laboratory testing demonstrated semi-solid-state batteries achieving 824 watt-hours per kilogram—more than three times that of standard lithium-ion batteries.1
The company has outlined an ambitious product roadmap across multiple sectors. It plans to launch semi-solid-state batteries for drones with an energy density of 410 watt-hours per kilogram before year-end.1 WeLion aims to introduce its first solid-state battery electric vehicles in 2027 with an energy density of 400 watt-hours per kilogram.1 Beyond transportation, WeLion has partnered with two inland cargo vessels scheduled to operate using WeLion batteries in Huzhou, Zhejiang in October 2026, with individual battery packs rated at approximately 4,000 kilowatt-hours and providing a range of 250 kilometers.1
To support its expansion, WeLion currently operates four production facilities in China with an annual capacity of 11 gigawatt-hours.1 The company is constructing two additional factories that will bring total annual capacity to 18 gigawatt-hours.1 WeLion was founded by Chen Liquan, an academician of the Chinese Academy of Sciences who led the development of China's first solid-state battery in 1988.1
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