SoftBank Corp. and Enpower Japan Corp. Successfully Develop All-Solid-State Batteries with High Energy Density Batteries achieve specific energy of 350 Wh/kg

SoftBank Corp. (hereinafter "SoftBank") and Enpower Japan Corporation (hereinafter "Enpower Japan") are conducting research and development on next-generation high-energy-density batteries intended for use in HAPS.

Up to now, we have successfully demonstrated an energy density of 520Wh/kg with liquid-based lithium metal batteries and 300Wh/kg with all-solid-state lithium metal batteries.

Recently, SoftBank and Enpower Japan have achieved an energy density of 350Wh/kg with all-solid-state lithium metal batteries through the development of solid electrolyte technology.

Please refer to the press release available below for further details.

SoftBank Corp. and Enpower Japan Corp. Successfully Develop All-Solid-State Batteries with High Energy Density Batteries achieve specific energy of 350 Wh/kg

Please find the relevant blog posts here:
Achieving Specific Energy of 350 Wh/kg in All-solid-state Battery: Homogenization Technology of Solid Electrolyte