公开(公告)号：US20190386302A1

公开(公告)日：2019-12-19

申请号：US16479244

申请日：2017-12-01

Applicant: SHOWA DENKO K.K.

Inventor： Takaki YASUDA ,  Akira SAKAWAKI ,  Tatsunori SHINO

IPC: H01M4/505 ,  H01M4/131 ,  H01M10/0525 ,  H01M10/0562

Abstract: A lithium-ion rechargeable battery (1) composed of a positive electrode layer (20), a solid electrolyte layer (30), a negative electrode layer (40) and a negative electrode collector layer (50) that are stacked on a substrate (10). The positive electrode layer (20) is made of lithium manganate (Li2.5Mn2O4) having a lithium molar ratio higher than that of a stoichiometric composition.