公开(公告)号：US20240154091A1

公开(公告)日：2024-05-09

申请号：US18418290

申请日：2024-01-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MASAKI HIRASE ,  HIROKI YABE

IPC: H01M4/134 ,  H01M4/02 ,  H01M4/1395 ,  H01M4/62 ,  H01M10/0562

CPC classification number: H01M4/134 ,  H01M4/1395 ,  H01M4/625 ,  H01M2004/021 ,  H01M2004/027 ,  H01M10/0562 ,  H01M2300/0068

Abstract: A negative electrode material according to the present disclosure includes a plurality of composite particles including an active material containing silicon, a first solid electrolyte, and a first conductive material and a second solid electrolyte, wherein the second solid electrolyte is present between the composite particle and the composite particle.

公开(公告)号：US20240154105A1

公开(公告)日：2024-05-09

申请号：US18406080

申请日：2024-01-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MASAKI HIRASE ,  HIROKI YABE

IPC: H01M4/38 ,  H01M4/36 ,  H01M10/0525 ,  H01M10/0585

CPC classification number: H01M4/386 ,  H01M4/366 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2004/027

Abstract: A battery includes: a positive electrode; a negative electrode; and a solid electrolyte layer disposed between the positive electrode and the negative electrode, in which the negative electrode includes a first negative electrode layer and a second negative electrode layer disposed between the first negative electrode layer and the solid electrolyte layer, the first negative electrode layer and the second negative electrode layer contain silicon, and the mole ratio of lithium to silicon in the second negative electrode layer is greater than the mole ratio of lithium to silicon in the first negative electrode layer.