公开(公告)号：US10553899B2

公开(公告)日：2020-02-04

申请号：US15063458

申请日：2016-03-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Izuru Sasaki ,  Kensuke Nakura

IPC: H01M4/62 ,  H01M10/0565 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/056 ,  H01M4/131 ,  H01M10/0562 ,  H01M4/133 ,  H01M4/36 ,  H01M4/583 ,  H01M4/587

Abstract: A battery has a cathode, an anode, and a first solid electrolyte. The cathode contains a particle of a cathode active material, and the anode contains a particle of an anode active material. The first solid electrolyte is disposed between the cathode and the anode. At least one of the surface of the particle of the cathode active material and the surface of the particle of the anode active material is coated with a polyether-based organic solid electrolyte. The polyether-based organic solid electrolyte is in contact with the first solid electrolyte. The polyether-based organic solid electrolyte is a compound of a polymer having an ether bond and an electrolytic salt.

公开(公告)号：US10388986B2

公开(公告)日：2019-08-20

申请号：US15484390

申请日：2017-04-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Izuru Sasaki ,  Junichi Hibino

IPC: H01M10/0562 ,  H01M4/62 ,  H01M4/131 ,  H01M4/525 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/052 ,  H01M4/02

Abstract: A sulfide solid electrolyte material includes a sulfide phase containing a sulfide material and an oxide phase containing an oxide formed by oxidation of the sulfide material. The oxide phase is located on a surface of the sulfide phase. The sulfide solid electrolyte material satisfies conditions: 1.28≤x≤4.06 and x/y≥2.60, where x denotes the oxygen-to-sulfur elemental ratio measured by XPS depth profiling at the outermost surface of the oxide phase; and y denotes the oxygen-to-sulfur elemental ratio measured by XPS depth profiling at a position 32 nm, estimated from the SiO2 sputtering rate, away from the outermost surface of the oxide phase.