公开(公告)号：US20220013764A1

公开(公告)日：2022-01-13

申请号：US17295008

申请日：2019-11-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUSUKE NAKAMURA ,  HIDEO SAKATA ,  TOSHIAKI SHIMIZU

IPC: H01M4/133 ,  H01M4/62 ,  H01M4/1393 ,  H01M4/04 ,  H01M4/60 ,  H01M4/587 ,  H01M4/137 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/42 ,  H01G11/06 ,  H01G11/50 ,  H01G11/32 ,  H01G11/52 ,  H01G11/48 ,  H01G11/62 ,  H01G11/86

Abstract: A electrochemical device negative electrode includes: a negative electrode core material; and a negative electrode material layer supported on the negative electrode core material. The negative electrode material layer contains a carbon material. And a surface layer portion of the negative electrode material layer has a lithium carbonate-containing region.

公开(公告)号：US20220115699A1

公开(公告)日：2022-04-14

申请号：US17422423

申请日：2020-01-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIDEO SAKATA ,  NAO MATSUMURA ,  HIDEKI SHIMAMOTO ,  TOSHIAKI SHIMIZU

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/0525 ,  H01M10/0568 ,  H01M4/60

Abstract: An electrochemical device includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolytic solution. The positive electrode active material includes a conductive polymer, and the electrolytic solution contains anions and cations. The conductive polymer is capable of doping and dedoping of the anions. The cations includes a lithium ion and a quaternary ammonium ion.