Title:
負極、二次電池及び電池パック
Document Type and Number:
Japanese Patent JP7463558
Kind Code:
B2
Abstract:
One embodiment of the present invention provides an electrode. This electrode is provided with an active material-containing layer. The active material-containing layer contains: secondary particles; and a fluorine-based binder and a second particulate conductive material, which are present among the secondary particles. Each one of the secondary particles contains: primary particles that serve as an active material; a first particulate conductive material; a first fibrous conductive material; and a sodium-containing cellulose binder. The total amount of the first particulate conductive material and the first fibrous conductive material contained in the secondary particles is 2.0 parts by mass or more relative to 100 parts by mass of the active material. The content of the second particulate conductive material contained in the active material-containing layer is 2.5 parts by mass or more relative to 100 parts by mass of the secondary particles.
Inventors:
Kazuhiro Yasuda
Hidetoshi Watanabe
Masataka Shikoda
Takuya Hasegawa
Naomi Nishio
Natsuki Otani
Takatoshi Kasukabe
Hidetoshi Watanabe
Masataka Shikoda
Takuya Hasegawa
Naomi Nishio
Natsuki Otani
Takatoshi Kasukabe
Application Number:
JP2022569412A
Publication Date:
April 08, 2024
Filing Date:
December 17, 2020
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H01M4/62; H01M4/13; H01M4/131; H01M4/36
Domestic Patent References:
| JP2009043514A | ||||
| JP2015502025A |
Foreign References:
| WO2018146865A1 | ||||
| WO2018110386A1 | ||||
| WO2009081704A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Suzue Patent General Office