Title:
リチウム二次電池
Document Type and Number:
Japanese Patent JP7289072
Kind Code:
B2
Abstract:
A lithium secondary battery includes a positive electrode, negative electrode, a separator, and a nonaqueous electrolyte having lithium-ion conductivity. The positive electrode contains a positive electrode active material containing lithium. The negative electrode faces the positive electrode. The separator is disposed between the positive and negative electrodes. The negative electrode includes a negative electrode current collector. The negative electrode current collector includes a layer having a first surface, and protrusions protruding from the first surface. The first surface is a surface on which lithium metal is deposited during charge. The protrusions do not divide the first surface into parts.
Inventors:
Ryohei Miyamae
Satoshi Kashino
Kensuke Nagura
Satoshi Kashino
Kensuke Nagura
Application Number:
JP2019076113A
Publication Date:
June 09, 2023
Filing Date:
April 12, 2019
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H01M4/70; H01M4/66; H01M10/052; H01M10/0568
Domestic Patent References:
| JP2001126717A | ||||
| JP8088022A | ||||
| JP2042366U | ||||
| JP2008258137A | ||||
| JP2005032642A | ||||
| JP2001085016A | ||||
| JP2012003970A |
Foreign References:
| KR1020160062883A |
Attorney, Agent or Firm:
Patent Attorney Kawasaki Patent Office