Title:
二次電池、電池パック、電子機器、電動工具及び電動車両
Document Type and Number:
Japanese Patent JP7047978
Kind Code:
B2
Abstract:
A secondary battery including an electrode wound body having a structure in which a positive electrode and a negative electrode are stacked and wound with a separator interposed therebetween, a positive electrode current collector plate, a negative electrode current collector plate and an exterior can that accommodates the electrode wound body, the positive electrode current collector plate, and the negative electrode current collector plate. The positive electrode has a first covered portion covered with a positive electrode active material layer and a positive electrode active material non-covered portion on a positive electrode foil, and the negative electrode has a second covered portion covered with a negative electrode active material layer and a negative electrode active material non-covered portion on a negative electrode foil.
Inventors:
Takahashi Masa
Application Number:
JP2021537655A
Publication Date:
April 05, 2022
Filing Date:
July 16, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01M50/538; H01M50/247; H01M50/249; H01M50/528; H01M50/533; H01M50/536
Domestic Patent References:
| JP2003203620A | ||||
| JP200640902A | ||||
| JP2007265846A | ||||
| JP2001102031A | ||||
| JP201061893A |
Foreign References:
| WO2016174811A1 | ||||
| WO2013001821A1 |
Attorney, Agent or Firm:
Takuma Sugiura
Masatomo Sugiura
Masatomo Sugiura