Title:
リチウムイオン二次電池
Document Type and Number:
Japanese Patent JP6973621
Kind Code:
B2
Abstract:
An object of one embodiment of the present invention is to provide a lithium-ion secondary battery with high safety in which deterioration of a separator comprising polyethylene terephthalate is suppressed even when an electrolyte solution comprising a carbonate-based solvent is used. A first lithium ion secondary battery of the present invention is a lithium ion secondary battery comprising an electrode laminate comprising a positive electrode, a negative electrode and a separator, and an electrolyte solution, wherein the negative electrode comprises a solution type binder, the separator comprises polyethylene terephthalate, and the electrolyte solution comprises a solvent comprising a compound having a carbonate group.
Inventors:
Kazuhiko Inoue
Kenichi Shimura
Kenichi Shimura
Application Number:
JP2020507872A
Publication Date:
December 01, 2021
Filing Date:
March 20, 2019
Export Citation:
Assignee:
NEC
International Classes:
H01M10/052; H01M4/62; H01M10/0567; H01M10/0569; H01M10/0585; H01M50/409; H01M50/414; H01M50/489; H01M50/491
Domestic Patent References:
| JP2014060122A | ||||
| JP2013080563A |
Attorney, Agent or Firm:
Katsuhiro Ito
Previous Patent: Polishing liquid, polishing liquid set and polishing method
Next Patent: Solid oxide fuel cell
Next Patent: Solid oxide fuel cell