Title:
リチウムイオン二次電池
Document Type and Number:
Japanese Patent JP7021702
Kind Code:
B2
Abstract:
A lithium ion secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The positive electrode includes a positive electrode active material layer including a lithium iron phosphate. The positive electrode active material layer has a pore curvature from 50 to 120 as measured by a mercury porosimeter. The negative electrode includes a negative electrode active material layer including graphite. The negative electrode active material layer has a pore curvature from 5 to 30 as measured by the mercury porosimeter.
Inventors:
Yuichiro Hashizume
Takeshi Hayashi
Takeshi Hayashi
Application Number:
JP2020533458A
Publication Date:
February 17, 2022
Filing Date:
July 24, 2019
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01M10/0525; H01M4/133; H01M4/136; H01M4/58; H01M4/62; H01M10/0567
Domestic Patent References:
| JP2017054822A | ||||
| JP2016146329A |
Attorney, Agent or Firm:
Yamato Kento
Haruhiko Ema
Haruhiko Ema