Title:
リチウムイオン二次電池用電極、及びリチウムイオン二次電池
Document Type and Number:
Japanese Patent JP7149355
Kind Code:
B2
Abstract:
Provided is an electrode for lithium ion secondary batteries in which an electrode material mixture is packed in porous metal, which electrode has excellent penetration of electrolyte solution and improved ion diffusivity. The electrode for lithium ion secondary batteries includes a current collector made of porous metal; and an electrode layer including an electrode material mixture including at least an electrode active material, in which the current collector is filled with the electrode material mixture, the current collector has an intermediate region and two surface regions in its thickness direction and m the electrode layer, the intermediate region has a porosity lower than that of the two surface region, and the intermediate region is filled with a first electrode active material, and the two surface regions are filled with a second electrode active material having a particle size larger than that of the first electrode active material.
Inventors:
Kiyoshi Tanaami
Toshimitsu Tanaka
Yuji Isoya
Masahiro Ohta
Takuya Taniuchi
Toshimitsu Tanaka
Yuji Isoya
Masahiro Ohta
Takuya Taniuchi
Application Number:
JP2021012761A
Publication Date:
October 06, 2022
Filing Date:
January 29, 2021
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
H01M4/13; H01M4/139; H01M4/36; H01M4/66; H01M4/80; H01M10/052; H01M10/0562
Domestic Patent References:
| JP56763A | ||||
| JP2011249261A | ||||
| JP2015005517A |
Foreign References:
| US20200212428 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Kazuyoshi
Hiroaki Hoshino
Hayashi Kazuyoshi
Hiroaki Hoshino
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