Title:
リチウムイオン電池用負極及びリチウムイオン電池
Document Type and Number:
Japanese Patent JP7356232
Kind Code:
B2
Abstract:
To provide a negative electrode for a lithium ion battery, which is superior in cycle characteristic, and a lithium ion battery which uses the negative electrode.SOLUTION: A negative electrode 1 for a lithium ion battery comprises: a negative electrode current collector 10; and a negative electrode active material layer 20 composed of a non-binding body containing negative electrode active material particles 30 and a conductive assistant agent 40 and formed on the negative electrode current collector. The negative electrode active material particles contain silicon and/or silicon compound particles. The conductive assistant agent is such a conductive carbon filler that the average value of the maximum Feret diameter of unit particles is 0.001-0.1 times the volume average particle diameter of the negative electrode active material particles in a conductive assistant agent projection image obtained by a method compliant with JIS Z8827-1:2008. The content of the conductive assistant agent in the negative electrode active material layer is 5-25 wt% to a total weight of the negative electrode active material particles and the conductive assistant agent.SELECTED DRAWING: Figure 1
Inventors:
Yusuke Nakajima
Kazuya Minami
Nomi Fukuyama
Kusachi Yuuki
Ken Akizuki
Hajime Sato
Hiroshi Akama
Hideaki Horie
Kazuya Minami
Nomi Fukuyama
Kusachi Yuuki
Ken Akizuki
Hajime Sato
Hiroshi Akama
Hideaki Horie
Application Number:
JP2019038486A
Publication Date:
October 04, 2023
Filing Date:
March 04, 2019
Export Citation:
Assignee:
SANYO CHEMICAL INDUSTRIES,LTD.
Nissan Motor Co., Ltd
Nissan Motor Co., Ltd
International Classes:
H01M4/13; H01M4/134; H01M4/38; H01M4/48; H01M4/62
Domestic Patent References:
| JP2017147222A | ||||
| JP2016115636A | ||||
| JP2016058283A | ||||
| JP2013120710A | ||||
| JP2014011028A |
Foreign References:
| WO2013042419A1 |
Attorney, Agent or Firm:
Patent Attorney Firm WisePlus