Title:
非水電解質二次電池
Document Type and Number:
Japanese Patent JP7022946
Kind Code:
B2
Abstract:
The present invention relates to a non-aqueous electrolyte secondary cell comprising: a positive electrode having a positive electrode mixture layer that contains a first positive-electrode active material and a second positive-electrode active material; a negative electrode containing a lithium-titanium composite oxide as a negative-electrode active material; and a non-aqueous electrolyte. The volume per mass of pores in the first positive-electrode active material having a pore diameter of 100 nm or less is four or more times the volume per mass of pores in the second positive-electrode active material having a pore diameter of 100 nm or less. The content of the first positive-electrode active material is 30 mass % or less with respect to the total amount of the first positive-electrode active material and the second positive-electrode active material.
Inventors:
Yasunori Baba
Takashi God
New name Fumiharu
Yanagita
Takashi God
New name Fumiharu
Yanagita
Application Number:
JP2018547609A
Publication Date:
February 21, 2022
Filing Date:
October 19, 2017
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H01M10/0525; H01M4/131; H01M4/36; H01M4/485; H01M4/525
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office