Title:
NONAQUEOUS ELECTROLYTE POWER STORAGE ELEMENT AND POWER STORAGE DEVICE
Document Type and Number:
Japanese Patent JP2022027271
Kind Code:
A
Abstract:
To provide a nonaqueous electrolyte power storage element and a power storage device which enable the suppression of the increase in resistance at low temperature accompanying a charge/discharge cycle.SOLUTION: A nonaqueous electrolyte power storage element comprises: an electrode body 2 in which negative and positive electrodes are laminated through a separator; a nonaqueous electrolyte; and a container 3 which contains the electrode body 2. The container 3 receives a pressure in a thickness direction of the electrode body 2. The separator has an inorganic particle layer. The positive electrode has a positive electrode active material layer containing a positive electrode active material. The positive electrode active material layer is laminated on the inorganic particle layer. The positive electrode active material includes a transition metal oxide. In a lamination plane of the positive electrode active material layer with the inorganic particle layer, the percentage of elements forming the positive electrode active material to all of elements is smaller than 38 atom%.SELECTED DRAWING: Figure 1
Inventors:
YAMAKAWA YUTO
OKAJIMA TAKAFUMI
ITO YUICHI
SASAKI JO
OKAJIMA TAKAFUMI
ITO YUICHI
SASAKI JO
Application Number:
JP2020131168A
Publication Date:
February 10, 2022
Filing Date:
July 31, 2020
Export Citation:
Assignee:
GS YUASA CORP
International Classes:
H01G11/26; H01M10/058; H01G11/46; H01G11/52; H01M4/131; H01M4/62; H01M50/20; H01M50/409
Attorney, Agent or Firm:
Amano Kazunori
Katsumasa Fujimoto
Yoshinori Ikeda
Koji Ishida
Masako Matsuura
Katsumasa Fujimoto
Yoshinori Ikeda
Koji Ishida
Masako Matsuura