Title:
ELECTRICITY STORAGE ELEMENT, METHOD FOR PRODUCING SAME AND ELECTRICITY STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/200431
Kind Code:
A1
Abstract:
An electricity storage element according to one embodiment of the present invention is provided with: an electrode body that comprises a positive electrode, a negative electrode and a separator; a nonaqueous electrolyte; and a container that contains the electrode body and the nonaqueous electrolyte. The positive electrode contains a positive electrode active material; the positive electrode active material contains a plurality of particles that satisfy at least one of the conditions (1) and (2) described below; and the electrode body is in a pressed state. (1) A plurality of primary particles that do not form secondary particles
(2) A plurality of secondary particles, each of which is formed of a plurality of aggregated primary particles, wherein the ratio of the average diameter of the secondary particles to the average diameter of the primary particles that form the secondary particles is less than 11
Inventors:
YAMATANI NORIO (JP)
Application Number:
PCT/JP2021/012131
Publication Date:
October 07, 2021
Filing Date:
March 24, 2021
Export Citation:
Assignee:
GS YUASA INT LTD (JP)
International Classes:
H01M4/13; H01G11/10; H01G11/24; H01G11/30; H01G11/82; H01G11/86; H01M4/139; H01M4/525; H01M10/052; H01M10/058
Domestic Patent References:
| WO2021040033A1 | 2021-03-04 |
Foreign References:
| JP2016157677A | 2016-09-01 | |||
| JP2005166480A | 2005-06-23 | |||
| JP2020021546A | 2020-02-06 |
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