Title:
POWER STORAGE DEVICE AND METHOD FOR MANUFACTURING POWER STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/100815
Kind Code:
A1
Abstract:
Disclosed is a power storage device (200) which includes an electrode group having a positive electrode (10), a negative electrode (20), and a separator (30). In the electrode group, the positive electrode (10), the negative electrode (20), and the separator (30) are laminated in the (lamination direction) such that the separator (30) is disposed between the positive electrode (10) and the negative electrode (20). The positive electrode (10) has a positive electrode current collector and a positive electrode active material layer that is disposed on the positive electrode current collector. The negative electrode (20) has a negative electrode current collector and a negative electrode active material layer that is disposed on the negative electrode current collector. The separator (30) has protrusion parts (30x) protruding, in a direction perpendicular to the lamination direction, from a region in which the positive electrode active material layer and the negative electrode active material layer are opposite to each other. At least some of the protrusion parts (30x) have curled sections (30xa) being curled at ends of the protrusion parts (30x).
Inventors:
SAKAMOTO SHINICHI
KOZUKI KIYOMI
GESHI SHINYA
KOZUKI KIYOMI
GESHI SHINYA
Application Number:
PCT/JP2022/043799
Publication Date:
June 08, 2023
Filing Date:
November 28, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01G11/06; H01M50/586; H01G11/52; H01G11/70; H01G11/84; H01M4/66; H01M10/04; H01M10/0525; H01M10/058; H01M10/0585; H01M10/0587; H01M50/449; H01M50/451; H01M50/457; H01M50/46; H01M50/463; H01M50/533; H01M50/536; H01M50/54; H01M50/59; H01M50/593
Domestic Patent References:
| WO2016133095A1 | 2016-08-25 |
Foreign References:
| JP2017084539A | 2017-05-18 | |||
| JP2016115410A | 2016-06-23 | |||
| JP2017126471A | 2017-07-20 | |||
| JP2016171050A | 2016-09-23 | |||
| JP2020053150A | 2020-04-02 |
Attorney, Agent or Firm:
KAWASAKI & PARTNERS (JP)
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