Title:
SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2020155422
Kind Code:
A
Abstract:
To provide a secondary battery suitable for a portable information terminal or a wearable device, or to provide an electronic device having various appearance configurations and a new structure and a secondary battery suitable for the appearance configurations.SOLUTION: A secondary battery is sealed by using a film having recessed parts or protruding parts for relaxing stress of the film that is generated by an external force being applied thereto. A pattern comprising the recessed parts or the protruding parts is formed in the film by press working, for example, embossing.SELECTED DRAWING: Figure 8
Inventors:
TAKAHASHI MINORU
TAJIMA RYOTA
TAJIMA RYOTA
Application Number:
JP2020111442A
Publication Date:
September 24, 2020
Filing Date:
June 29, 2020
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB CO LTD
International Classes:
H01M10/0585; H01M10/04; H01M10/0566; H01M50/116; H01M50/119; H01M50/121; H01M50/122; H01M50/124; H01M50/136
Domestic Patent References:
| JP2000173559A | 2000-06-23 | |||
| JP2011100623A | 2011-05-19 |
Foreign References:
| WO2012140709A1 | 2012-10-18 | |||
| DE102012213111A1 | 2014-01-30 |