Title:
二次電池および電子機器
Document Type and Number:
Japanese Patent JP6727910
Kind Code:
B2
Abstract:
A secondary battery with high capacity per unit volume can be provided. A flexible secondary battery with a novel structure can be provided. A secondary battery that can be bent repeatedly can be provided. A highly reliable secondary battery can be provided. A long-life secondary battery can be provided. A secondary battery comprises an inner structure and an exterior body that surrounds the inner structure. The inner structure comprises a positive electrode and a negative electrode. The exterior body comprises a first exterior film and a second exterior film. A region comprising reduced graphene oxide lies between the first exterior film and the second exterior film. The graphene oxide preferably comprises a region where the concentration of oxygen is higher than or equal to 2 atomic percent and lower than or equal to 20 atomic percent.
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Inventors:
Ryota Tajima
Application Number:
JP2016092873A
Publication Date:
July 22, 2020
Filing Date:
May 04, 2016
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
C01B32/15; H01G11/78; H01M50/117; H01M50/121; H01M50/129; H01M50/133
Domestic Patent References:
| JP2014527687A | ||||
| JP2013211262A | ||||
| JP2013208881A | ||||
| JP2014506209A |