Title:
蓄電素子
Document Type and Number:
Japanese Patent JP7117188
Kind Code:
B2
Abstract:
To provide a laminate type power storage element having capacity capable of being increased without reducing performance by suppressing a positional deviation of an electrode body inside an exterior body without adding a new manufacturing process.SOLUTION: A power storage element 1 includes an electrode body 2 that is composed of a vertically laminated tabular positive electrode 4 and a tabular negative electrode 8, the electrode body stored in a flat bag-shaped exterior body 12 composed of laminate films (13a, 13b). The electrode body includes a collector 7 arranged on at least one of a top layer and an undermost layer. A laminate film facing the collector in the exterior body is made by laminating a heat seal layer 31 on one principal surface of metal foil 32 via an adhesion layer 34. The exterior body is made by performing heat welding on peripheral regions 14 of the laminate films laminated in a state in which heat seal layers are caused to vertically face each other. The electrode body is disposed in a region surrounded by the peripheral regions and heat welding on the heat seal layer is performed on the collector.SELECTED DRAWING: Figure 4
Inventors:
Ryuji Ito
Daisuke Hirata
Yasuaki Egawa
Misako Ikeyama
Daisuke Hirata
Yasuaki Egawa
Misako Ikeyama
Application Number:
JP2018149395A
Publication Date:
August 12, 2022
Filing Date:
August 08, 2018
Export Citation:
Assignee:
FDK Corporation
International Classes:
H01M6/16; H01G11/66; H01G11/78; H01G11/80; H01G11/84; H01M4/13; H01M4/134; H01M4/66; H01M10/052; H01M10/0585; H01M50/105; H01M50/121; H01M50/129
Domestic Patent References:
| JP58125360U | ||||
| JP2011134690A | ||||
| JP2013105679A | ||||
| JP59180962A | ||||
| JP2018032547A | ||||
| JP2017069203A |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation