公开(公告)号：US10923698B2

公开(公告)日：2021-02-16

申请号：US15983070

申请日：2018-05-17

Applicant: FDK CORPORATION

Inventor： Yuya Iida ,  Yasuaki Egawa ,  Daisuke Hirata ,  Ryuji Ito ,  Akihiro Yamamoto

IPC: H01M2/08 ,  H01M6/16 ,  H01M2/16 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2/02 ,  H01M10/42

Abstract: A laminate-type power storage element includes a flat plate-shaped electrode body and an exterior body. The electrode body is configured by stacking a sheet-shaped positive electrode and a sheet-shaped negative electrode on either side of a separator. The exterior body is formed in a flattened bag-shape by thermocompression bonding peripheral edge regions of two opposing laminated films, to seal the electrode body inside the flattened bag-shape of the exterior body together with an electrolyte. The separator has a sheet-shaped substrate and at least one bonding layer formed on at least one surface of the substrate. A peripheral edge portion of the separator is sandwiched between and bonded by the two laminated films at a peripheral inside of the peripheral edge regions of the two laminated films.

公开(公告)号：US10553908B2

公开(公告)日：2020-02-04

申请号：US15645413

申请日：2017-07-10

Applicant: FDK CORPORATION

Inventor： Ryuji Ito ,  Takayuki Kumagai ,  Yuya Iida ,  Daisuke Hirata ,  Yasuaki Egawa ,  Tsukasa Mano ,  Yorinobu Murata ,  Manabu Yasuno ,  Go Taniyama

IPC: H01M10/0585 ,  H01M10/0525 ,  H01M6/14 ,  H01M2/02

Abstract: A laminated power storage element includes: an exterior body shaped into a flat bag shape by laminating a pair of laminated films to weld a peripheral edge region; an electrode body sealed within the exterior body; a positive and a negative electrode terminal portion allowed to project outside the exterior body from a predetermined margin of the exterior body; and a pair of tab films welded on surfaces where the pair of laminated films oppose one another in a region along the predetermined margin to mutually weld the pair of laminated films, and the tab film covers an end surface of the laminated film while deviating outward from the exterior body from the predetermined margin, and covers both front and back surfaces of each of a base end of the positive electrode terminal portion and a base end of the negative electrode terminal portion.

公开(公告)号：US20180337382A1

公开(公告)日：2018-11-22

申请号：US15983070

申请日：2018-05-17

Applicant: FDK CORPORATION

Inventor： Yuya Iida ,  Yasuaki Egawa ,  Daisuke Hirata ,  Ryuji Ito ,  Akihiro Yamamoto

IPC: H01M2/16 ,  H01M10/0525 ,  H01M10/0585 ,  H01M6/16 ,  H01M2/02 ,  H01M2/08

Abstract: A laminate-type power storage element includes a flat plate-shaped electrode body and an exterior body. The electrode body is configured by stacking a sheet-shaped positive electrode and a sheet-shaped negative electrode on either side of a separator. The exterior body is formed in a flattened bag-shape by thermocompression bonding peripheral edge regions of two opposing laminated films, to seal the electrode body inside the flattened bag-shape of the exterior body together with an electrolyte. The separator has a sheet-shaped substrate and at least one bonding layer formed on at least one surface of the substrate. A peripheral edge portion of the separator is sandwiched between and bonded by the two laminated films at a peripheral inside of the peripheral edge regions of the two laminated films.