公开(公告)号：US10930926B2

公开(公告)日：2021-02-23

申请号：US15643001

申请日：2017-07-06

Applicant: NITTO DENKO CORPORATION

Inventor： Masao Abe ,  Akira Otani ,  Yujiro Kawashima ,  Yoshihiro Uetani ,  Hiroyoshi Take ,  Yutaka Kishii ,  Aimi Matsuura ,  Yuki Kajisa ,  Yohei Ando

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/60 ,  H01M4/137 ,  H01M10/052 ,  H01M4/02

Abstract: The invention provides a cathode sheet for use in a nonaqueous electrolyte secondary battery, including a composite material comprising a collector and a layer of a cathode active material provided thereon. The layer of a cathode active material includes: (a) a conductive polymer and (b) at least one selected from a polycarboxylic acid and a metal salt of a polycarboxylic acid; and the conductive polymer is a polymer in a dedoped state or in a dedoped and reduced state. The polymer constituting the conductive polymer is at least one selected from polyaniline, a polyaniline derivative, polypyrrole, a polypyrrole derivative, and polythiophene; and the polycarboxylic acid is at least one selected from polyacrylic acid, polymethacrylic acid, polyvinylbenzoic acid, polyallylbenzoic acid, polymethallylbenzoic acid, polymaleic acid, polyfumaric acid, polyglutaminic acid, polyaspartic acid, alginic acid, carboxymethylcellulose, and a copolymer including repeating units of at least two of the polymers listed herein.

公开(公告)号：US09882208B2

公开(公告)日：2018-01-30

申请号：US14441563

申请日：2013-11-12

Applicant: NITTO DENKO CORPORATION

Inventor： Yohei Ando ,  Yoshihiro Uetani

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/60 ,  H01M10/05 ,  H01G11/42 ,  H01G11/48 ,  H01M10/052 ,  H01M4/02 ,  C08G73/02 ,  C08L79/02

CPC classification number: H01M4/366 ,  C08G73/0266 ,  C08L79/02 ,  H01G11/42 ,  H01G11/48 ,  H01M4/606 ,  H01M4/622 ,  H01M4/625 ,  H01M10/05 ,  H01M10/052 ,  H01M2004/028 ,  H01M2220/30 ,  Y02E60/13

Abstract: A particulate active material for a power storage device positive electrode having a higher energy density is provided, which includes particles of an electrically conductive polymer and a conductive agent, wherein the electrically conductive polymer particles each have a surface coated with the conductive agent.

公开(公告)号：US10734645B2

公开(公告)日：2020-08-04

申请号：US15841783

申请日：2017-12-14

Applicant: NITTO DENKO CORPORATION

Inventor： Yohei Ando ,  Yoshihiro Uetani

IPC: H01M4/36 ,  H01M4/60 ,  H01M4/62 ,  H01G11/42 ,  H01G11/48 ,  H01M10/05 ,  H01M10/052 ,  C08G73/02 ,  C08L79/02 ,  H01M4/02

Abstract: A particulate active material for a power storage device positive electrode having a higher energy density is provided, which includes particles of an electrically conductive polymer and a conductive agent, wherein the electrically conductive polymer particles each have a surface coated with the conductive agent.

公开(公告)号：US09340653B2

公开(公告)日：2016-05-17

申请号：US14728464

申请日：2015-06-02

Applicant: NITTO DENKO CORPORATION

Inventor： Shunsuke Noumi ,  Tomoaki Ichikawa ,  Shinichi Ooizumi ,  Yoshihiro Uetani ,  Masaki Ujihara

IPC: H01M2/16 ,  C08J5/18 ,  B29C55/00 ,  B29C71/04 ,  C08J7/12 ,  H01M2/14 ,  B29C35/08 ,  B29K23/00 ,  B29K105/04 ,  H01M10/052 ,  B29L7/00

CPC classification number: C08J5/18 ,  B29C55/005 ,  B29C71/04 ,  B29C2035/0827 ,  B29K2023/00 ,  B29K2023/0683 ,  B29K2105/04 ,  B29L2007/002 ,  C08J7/123 ,  C08J2323/02 ,  C08J2323/06 ,  C08J2423/16 ,  C08J2423/26 ,  H01M2/145 ,  H01M2/1653 ,  H01M10/052

Abstract: The method for producing a porous film of the present invention includes producing a stretched film by stretching a resin sheet containing at least polyolefin, and then irradiating the stretched film with a vacuum ultraviolet ray. The separator for a non-aqueous electrolyte battery of the present invention is composed of the porous film obtained by the production method of the present invention. The non-aqueous electrolyte battery of the present invention is provided with the separator for a non-aqueous electrolyte battery of the present invention.

公开(公告)号：US20150235777A1

公开(公告)日：2015-08-20

申请号：US14417862

申请日：2013-08-07

Applicant: NITTO DENKO CORPORATION

Inventor： Yohei Ando ,  Yutaka Kishii ,  Masao Abe ,  Yoshihiro Uetani ,  Hiroyoshi Take ,  Atsuko Mizuike

IPC: H01G11/42 ,  C08G73/02 ,  H01G11/66 ,  H01M4/60 ,  H01G11/04 ,  H01G11/28

CPC classification number: H01G11/42 ,  C08G73/0266 ,  H01G11/04 ,  H01G11/24 ,  H01G11/28 ,  H01G11/48 ,  H01G11/66 ,  H01G11/86 ,  H01M4/137 ,  H01M4/1399 ,  H01M4/60 ,  H01M4/606 ,  Y02E60/13 ,  Y02T10/7022

Abstract: A higher performance positive electrode for a power storage device is provided, which ensures a higher capacity density per unit weight of an active substance and, particularly, a higher initial capacity in initial charge/discharge. The power storage device positive electrode includes electrically conductive polymer particles as an active substance, and the electrically conductive polymer particles each have a flat shape.

Abstract translation: 提供了一种用于蓄电装置的更高性能的正极，其确保了每单位重量的活性物质的更高的容量密度，特别是初始充电/放电中的较高初始容量。 蓄电装置正极包括作为活性物质的导电性聚合物粒子，导电性聚合物粒子各自具有扁平形状。

公开(公告)号：US20150162613A1

公开(公告)日：2015-06-11

申请号：US14418005

申请日：2013-08-07

Applicant: NITTO DENKO CORPORATION

Inventor： Yohei Ando ,  Yutaka Kishii ,  Masao Abe ,  Yoshihiro Uetani

IPC: H01M4/60 ,  B02C19/06 ,  H01M4/04

CPC classification number: H01M4/606 ,  B02C19/06 ,  H01M4/0404 ,  H01M4/0433 ,  H01M4/1399 ,  H01M2004/028

Abstract: A power storage device positive electrode which ensures development of a higher capacity at the initial stage of a charge/discharge process and a higher capacity density is provided. The power storage device positive electrode contains an electrically conductive polymer as a positive electrode substance, where the electrically conductive polymer is present in a particulate form having a median diameter of not greater than 5 μm.

Abstract translation: 提供一种蓄电装置正极，其确保在充电/放电过程的初始阶段发展更高的容量和更高的容量密度。 蓄电装置正极含有作为正极物质的导电性聚合物，其中导电性聚合物以中值粒径不大于5μm的颗粒形式存在。