公开(公告)号：US20210118625A1

公开(公告)日：2021-04-22

申请号：US17050327

申请日：2019-04-25

Applicant: NITTO DENKO CORPORATION

Inventor： Masaya YANO ,  Hiroyoshi TAKE ,  Chisato GOTO ,  Kengo YAMAUCHI

IPC: H01G11/50 ,  H01G11/28

Abstract: A positive electrode 1 for a power storage device includes: an active material layer 10; a current collector 20; and an electrically conductive layer 30. The active material layer 10 includes an electrochemically active polymer 12 and an electrically conductive agent 14. The electrically conductive layer 30 is disposed between the active material layer 10 and the current collector 20 and is in contact with the active material layer 10 and the current collector 20. The electrically conductive layer 30 includes electrically conductive particles 32 and a binder 35 in contact with outer surfaces of the electrically conductive particles 32. The content of the binder in the electrically conductive layer 30 is 3% or more on a mass basis.

公开(公告)号：US20170317345A1

公开(公告)日：2017-11-02

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 ,  H01M4/137 ,  H01M4/62 ,  H01M4/60 ,  H01M4/02 ,  H01M10/052

CPC classification number: H01M4/366 ,  H01M4/137 ,  H01M4/606 ,  H01M4/62 ,  H01M10/052 ,  H01M2004/028

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：US20150318540A1

公开(公告)日：2015-11-05

申请号：US14653909

申请日：2013-12-24

Applicant: NITTO DENKO CORPORATION

Inventor： Hiroyoshi TAKE ,  Atsuko MIZUIKE ,  Aimi MATSUURA ,  Masao ABE

IPC: H01M4/137 ,  H01M4/60

CPC classification number: H01M4/137 ,  H01M4/136 ,  H01M4/1399 ,  H01M4/5825 ,  H01M4/608 ,  H01M4/624 ,  H01M10/0525 ,  H01M2004/028 ,  Y10T29/49117

Abstract: A nonaqueous electrolyte secondary battery is provided, which includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and negative electrode, and an electrolyte solution containing a supporting salt having ion conductivity, wherein the positive electrode comprises a composition containing components (a) and (b) below and satisfying a requirement (α) below, and wherein the negative electrode contains metal lithium and at least one selected from materials capable of lithium ion insertion/desorption:(a) an electrically conductive polymer; (b) a lithium salt formed by substituting a part of a polyanionic acid with lithium; and (α) a molar ratio of a lithium element content in the component (b) to a content of an element involved in a charge/discharge reaction in the component (a) is 0.1 to 1.0. Consequently, the nonaqueous electrolyte secondary battery has an excellent weight energy density and can reduce dependency on electrolyte solution amount.

Abstract translation: 提供了一种非水电解质二次电池，其包括正极，负极，设置在正极和负极之间的隔膜以及含有具有离子传导性的负载盐的电解质溶液，其中所述正极包括含有组分的组合物 （a）和（b），满足下述要求（α），其中负极含有金属锂和选自能够进行锂离子插入/解吸的材料中的至少一种：（a）导电聚合物; （b）用锂取代一部分聚阴离子形成的锂盐; 和（α）组分（b）中的锂元素含量与组分（a）中充电/放电反应中涉及的元素的含量的摩尔比为0.1至1.0。 因此，非水电解质二次电池具有优异的重量能量密度，并且可以降低对电解质溶液量的依赖性。

公开(公告)号：US20140186703A1

公开(公告)日：2014-07-03

申请号：US14140217

申请日：2013-12-24

Applicant: NITTO DENKO CORPORATION

Inventor： Yohei ANDO ,  Hiroyoshi TAKE ,  Aimi MATSUURA ,  Masao ABE ,  Yoshihiro UETANI

IPC: H01M4/60 ,  H01M4/62

CPC classification number: H01M4/606 ,  H01M4/622

Abstract: Provided is a positive electrode for a power storage device, which has an excellent discharge characteristic irrespective of an oxidized state of polyaniline as a positive active material and which is excellent in storability and handleability. The positive electrode for a power storage device includes polyaniline, where a ratio of a polyaniline oxidized body in the positive electrode is 0.01 to 75% to the entire polyaniline.

Abstract translation: 本发明提供一种电力储存装置用正极，其具有优异的放电特性，而不管作为正极活性物质的聚苯胺的氧化状态如何，其存储性和可操作性优异。 用于蓄电装置的正极包括聚苯胺，其中正电极中的聚苯胺氧化体的比例与整个聚苯胺相比为0.01至75％。

公开(公告)号：US20210233720A1

公开(公告)日：2021-07-29

申请号：US17049996

申请日：2019-04-25

Applicant: NITTO DENKO CORPORATION

Inventor： Masaya YANO ,  Hiroyoshi TAKE ,  Chisato GOTO ,  Kengo YAMAUCHI

IPC: H01G11/48 ,  H01G11/06

Abstract: A positive electrode for a power storage device includes: an active material layer; a current collector; and an electrically conductive layer. The active material layer includes an electrochemically active polymer and an electrically conductive agent. The electrically conductive layer is disposed between the active material layer and the current collector and is in contact with the active material layer and the current collector. The thickness of the electrically conductive layer is measured at 10 points spaced apart at 2 μm intervals along a boundary between the current collector and the electrically conductive layer on a cross-section of the positive electrode for a power storage device. The cross-section is perpendicular to a principal surface of the current collector, and the electrically conductive layer is in contact with the principal surface. The average thickness of the electrically conductive layer determined by this measurement is 0.5 to 3.0 μm.

公开(公告)号：US20150340698A1

公开(公告)日：2015-11-26

申请号：US14654587

申请日：2013-12-24

Applicant: NITTO DENKO CORPORATION

Inventor： Hiroyoshi TAKE ,  Aimi MATSUURA ,  Yohei ANDO

IPC: H01M4/62 ,  H01M10/04 ,  H01M10/0585 ,  H01M4/13 ,  H01M10/0525

CPC classification number: H01M4/624 ,  H01G11/48 ,  H01M4/13 ,  H01M4/137 ,  H01M4/1399 ,  H01M4/608 ,  H01M4/62 ,  H01M4/622 ,  H01M4/625 ,  H01M10/0413 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/13 ,  Y02T10/7011 ,  Y02T10/7022 ,  Y10T29/4911

Abstract: A positive electrode for a nonaqueous electrolyte secondary battery containing an electrically conductive polymer (a), at least one of a polyanionic acid and a metal salt thereof (b), and a plasticizer (c), wherein the nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolyte solution having ion conductivity. The positive electrode has excellent peeling resistance and bending durability, and the nonaqueous electrolyte secondary battery having an excellent weight energy density and low dependency on electrolyte solution amount is provided.

Abstract translation: 一种含有导电性聚合物（a），聚阴离子酸及其金属盐（b）和增塑剂（c）中的至少一种的非水电解质二次电池用正极，其中，所述非水电解质二次电池具有阳性 电极，负极，设置在正极和负极之间的隔膜以及具有离子传导性的电解液。 正极具有优异的耐剥离性和弯曲耐久性，并且提供了具有优异的重量能量密度和对电解质溶液量的低依赖性的非水电解质二次电池。

公开(公告)号：US20150325857A1

公开(公告)日：2015-11-12

申请号：US14443776

申请日：2013-12-10

Applicant: NITTO DENKO CORPORATION

Inventor： Hiroyoshi TAKE ,  Yuki KAJISA ,  Masao ABE ,  Yoshihiro UETANI

IPC: H01M4/60 ,  H01M10/058 ,  H01M10/0525 ,  H01M4/36 ,  H01M10/0568 ,  H01M4/587

CPC classification number: H01M4/602 ,  H01M4/137 ,  H01M4/364 ,  H01M4/366 ,  H01M4/587 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/058 ,  H01M2220/30 ,  H01M2300/0025 ,  Y02T10/7011 ,  Y10T29/4911

Abstract: A nonaqueous electrolyte secondary battery is provided, which includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolyte solution containing a supporting salt having ionic conductivity, wherein the positive electrode contains an electrically conductive polymer, the negative electrode contains a carbonaceous material capable of lithium ion insertion/desertion, and the electrolyte solution contains a negative electrode film-forming agent. Consequently, the nonaqueous electrolyte secondary battery, which uses the electrically conductive polymer in the positive electrode and the carbonaceous material in the negative electrode, has an excellent weight energy density and can effectively suppress deterioration of battery performance.

Abstract translation: 提供了一种非水电解质二次电池，其包括正极，负极，设置在正极和负极之间的隔膜以及含有具有离子导电性的支撑盐的电解质溶液，其中所述正极包含导电 聚合物，负极含有能够进行锂离子插入/脱盐的碳质材料，电解液含有负极成膜剂。 因此，使用正极中的导电性聚合物和负极中的碳质材料的非水电解质二次电池具有优异的重量能量密度，能够有效地抑制电池性能的劣化。

公开(公告)号：US20210328223A1

公开(公告)日：2021-10-21

申请号：US17255859

申请日：2019-06-25

Applicant: NITTO DENKO CORPORATION

Inventor： Chisato GOTO ,  Masaya YANO ,  Hiroyoshi TAKE

IPC: H01M4/60 ,  H01M10/0525 ,  H01M4/62 ,  H01M10/0567

Abstract: An active material (1) for a positive electrode includes an aggregate (10) of an electrochemically active polymer having an oxidized repeat unit and a reduced repeat unit. The aggregate (10) includes a first portion (11) forming a surface of the aggregate 10 and a second portion 12 covered by the first portion 11. In the active material 1, the percentage content of the oxidized repeat unit in the first portion 11 on a weight basis is lower than the percentage content of the oxidized repeat unit in the second portion 12 on a weight basis.

公开(公告)号：US20210193399A1

公开(公告)日：2021-06-24

申请号：US17050501

申请日：2019-04-25

Applicant: NITTO DENKO CORPORATION

Inventor： Masaya YANO ,  Hiroyoshi TAKE ,  Chisato GOTO ,  Kengo YAMAUCHI

IPC: H01G11/48 ,  H01G11/06 ,  H01G11/28 ,  H01G11/32 ,  H01G11/50

Abstract: A positive electrode 1 for a power storage device includes: an active material layer 10; a current collector 20; and an electrically conductive layer 30. The active material layer 10 includes electrochemically active polymer particles 12 and an electrically conductive agent 14. The electrochemically active polymer particles 12 have an average particle diameter of more than 0.5 μm and 20 μm or less. The electrically conductive layer 30 is disposed between the active material layer 10 and the current collector 20 and is in contact with the active material layer 10 and the current collector 20.

公开(公告)号：US20150303475A1

公开(公告)日：2015-10-22

申请号：US14646452

申请日：2013-12-19

Applicant: NITTO DENKO CORPORATION

Inventor： Masao ABE ,  Hiroyoshi TAKE ,  Akira OTANI ,  Yoshihiro UETANI

IPC: H01M4/60

CPC classification number: H01M4/602 ,  H01M10/052 ,  Y02T10/7011

Abstract: In order to achieve a novel power storage device having high-speed charge/discharge and a high capacity density, an electrode which is used in the power storage device, and a porous sheet, the present invention provides a power storage device which includes an electrolyte layer 3, and a positive electrode 2 and a negative electrode 4 that are arranged with the electrolyte layer 3 interposed therebetween, wherein at least one of the positive electrode 2 and the negative electrode 4 contains a self-doping electrically conductive polymer having a carboxylic acid group.

Abstract translation: 为了实现具有高速充放电和高容量密度的新型蓄电装置，用于蓄电装置的电极和多孔片，本发明提供一种蓄电装置，其包括电解液 层3以及设置有电解质层3的正极2和负极4，其中正极2和负极4中的至少一个包含具有羧酸的自掺杂导电聚合物 组。