公开(公告)号：US20230178751A1

公开(公告)日：2023-06-08

申请号：US17906345

申请日：2021-03-15

Applicant: ZEON CORPORATION

Inventor： Tasuku OGIHARA ,  Takuya KANEDA

IPC: H01M4/62 ,  C08L25/14

CPC classification number: H01M4/628 ,  H01M4/622 ,  C08L25/14

Abstract: Provided is a composition for an electrochemical device functional layer with which it is possible to form a functional layer for an electrochemical device that can impart excellent process adhesiveness and blocking resistance to an electrochemical device member such as an electrode or a separator and that can cause an electrochemical device to display excellent electrochemical characteristics. The composition for an electrochemical device functional layer contains a particulate polymer and a binder. The particulate polymer has a molecular weight distribution (weight-average molecular weight (Mw)/number-average molecular weight (Mn)) of not less than 1.0 and not more than 3.0.

公开(公告)号：US20170373296A1

公开(公告)日：2017-12-28

申请号：US15698497

申请日：2017-09-07

Applicant: ZEON CORPORATION

Inventor： Takuya KANEDA

IPC: H01M2/16 ,  H01M4/139 ,  H01M10/42 ,  H01M4/36 ,  H01M4/13 ,  H01M2/14 ,  H01M4/62 ,  H01M4/80 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M2/1673 ,  H01M2/145 ,  H01M2/1653 ,  H01M4/13 ,  H01M4/139 ,  H01M4/366 ,  H01M4/62 ,  H01M4/80 ,  H01M10/052 ,  H01M10/4235 ,  H01M2004/027

Abstract: A porous membrane slurry for secondary batteries including non-conductive particles, a porous membrane polymer, and an organic solvent, wherein the non-conductive particles are particles of a polymer that contains 50% by weight or more of a structural unit formed by polymerization of a (meth)acrylate, the polymer having a softening starting point or decomposition point of 175° C. or higher, and wherein the porous membrane polymer is in a non-particulate form and has a cross-linkable group. A secondary battery negative electrode, and a method for producing a secondary battery negative electrode, are also provided.

公开(公告)号：US20170256800A1

公开(公告)日：2017-09-07

申请号：US15503789

申请日：2015-08-26

Applicant: ZEON CORPORATION

Inventor： Takuya KANEDA ,  Kentaro HAYASAKA ,  Yusaku MATSUO

IPC: H01M4/62 ,  C08L33/08 ,  C08J3/12 ,  C08L25/14 ,  H01M10/0525 ,  B01J13/14

CPC classification number: H01M4/622 ,  B01J13/14 ,  C08F212/08 ,  C08F265/04 ,  C08J3/126 ,  C08J2333/08 ,  C08J2425/14 ,  C08L25/14 ,  C08L33/08 ,  C08L51/06 ,  C08L2203/20 ,  C08L2207/53 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M10/0525 ,  H01M2004/021 ,  C08F236/06 ,  C08F222/02 ,  C08F220/20 ,  C08L25/10

Abstract: Provided is a binder composition for a secondary battery electrode that can cause a secondary battery to display excellent rate characteristics and cycle characteristics. The binder composition for a secondary battery electrode contains a first particulate polymer having a core-shell structure including a core portion and a shell portion that partially covers an outer surface of the core portion.

公开(公告)号：US20150311490A1

公开(公告)日：2015-10-29

申请号：US14646701

申请日：2013-11-26

Applicant: ZEON CORPORATION

Inventor： Tomoya MURASE ,  Yujiro TOYODA ,  Takuya KANEDA

IPC: H01M2/16 ,  H01M2/14 ,  C09J133/26 ,  H01M10/0525

CPC classification number: H01M2/168 ,  C09J133/26 ,  C09J2433/003 ,  H01M2/145 ,  H01M4/139 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0525

Abstract: To provide a method for producing an electrode/separator laminate which, when producing the electrode/separator laminate by subjecting the electrode and separator with adhesive layer to thermocompression bonding, the separator and the electrode can be bonded with adequate adhesion, without detriment to ion conductivity. [Solution] This method for producing an electrode/separator laminate includes a step in which a separator with adhesive layer comprising a porous polyolefin film having an adhesive layer at least on one side, and an electrode which has an electrode active substance layer containing an electrode active substance and an electrode binder, are laminated in such a manner that the adhesive layer and the electrode active substance layer touch one another, and are subsequently subjected to thermocompression.

Abstract translation: 提供一种电极/隔板层叠体的制造方法，在通过使电极和隔膜通过粘合剂层进行热压接来制造电极/隔膜层叠体时，隔板和电极可以以足够的粘合力粘合而不损害离子传导性 。 [解决方案]电极/隔板层合体的制造方法具有以下工序：将具有粘接剂层的粘合剂层的隔膜的至少一面侧具有粘合剂层的电极和含有电极活性物质层的电极 活性物质和电极粘合剂以使粘合剂层和电极活性物质层彼此接触的方式层压，然后进行热压。

公开(公告)号：US20170214050A1

公开(公告)日：2017-07-27

申请号：US15500416

申请日：2015-07-23

Applicant: ZEON CORPORATION

Inventor： Takuya KANEDA ,  Kentaro HAYASAKA ,  Yusaku MATSUO

IPC: H01M4/62 ,  H01M4/525 ,  H01M4/587 ,  C08L33/20 ,  H01M10/0525

CPC classification number: H01M4/622 ,  C08L9/06 ,  C08L33/06 ,  C08L33/20 ,  H01M4/13 ,  H01M4/525 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0566 ,  H01M2004/021

Abstract: Provided is a binder composition for a secondary battery electrode that has excellent binding capacity and can cause a secondary battery to display excellent rate characteristics and cycle characteristics. The binder composition for a secondary battery electrode contains: a first particulate polymer having a degree of swelling in electrolysis solution of at least 400 mass % and no greater than 900 mass % and a glass transition temperature of at least −60° C. and no higher than −15° C.; a second particulate polymer having a degree of swelling in electrolysis solution of greater than 100 mass % and no greater than 200 mass % and a glass transition temperature of at least −10° C. and no higher than 30° C.; and water.

公开(公告)号：US20170062828A1

公开(公告)日：2017-03-02

申请号：US15308418

申请日：2015-06-04

Applicant: ZEON CORPORATION

Inventor： Kenya SONOBE ,  Yusuke ADACHI ,  Takuya KANEDA ,  Yasuhiro ISSHIKI

IPC: H01M4/62 ,  H01M4/587 ,  H01M4/133 ,  H01M4/134 ,  C08L33/06 ,  H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  C08L33/26 ,  C08L33/02 ,  H01M10/0525 ,  H01M4/38

CPC classification number: H01M4/622 ,  C08L33/02 ,  C08L33/066 ,  C08L33/26 ,  C08L2201/54 ,  C08L2203/20 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/139 ,  H01M4/386 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M4/623 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2010/4292

Abstract: Provided is a binder composition for lithium ion secondary battery electrode-use that reduces internal resistance of a lithium ion secondary battery while also providing the lithium ion secondary battery with excellent life characteristics. The binder composition contains a copolymer X and a solvent. The copolymer X is obtained from a monomer composition X that contains at least 20.0 mass % and no greater than 75.0 mass % of an ethylenically unsaturated carboxylic acid compound (A) composed of either or both of an ethylenically unsaturated carboxylic acid and an ethylenically unsaturated carboxylic acid salt, and at least 20.0 mass % and no greater than 75.0 mass % of a copolymerizable compound (B) that has an ethylenically unsaturated bond and a solubility of at least 7 g in 100 g of water at 20° C. The copolymer X has a degree of swelling in electrolysis solution of less than 120 mass %.

Abstract translation: 本发明提供了一种锂离子二次电池用电极用粘合剂组合物，其还能够提供锂离子二次电池的内部电阻，同时为锂离子二次电池提供优异的寿命特性。 粘合剂组合物含有共聚物X和溶剂。 共聚物X由含有至少20.0质量％且不大于75.0质量％的烯属不饱和羧酸化合物（A）的单体组合物X获得，所述烯键式不饱和羧酸化合物（A）由烯键式不饱和羧酸和烯键式不饱和羧酸 和20质量％的至少20.0质量％且不大于75.0质量％的在20℃下在100g水中具有烯属不饱和键和至少7克的溶解度的可共聚化合物（B）。共聚物X 电解液中的溶胀度小于120质量％。

公开(公告)号：US20240234949A9

公开(公告)日：2024-07-11

申请号：US18546429

申请日：2022-02-02

Applicant: ZEON CORPORATION

Inventor： Kazuki TAKAGI ,  Takuya KANEDA

IPC: H01M50/443 ,  H01M50/417 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/489

CPC classification number: H01M50/443 ,  H01M50/417 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/489

Abstract: Provided is a composition for an electrochemical device functional layer with which it is possible to form a functional layer for an electrochemical device that has excellent wet adhesiveness and that can cause an electrochemical device to display high output characteristics. The composition for an electrochemical device functional layer contains a particulate polymer having a volume-average particle diameter of not less than 0.5 μm and not more than 10 μm and a degree of swelling in electrolyte solution of 120% or less.

公开(公告)号：US20240136658A1

公开(公告)日：2024-04-25

申请号：US18546429

申请日：2022-02-02

Applicant: ZEON CORPORATION

Inventor： Kazuki TAKAGI ,  Takuya KANEDA

IPC: H01M50/443 ,  H01M50/417 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/489

CPC classification number: H01M50/443 ,  H01M50/417 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/489

Abstract: Provided is a composition for an electrochemical device functional layer with which it is possible to form a functional layer for an electrochemical device that has excellent wet adhesiveness and that can cause an electrochemical device to display high output characteristics. The composition for an electrochemical device functional layer contains a particulate polymer having a volume-average particle diameter of not less than 0.5 μm and not more than 10 μm and a degree of swelling in electrolyte solution of 120% or less.

公开(公告)号：US20230155131A1

公开(公告)日：2023-05-18

申请号：US17906285

申请日：2021-03-12

Applicant: ZEON CORPORATION

Inventor： Kazuki TAKAGI ,  Takuya KANEDA

IPC: H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/622 ,  H01M4/628 ,  H01M10/0525 ,  H01M2004/021

Abstract: A composition for an electrochemical device functional layer contains non-conductive heat-resistant particles and a particulate polymer having a particle diameter distribution value (Dv/Dn) of not less than 1.00 and less than 1.10.

公开(公告)号：US20200266408A1

公开(公告)日：2020-08-20

申请号：US16492867

申请日：2018-03-20

Applicant: ZEON CORPORATION

Inventor： Takumi SUGIMOTO ,  Takuya KANEDA ,  Kenji ARAI

IPC: H01M2/16 ,  H01M4/36 ,  H01M4/62

Abstract: Provided is a composition for a non-aqueous secondary battery functional layer that inhibits cissing in thin film application and enables formation of a functional layer that does not excessively increase the amount of metal deposited on an electrode during secondary battery charging. The composition for a functional layer contains organic particles, a binder, a wetting agent, and water. Content of the wetting agent is more than 1 part by mass and not more than 5 parts by mass per 100 parts by mass of the organic particles.