公开(公告)号：US20210119215A1

公开(公告)日：2021-04-22

申请号：US17251814

申请日：2019-06-27

Applicant: ZEON CORPORATION

Inventor： Yukie ITO ,  Kenya SONOBE ,  Maki MESUDA

IPC: H01M4/62 ,  H01M10/0525 ,  C08F220/14 ,  C08L25/12 ,  C08L33/20

Abstract: A binder composition contains an organic solvent and a binder that includes a particulate polymer A and a highly soluble polymer B. The particulate polymer A includes an ethylenically unsaturated acid monomer unit in a proportion of not less than 1.0 mass % and not more than 10.0 mass % and a (meth)acrylic acid ester monomer unit in a proportion of not less than 30.0 mass % and not more than 98.0 mass %. The particulate polymer A includes two particulate polymers A1 and A2 having different volume-average particle diameters. The volume-average particle diameters D50A1 and D50A2 of these particulate polymers A1 and A2 satisfy a formula: D50A2>D50A1≥50 nm.

公开(公告)号：US20170244095A1

公开(公告)日：2017-08-24

申请号：US15519161

申请日：2015-10-30

Applicant: ZEON CORPORATION

Inventor： Kenya SONOBE ,  Yasuhiro ISSHIKI ,  Masanori SHIBUYA

IPC: H01M4/133 ,  C08F220/06 ,  C09D5/24 ,  C09D133/02 ,  C09D133/26 ,  H01M4/131 ,  H01M4/36 ,  H01M4/525 ,  H01M4/48 ,  H01M4/587 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2/16 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0567 ,  C08F220/56

CPC classification number: H01M4/133 ,  C08F220/06 ,  C08F220/56 ,  C08F222/02 ,  C08K3/04 ,  C08K3/34 ,  C08K2201/001 ,  C08L33/02 ,  C08L33/26 ,  C09D5/24 ,  C09D133/02 ,  C09D133/26 ,  H01M2/1653 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/364 ,  H01M4/483 ,  H01M4/525 ,  H01M4/587 ,  H01M4/62 ,  H01M4/623 ,  H01M4/625 ,  H01M4/661 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0587 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0037 ,  C08F2222/1013 ,  C08F220/14 ,  C08F2220/585

Abstract: A material for slurry composition-use for example is a paste composition including a negative electrode active material that contains a silicon-based negative electrode active material in an amount of at least 30 mass % and a water-soluble polymer in an amount of at least 3 parts by mass and less than 500 parts by mass per 100 parts by mass of the silicon-based negative electrode active material. The water-soluble polymer includes at least 20.0 mass % and no greater than 79.5 mass % of structural units derived from an ethylenically unsaturated carboxylic acid compound (A) and at least 20.0 mass % and no greater than 79.5 mass % of structural units derived from a copolymerizable compound (B) that has an ethylenically unsaturated bond and a water solubility of at least 7 g/100 g at 20° C., and the water-soluble polymer has a degree of swelling in electrolysis solution of less than 120%.

公开(公告)号：US20160204439A1

公开(公告)日：2016-07-14

申请号：US14892290

申请日：2014-05-22

Applicant: ZEON CORPORATION

Inventor： Kenya SONOBE

IPC: H01M4/62 ,  H01M4/583 ,  C08L53/02 ,  H01M10/0525 ,  H01M4/133

CPC classification number: H01M4/622 ,  C08F212/08 ,  C08K5/16 ,  C08L1/26 ,  C08L25/10 ,  C08L33/02 ,  C08L53/02 ,  H01M4/133 ,  H01M4/583 ,  H01M10/0525 ,  H01M2004/027 ,  C08F236/06 ,  C08F222/02 ,  C08F220/20

Abstract: Provided is a secondary-battery binder composition that demonstrates superior binding capacity and can improve the electrical characteristics of secondary batteries when used to form the battery members. The disclosed binder composition contains a water-soluble thickener (A) having a hydroxy group or a carboxyl group; a cross-linking agent (B) having a carbodiimide group or an oxazoline group; and a particulate polymer (C). The particulate polymer (C) has a functional group reactive with the cross-linking agent (B), and contains an aliphatic conjugated diene monomer unit and an aromatic vinyl monomer unit. The binder composition contains 0.001 mass parts or more but less than 100 mass parts of the cross-linking agent (B) and 10 mass parts or more but less than 500 mass parts of the particulate polymer (C) per 100 mass parts of the water-soluble thickener (A).

Abstract translation: 提供了一种二次电池粘合剂组合物，其表现出优异的结合能力，并且可以在用于形成电池构件时改善二次电池的电特性。 所公开的粘合剂组合物含有具有羟基或羧基的水溶性增稠剂（A） 具有碳二亚胺基或恶唑啉基的交联剂（B）; 和粒状聚合物（C）。 粒状聚合物（C）具有与交联剂（B）反应的官能团，含有脂肪族共轭二烯单体单元和芳香族乙烯基单体单元。 粘合剂组合物含有0.001质量份以上但小于100质量份的交联剂（B），每100质量份水含有10质量份以上但小于500质量份的聚合物（C） - 可溶性增稠剂（A）。

公开(公告)号：US20160028087A1

公开(公告)日：2016-01-28

申请号：US14773333

申请日：2014-03-14

Applicant: ZEON CORPORATION

Inventor： Kenya SONOBE

IPC: H01M4/62 ,  C08F236/10 ,  H01M10/0525

CPC classification number: H01M4/622 ,  C08F236/10 ,  H01M10/0525 ,  H01M2004/8684

Abstract: A binder composition for a secondary battery includes: a water-soluble thickener (A) having a hydroxy group or a carboxy group; a cross-linking agent (B) having a functional group reacting with the hydroxy group or the carboxy group of the water-soluble thickener (A); and a particulate polymer (C). The particulate polymer (C) has a functional group reacting with the cross-linking agent (B) and includes an aliphatic conjugated diene monomer unit and an aromatic vinyl monomer unit. The binder composition contains 0.001 part by mass or more and less than 100 parts by mass of the cross-linking agent (B) and 10 parts by mass or more and less than 500 parts by mass of the particulate polymer (C), each per 100 parts by mass of the water-soluble thickener (A).

Abstract translation: 二次电池用粘合剂组合物包括：具有羟基或羧基的水溶性增稠剂（A） 具有与水溶性增稠剂（A）的羟基或羧基反应的官能团的交联剂（B）; 和粒状聚合物（C）。 颗粒聚合物（C）具有与交联剂（B）反应的官能团，并且包括脂族共轭二烯单体单元和芳族乙烯基单体单元。 粘合剂组合物含有0.001质量份以上且小于100质量份的交联剂（B）和10质量份以上且小于500质量份的粒状聚合物（C），各自为 100质量份水溶性增稠剂（A）。

公开(公告)号：US20230378465A1

公开(公告)日：2023-11-23

申请号：US18044782

申请日：2021-09-09

Applicant: ZEON CORPORATION

Inventor： Tetsuya AKABANE ,  Kenya SONOBE

IPC: H01M4/62 ,  H01M4/48 ,  C08L9/06

CPC classification number: H01M4/622 ,  H01M4/483 ,  C08L9/06 ,  H01M2004/027

Abstract: Provided is a binder composition for a non-aqueous secondary battery negative electrode with which it is possible to form a negative electrode having excellent peel strength and low tendency to swell after cycling and a secondary battery having excellent cycle characteristics. The binder composition contains a particulate binder and a dispersion medium. The particulate binder has a cross-linked structure through bonding via sulfur. The amount of sediment obtained upon centrifugation of the binder composition at a rotation speed of 110,000 rpm is less than 5.0 parts by mass when the amount of all solid content contained in the binder composition is taken to be 100 parts by mass.

公开(公告)号：US20220037632A1

公开(公告)日：2022-02-03

申请号：US17279758

申请日：2019-10-03

Applicant: ZEON CORPORATION

Inventor： Kenya SONOBE ,  Yasuhiro ISSHIKI ,  Maki MESUDA

IPC: H01M4/04 ,  H01M4/36

Abstract: A conductive paste for an electrode mixed material layer has a water content of 1,000 ppm or less. The paste contains a conductive additive, not less than 3 parts by mass and not more than 200 parts by mass of a polymer per 100 parts by mass of the conductive additive, and not less than 12 parts by mass and not more than 350 parts by mass of expandable particles per 100 parts by mass of the conductive additive. The polymer includes at least one functional group selected from the group consisting of a carboxyl group, a hydroxyl group, an amino group, an epoxy group, an oxazoline group, a sulfo group, a nitrile group, an ester group, and an amide group. The expandable particles have an initial thermal decomposition temperature of not lower than 120° C. and not higher than 400° C.

公开(公告)号：US20210066720A1

公开(公告)日：2021-03-04

申请号：US16958151

申请日：2018-12-14

Applicant: ZEON CORPORATION

Inventor： Kenya SONOBE ,  Hiroki OGURO ,  Maki MESUDA

IPC: H01M4/62 ,  H01M4/139 ,  H01M10/0525 ,  C08F236/10 ,  C08F220/18 ,  C08F236/12

Abstract: A binder composition for a secondary battery positive electrode contains a polymer including a nitrile group-containing monomer unit, an aromatic vinyl monomer unit, a hydrophilic group-containing monomer unit, a conjugated diene monomer unit, and a linear alkylene structural unit having a carbon number of 4 or more. The aromatic vinyl monomer unit is included in the polymer in a proportion of not less than 30.0 mass % and not more than 60.0 mass %. The polymer has an iodine value of not less than 60 mg/100 mg and not more than 150 mg/100 mg.

公开(公告)号：US20200220174A1

公开(公告)日：2020-07-09

申请号：US16622535

申请日：2018-06-29

Applicant: ZEON CORPORATION

Inventor： Yasuhiro ISSHIKI ,  Kenya SONOBE ,  Kazuki ASAI

IPC: H01M4/62 ,  H01M2/16 ,  H01G11/38 ,  C08K5/16 ,  C08L101/02

Abstract: Provided is a binder composition for an electrochemical device that has excellent binding capacity and is capable of forming a functional layer that can improve rate characteristics and cycle characteristics of an electrochemical device (for example, a secondary battery). The binder composition for an electrochemical device contains a binder and an organonitrogen compound. The binder is a polymer including at least one functional group selected from the group consisting of a carboxyl group, a hydroxyl group, a cyano group, an amino group, an epoxy group, an oxazoline group, an isocyanate group, and a sulfo group. The organonitrogen compound includes at least one functional group selected from the group consisting of an azo group, a hydrazino group, a hydrazo group, and a nitroso group, has a 5% mass loss temperature of 140° C. or higher, and has a molecular weight of not less than 80 and not more than 1,000.

公开(公告)号：US20180258202A1

公开(公告)日：2018-09-13

申请号：US15760771

申请日：2016-09-23

Applicant: ZEON CORPORATION

Inventor： Kenya SONOBE ,  Yusuke ADACHI

IPC: C08F20/58 ,  H01M4/139 ,  H01M4/62 ,  C08F20/64 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/88

CPC classification number: C08F20/58 ,  C08F20/64 ,  H01M4/0404 ,  H01M4/13 ,  H01M4/139 ,  H01M4/622 ,  H01M4/623 ,  H01M4/8828 ,  H01M10/0525

Abstract: A binder composition for a non-aqueous secondary battery electrode contains a water-soluble polymer including, in a proportion of at least 0.1 mass % and not more than 20 mass %, a monomer unit derived from a monomer represented by general formula (1): CH2═C(R1)—NH—R2—OH (R1 is hydrogen or an alkyl group and R2 is (CHR3)n(O(CHR3)m)l [n=1 to 10; m=1 to 4; l=0 to 3; and R3 is hydrogen or an alkyl group having a carbon number of 1 to 4]).

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％。