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公开(公告)号：US11996562B2
公开(公告)日：2024-05-28
申请号：US16970380
申请日：2019-01-31
申请人： ZEON CORPORATION
发明人： Yusaku Matsuo , Kenya Sonobe
IPC分类号： H01M4/62 , C08F265/10 , C08L51/06 , H01M4/131 , H01M4/139 , H01M4/525 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/622 , C08F265/10 , C08L51/06 , H01M4/131 , H01M4/139 , H01M4/525 , H01M10/0525 , C08L2203/206 , H01M2004/028
摘要： Provided is a binder composition for a non-aqueous secondary battery electrode that can inhibit electrode swelling associated with repeated charging and discharging while also causing a secondary battery to display excellent cycle characteristics. The binder composition contains a graft copolymer having a structure in which a branch polymer is bonded to a backbone polymer. The backbone polymer includes a hydroxyl group-containing vinyl monomer unit in a proportion of not less than 5 mass % and not more than 89 mass % and has a weight-average molecular weight of not less than 1.0×106 and not more than 2.0×107. The branch polymer includes a water-soluble monomer unit that is formed from a water-soluble monomer having a solubility of not less than 0.01 g/100 g-H2O and not more than 25 g/100 g-H2O at a temperature of 20° C.
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公开(公告)号：US10985374B2
公开(公告)日：2021-04-20
申请号：US16081135
申请日：2017-03-02
申请人： ZEON CORPORATION
发明人： Yusaku Matsuo , Masanori Shibuya , Kenya Sonobe
IPC分类号： H01M4/62 , H01M4/13 , C08L101/08 , C08K3/00 , H01M4/04 , H01M4/139 , C08F220/56 , H01M10/0525
摘要： Disclosed is a binder composition for non-aqueous secondary battery electrode which comprises: a water-soluble polymer which comprises an acid group-containing monomer unit; and water, wherein the water-soluble polymer comprises the acid group-containing monomer unit in an amount of 5% to 70% by mass, and wherein the water-soluble polymer comprises water-soluble polymer particles having a radius of gyration of 200 nm or less in an amount of 95% to 100% by mass.
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公开(公告)号：US10529989B2
公开(公告)日：2020-01-07
申请号：US15500416
申请日：2015-07-23
申请人： ZEON CORPORATION
发明人： Takuya Kaneda , Kentaro Hayasaka , Yusaku Matsuo
IPC分类号： H01M4/62 , C08L9/06 , C08L33/06 , H01M10/0566 , H01M4/13 , C08L33/20 , H01M4/525 , H01M4/587 , H01M10/0525 , H01M4/02
摘要： 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.
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公开(公告)号：US11802171B2
公开(公告)日：2023-10-31
申请号：US16487576
申请日：2018-02-26
申请人： ZEON CORPORATION
发明人： Yusaku Matsuo , Norikazu Yamamoto
IPC分类号： H01M4/00 , C08F212/08 , C08L9/06 , C08L25/06 , H01M4/62 , H01M10/0525 , H01M4/1391 , H01M4/02
CPC分类号： C08F212/08 , C08L9/06 , C08L25/06 , H01M4/622 , H01M10/0525 , C08L2203/20 , H01M4/1391 , H01M2004/027
摘要： Provided is a binder composition for a non-aqueous secondary battery electrode that can ensure excellent stability of a slurry composition for a non-aqueous secondary battery electrode while also inhibiting swelling of an electrode for a non-aqueous secondary battery associated with repeated charging and discharging and causing a non-aqueous secondary battery to display excellent cycle characteristics. The binder composition contains a particulate polymer A and a particulate polymer B. The particulate polymer A is a copolymer having a block region composed of an aromatic vinyl monomer unit. The particulate polymer B is a random copolymer including an aliphatic conjugated diene monomer unit and an aromatic vinyl monomer unit.
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公开(公告)号：US11967719B2
公开(公告)日：2024-04-23
申请号：US17268957
申请日：2019-08-22
申请人： ZEON CORPORATION
发明人： Yusaku Matsuo , Kenya Sonobe
IPC分类号： H01M4/00 , H01M4/62 , H01M10/052 , H01M10/0562
CPC分类号： H01M4/622 , H01M10/052 , H01M10/0562 , H01M2300/0068
摘要： Provided is a binder composition for an all-solid-state secondary battery with which it is possible to form a solid electrolyte-containing layer that can cause an all-solid-state secondary battery to display excellent output characteristics and high-temperature cycle characteristics. The binder composition contains a polymer A that includes a nitrile group-containing monomer unit and an aliphatic conjugated diene monomer unit. The proportional content of the nitrile group-containing monomer unit in the polymer A is not less than 5 mass % and not more than 30 mass %, and the proportional content of the aliphatic conjugated diene monomer unit in the polymer A is not less than 40 mass % and not more than 95 mass %. The polymer A has a Mooney viscosity (ML1+4, 100° C.) of 65 or more.
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公开(公告)号：US11873363B2
公开(公告)日：2024-01-16
申请号：US16642899
申请日：2018-07-05
申请人： ZEON CORPORATION
发明人： Hidetake Ishii , Norikazu Yamamoto , Yusaku Matsuo
IPC分类号： H01M4/00 , C08F297/04 , H01M4/62 , H01M4/133 , H01M10/0525
CPC分类号： C08F297/046 , H01M4/62 , H01M4/622 , H01M4/133 , H01M10/0525
摘要： Provided is a binder composition for a non-aqueous secondary battery electrode capable of forming an electrode for a non-aqueous secondary battery that can cause a non-aqueous secondary battery to display excellent low-temperature cycle characteristics and low-temperature output characteristics. The binder composition for a non-aqueous secondary battery electrode contains a polymer and a solvent. The polymer is a block copolymer including an aromatic vinyl monomer unit and an aliphatic conjugated diene monomer unit having a carbon number of 5 or more. The amount of the polymer that elutes into electrolyte solution is not less than 1 mass % and not more than 20 mass %.
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公开(公告)号：US11742488B2
公开(公告)日：2023-08-29
申请号：US16757765
申请日：2018-10-19
申请人： ZEON CORPORATION
发明人： Yusaku Matsuo , Norikazu Yamamoto
CPC分类号： H01M4/622 , C08L33/064 , C08L51/006 , H01M10/0525 , C08L2203/20 , H01M2004/021
摘要： A binder composition for a non-aqueous secondary battery electrode contains a particulate polymer A and a particulate polymer B. The particulate polymer A is a block copolymer including an aromatic vinyl monomer unit and an aliphatic conjugated diene monomer unit having a carbon number of 4 or more. The particulate polymer B is a random copolymer including a (meth)acrylic acid ester monomer unit in a proportion of not less than 20.0 mass % and not more than 80.0 mass %.
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公开(公告)号：US11532817B2
公开(公告)日：2022-12-20
申请号：US16492830
申请日：2018-03-05
申请人： ZEON CORPORATION
发明人： Norikazu Yamamoto , Hidetake Ishii , Yusaku Matsuo
IPC分类号： H01M4/00 , H01M4/62 , H01M4/36 , H01M4/13 , C08L47/00 , H01M4/04 , H01M50/403 , H01M50/449
摘要： A binder composition for a non-aqueous secondary battery including: a water-insoluble polymer and a water-soluble polymer, wherein the water-insoluble polymer contains 70% by weight or more and 100% by weight or less of an aliphatic conjugated diene monomer unit, and the water-soluble polymer has a carboxy group and a hydroxy group. The water-soluble polymer preferably contains a carboxy group-containing monomer unit and a hydroxy group-containing monomer unit. Also provided are a slurry composition for a non-aqueous secondary battery, including the binder composition, an electrode, a separator, a secondary battery and methods for producing the same.
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公开(公告)号：US11374224B2
公开(公告)日：2022-06-28
申请号：US16633784
申请日：2018-08-23
申请人： ZEON CORPORATION
IPC分类号： H01M4/62 , C08F297/04 , H01M4/13 , H01M10/0525 , H01M50/411
摘要： Provided is a binder composition for a non-aqueous secondary battery with which it is possible to form a functional layer that can provide a battery component such as an electrode or a separator with a balance of excellent handleability and process adhesiveness. The binder composition for a non-aqueous secondary battery contains: polymer particles containing a block polymer including a block region composed of an aromatic vinyl monomer unit; a water-soluble polymer including a hydrophilic group; and water. The block polymer has a diblock content of not less than 0 mass % and not more than 60 mass %. The water-soluble polymer has a weight-average molecular weight of not less than 15,000 and not more than 500,000.
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公开(公告)号：US10290873B2
公开(公告)日：2019-05-14
申请号：US15503789
申请日：2015-08-26
申请人： ZEON CORPORATION
发明人： Takuya Kaneda , Kentaro Hayasaka , Yusaku Matsuo
IPC分类号： H01M4/62 , H01M10/0525 , H01M4/131 , H01M4/133 , H01M4/134 , C08F265/04 , C08F212/08 , C08L51/06 , C08L25/14 , C08L33/08 , C08J3/12 , B01J13/14 , H01M4/02
摘要： 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.
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