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公开(公告)号：US11929507B2
公开(公告)日：2024-03-12
申请号：US17251814
申请日：2019-06-27
申请人： ZEON CORPORATION
发明人： Yukie Ito , Kenya Sonobe , Maki Mesuda
IPC分类号： H01M4/62 , C08F220/14 , C08L25/12 , C08L33/20 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/622 , C08F220/14 , C08L25/12 , C08L33/20 , H01M10/0525 , C08F2800/20 , H01M2004/021
摘要： 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.
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2.发明授权公开(公告)号：US09583768B2
公开(公告)日：2017-02-28
申请号：US14403698
申请日：2013-06-21
申请人： ZEON CORPORATION
IPC分类号： H01M4/62 , H01M4/133 , H01M4/48 , H01M4/587 , H01M4/36 , H01M4/38 , H01M4/583 , H01M10/0525 , H01M4/04 , H01M4/485 , H01M10/052
CPC分类号： H01M4/622 , H01M4/0404 , H01M4/133 , H01M4/364 , H01M4/366 , H01M4/386 , H01M4/48 , H01M4/485 , H01M4/583 , H01M4/587 , H01M4/625 , H01M10/052 , H01M10/0525 , H01M2220/30
摘要： Provided is a negative electrode slurry composition including a binder resin, a water-soluble polymer, and a negative electrode active material, wherein the binder resin including (A) a styrene-butadiene copolymer latex having a gel amount of 70 to 98% and a glass transition temperature of −30° C. to 60° C. in dynamic viscoelasticity measurement and (B) an acryl polymer latex having a gel amount of 70 to 98% and a glass transition temperature of −100° C. to 0° C. in dynamic viscoelasticity measurement, and the negative electrode active material including a carbon-based active material and a silicon-based active material.
摘要翻译： 本发明提供包含粘合剂树脂，水溶性聚合物和负极活性物质的负极浆料组合物，其中，包含（A）凝胶量为70〜98％的苯乙烯 - 丁二烯共聚物胶乳和 玻璃化转变温度为-30℃至60℃，动态粘弹性测量和（B）丙烯酸聚合物胶乳的凝胶量为70-98％，玻璃化转变温度为-100℃至0℃ 在动态粘弹性测量中，并且负极活性材料包括碳基活性材料和硅基活性材料。
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公开(公告)号：US11387463B2
公开(公告)日：2022-07-12
申请号：US16629564
申请日：2018-07-17
申请人： ZEON CORPORATION
发明人： Yasuhiro Isshiki , Kenya Sonobe
摘要： Provided is an electrode for an electrochemical device that has excellent peel strength and can ensure a high level of safety of an electrochemical device. The electrode for an electrochemical device includes a current collector and an electrode mixed material layer on the current collector. The electrode mixed material layer contains an electrode active material, a binder, and a foaming agent. The binder is a polymer including a diene monomer unit and/or nitrile group-containing monomer unit, and in which the total proportion constituted by the diene monomer unit and nitrile group-containing monomer unit is 10 mass % to 80 mass %. Volume resistivity RA of a laminate of the electrode mixed material layer and current collector at 25° C. is 0.1 Ω·cm to 200 Ω·cm, and a ratio of volume resistivity RB of the laminate at 350° C. relative to volume resistivity RA of the laminate at 25° C. is 10 or more.
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公开(公告)号：US11245115B2
公开(公告)日：2022-02-08
申请号：US16634858
申请日：2018-08-09
申请人： ZEON CORPORATION
发明人： Kenya Sonobe , Takafumi Sekimoto , Maki Mesuda , Hiroki Oguro
IPC分类号： H01M4/62 , H01M10/0525 , H01M4/131 , H01M4/136 , C08F220/18
摘要： A binder composition for a non-aqueous secondary battery electrode contains an organic solvent and a binder that includes a polymer A including an ethylenically unsaturated acid monomer unit in a proportion of not less than 1.00 mass % and not more than 10.00 mass %. The polymer A has a viscosity of 10,000 mPa·s or less at a shear rate of 0.1 s−1 when mixed with the organic solvent in a concentration of 8 mass % to obtain a mixture.
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公开(公告)号：US10044026B2
公开(公告)日：2018-08-07
申请号：US15519161
申请日：2015-10-30
申请人： ZEON CORPORATION
发明人： Kenya Sonobe , Yasuhiro Isshiki , Masanori Shibuya
IPC分类号： H01M4/133 , C08F220/56 , 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 , C08K3/34 , C08K3/04 , H01M4/02 , H01M4/04 , H01M4/1393
摘要： 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%.
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6.发明申请公开(公告)号：US20150132644A1
公开(公告)日：2015-05-14
申请号：US14397665
申请日：2013-06-06
申请人： ZEON CORPORATION
CPC分类号： H01M4/364 , H01M4/133 , H01M4/134 , H01M4/386 , H01M4/587 , H01M4/622 , H01M4/625 , H01M2004/027 , H01M2220/30
摘要： Provided is a negative electrode slurry composition including a binder resin, a water-soluble polymer, and a negative electrode active material, wherein the binder resin including (A) a styrene-butadiene copolymer latex having a gel amount of 70 to 98% and having a glass transition temperature in dynamic viscoelasticity measurement with a single peak at −30° C. to 60° C. and (B) a polymer latex formed of a hetero-phase structure having a glass transition temperature in dynamic viscoelasticity measurement with at least one peak at −100° C. to 10° C. and having a glass transition temperature in dynamic viscoelasticity measurement with at least one peak at 10° C. to 100° C., and the negative electrode active material including a carbon-based active material and a silicon-based active material.
摘要翻译： 本发明提供包含粘合剂树脂，水溶性聚合物和负极活性物质的负极浆料组合物，其中，所述粘合剂树脂包含（A）凝胶量为70〜98％的苯乙烯 - 丁二烯共聚物胶乳， 在-30℃至60℃下具有单峰的动态粘弹性测量中的玻璃化转变温度和（B）由具有至少一种动态粘弹性测量中的玻璃化转变温度的异相结构形成的聚合物胶乳 峰值在-100℃至10℃，并且在10℃至100℃下具有至少一个峰的动态粘弹性测量中的玻璃化转变温度，并且负极活性材料包括碳基活性物质 材料和硅基活性材料。
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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：US11302923B2
公开(公告)日：2022-04-12
申请号：US16960317
申请日：2019-01-10
申请人： ZEON CORPORATION
发明人： Kenya Sonobe , Yasuhiro Isshiki
IPC分类号： H01M4/62 , H01M10/0525 , H01G11/38 , H01M4/88
摘要： Provided is an additive for an electrochemical device that can ensure a high level of safety of an electrochemical device. The additive for an electrochemical device is an additive for an electrochemical device that is used in an electrochemical device, for which a temperature at which a volume expansion ratio thereof reaches a factor of 2 or more is higher than 150° C. and lower than 400° C., and in which the content of (A) each element belonging to group 2 of the periodic table is less than 100 mass ppm, the content of (B) each element belonging to group 17 of the periodic table is less than 100 mass ppm, and the content of (C) each element among Cr, Mn, Fe, Co, Ni, Cu, and Zn is less than 5 mass ppm.
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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：US10090527B2
公开(公告)日：2018-10-02
申请号：US14773333
申请日：2014-03-14
申请人： ZEON CORPORATION
发明人： Kenya Sonobe
IPC分类号： H01M4/62 , H01M10/0525 , C08F236/10 , H01M4/86
摘要： 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).
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