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公开(公告)号：US11208508B2
公开(公告)日：2021-12-28
申请号：US16474012
申请日：2017-12-22
申请人： TOAGOSEI CO., LTD.
摘要： A method for manufacturing polymer fine particles having a narrow particle diameter distribution without any particular limitations on the raw materials and the like. To achieve this purpose, this method for manufacturing polymer fine particles includes polymerizing a vinyl monomer using a dispersion polymerization method, wherein the amount of water in the reaction liquid in the polymerizing is no more than 30,000 ppm, the reactor for carrying out the polymerizing is a stirring tank reactor, the stirring blade attached to the stirring rotation shaft of the stirring tank reactor is one type selected from a large wide blade and a large lattice blade, and the tip speed of the stirring blade is no more than 1.0 m/sec.
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公开(公告)号：US11773246B2
公开(公告)日：2023-10-03
申请号：US16499568
申请日：2018-03-05
发明人： Takashi Hasegawa , Naohiko Saito , Atsushi Nishiwaki , Hideo Matsuzaki , Sho Urata , Nobuhiro Sakitani , Takaharu Morikawa
摘要： A binder for a non-aqueous electrolyte secondary battery electrode that includes a crosslinked polymer having a carboxyl group or a salt thereof, wherein the crosslinked polymer includes 50% by mass or more and 100% by mass or less structural unit derived from an ethylenically unsaturated carboxylic acid monomer relative to all structural units, wherein a total amount of the ethylenically unsaturated carboxylic acid monomer and a salt thereof in terms of a non-neutralized form which is converted from the ethylenically unsaturated carboxylic acid monomer and a salt thereof relative to a total amount of the crosslinked polymer and a salt thereof is 5.0% by mass or less.
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公开(公告)号：US10790542B2
公开(公告)日：2020-09-29
申请号：US16072763
申请日：2017-01-24
申请人： TOAGOSEI CO., LTD.
IPC分类号： H01M10/0565 , H01M4/134 , H01M4/131 , H01M4/133 , C08F220/06 , H01M4/62 , H01M10/052 , H01M10/058 , H01M10/0525
摘要： A binder for a nonaqueous electrolyte secondary battery electrode, containing a crosslinked polymer or salt thereof having a carboxyl group and a use thereof, and a method of manufacturing the polymer or salt. The polymer has a structural unit derived from an ethylenically unsaturated carboxylic acid monomer in an amount of 50 to 99 mass % of total structural units and a structural unit derived from a nonionic ethylenically unsaturated monomer in an amount of 1 to 50 mass % of the total structural units, the monomer is a compound having a substituent with a carbon atom number of 6 or more, and a particle diameter of the crosslinked polymer is 0.1 to 7.0 μm in a volume-based median diameter when the crosslinked polymer is neutralized to a neutralization degree of 80 to 100 mol %, subjected to water swelling in water, and then dispersed in a 1 mass % NaCl aqueous solution.
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公开(公告)号：US10680246B2
公开(公告)日：2020-06-09
申请号：US15532672
申请日：2016-10-26
申请人： TOAGOSEI CO. LTD.
IPC分类号： H01M4/62 , H01M4/13 , H01M10/0525 , C08F220/06 , C08J3/14 , C09D5/24 , C09D133/02
摘要： Provided is a binder for a nonaqueous electrolyte secondary battery electrode. The binder contains a crosslinked polymer having a carboxyl group, or salt thereof, a use therefor, and a method for manufacturing a carboxyl group-containing crosslinked polymer or salt thereof for use in the binder. The crosslinked polymer contains a structural unit derived from an ethylenically unsaturated carboxylic acid monomer in the amount of 50 to 100 mass % of total structural units, and after the crosslinked polymer neutralized to a degree of a neutralization of 80 to 100 mol % has been subjected to water swelling in water and then dispersed in a 1 mass % NaCl aqueous solution, the particle diameter thereof is 0.1 to 7.0 μm in a volume-based median diameter.
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公开(公告)号：US11870076B2
公开(公告)日：2024-01-09
申请号：US16499593
申请日：2018-03-05
发明人： Naohiko Saito , Takashi Hasegawa , Atsushi Nishiwaki , Hideo Matsuzaki , Nobuhiro Sakitani , Sho Urata , Takaharu Morikawa
IPC分类号： H01M4/62 , H01M10/0525 , C08F220/14 , C08F290/12 , C08F220/18 , C08F8/14
CPC分类号： H01M4/622 , C08F8/14 , C08F220/14 , C08F220/1804 , C08F290/126 , H01M10/0525 , Y02E60/10
摘要： A water-based binder for a non-aqueous electrolyte secondary battery. A binder for a non-aqueous electrolyte secondary battery electrode, includes a crosslinked polymer having a carboxyl group or a salt thereof, and the crosslinked polymer includes a structural unit derived from an ethylenically unsaturated carboxylic acid monomer; and a structural unit derived from a macromonomer including at least one compositional monomer selected from compounds represented by following formula (1):
[C1]
H2C═CR1—X formula (1)
wherein in formula (1), R1 represents a hydrogen or a methyl group; X represents C(═O)OR2 or CN; and R2 represents a straight chain or branched C1-C8 alkyl group or a C3-C8 alkyl group having an alicyclic structure.
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