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公开(公告)号：US20210305574A1
公开(公告)日：2021-09-30
申请号：US17214939
申请日：2021-03-29
发明人： Shinji OZAKI , Naoki SASAGAWA , Hideki GODA
IPC分类号： H01M4/62 , H01M4/02 , H01M10/0525
摘要： Provided are a binder aqueous solution for a lithium ion battery, a negative electrode slurry for a lithium ion battery, a negative electrode for a lithium ion battery, and a lithium ion battery. The binder aqueous solution for a lithium ion battery has a pH of 5 or higher and contains: a water-soluble polymer (A) that is a polymer of a monomer group containing, with respect to 100 mol % of the monomer group, 15 mol % to 99.9 mol % of an unsaturated carboxylic acid or an inorganic salt thereof, and that has a glass transition temperature of 110° C. or lower; and a hydrolyzed partial condensate (B) of an amino group-containing trialkoxysilane.
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公开(公告)号：US20210151766A1
公开(公告)日：2021-05-20
申请号：US17095750
申请日：2020-11-12
发明人： Shinji OZAKI , Katsuhiko IKEYATSU , Katsuya OKUBO , Satoru AOYAMA , Naoki SASAGAWA , Hideki GODA
摘要： To provide a conductive carbon material dispersing agent for a lithium ion battery, a slurry for a lithium ion battery electrode, an electrode for a lithium ion battery, and a lithium ion battery
The disclosure provides a conductive carbon material dispersing agent for a lithium ion battery including a water-soluble poly(meth)acrylamide (A-1) which contains 2 to 60 mol % of structural units derived from a (meth)acrylamide group-containing compound (a) and 10 to 70 mol % of structural units derived from an unsaturated sulfonic acid or salts thereof (b), and which has a weight average molecular weight of 10,000 to 300,000.-
公开(公告)号：US20210057748A1
公开(公告)日：2021-02-25
申请号：US16999030
申请日：2020-08-20
发明人： Shinji OZAKI , Hideki GODA , Naoki SASAGAWA , Satoru AOYAMA , Katsuya OKUBO , Katsuhiko IKEYATSU
IPC分类号： H01M4/62 , H01M10/0525 , C08F220/56 , C08F220/48 , C08F220/28 , C08F220/58 , H01M4/36 , H01M4/48 , H01M4/587
摘要： Provided are a thermally crosslinkable binder aqueous solution for a lithium-ion battery, a thermally crosslinkable slurry for a lithium-ion battery negative electrode, a negative electrode for a lithium-ion battery, and a lithium-ion battery. The thermally crosslinkable binder aqueous solution for a lithium-ion battery contains a water-soluble poly(meth)acrylamide (A) and a divalent or higher valent metal ion. The water-soluble poly(meth)acrylamide (A) contains 2 mol % to 60 mol % of a constituent unit derived from a (meth)acrylamide group-containing compound (a), and 10 mol % to 50 mol % of a constituent unit derived from one or more unsaturated acids selected from the group consisting of unsaturated carboxylic acids and unsaturated sulfonic acids or an inorganic salt thereof (b). The divalent or higher valent metal ion is contained in an amount of 0.5 mol % to 30 mol % with respect to 100 mol % of an acid group contained in the component (b).
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公开(公告)号：US20230110098A1
公开(公告)日：2023-04-13
申请号：US17947177
申请日：2022-09-19
发明人： Naoki SASAGAWA , Shinji OZAKI , Satoru AOYAMA , Katsuya OKUBO
IPC分类号： H01M4/62 , H01M4/04 , H01M50/46 , H01M50/423
摘要： A binder aqueous solution for power storage device, a slurry for power storage device, an electrode for power storage device, a separator for power storage device, a separator/electrode laminate for power storage device and a power storage device are provided.
The present disclosure provides a binder aqueous solution for power storage device, in which the binder aqueous solution for power storage device contains a water-soluble polymer, the water-soluble polymer contains more than 99 mass% and less than 99.9 mass% of a structural unit derived from a (meth)acrylamide group-containing compound and more than 0.1 mass% and less than 1 mass% of a structural unit derived from an unsaturated hydrocarbon sulfonic acid and/or a salt thereof, and a weight average molecular weight of the water-soluble polymer is less than 300,000.-
公开(公告)号：US20210083262A1
公开(公告)日：2021-03-18
申请号：US17020823
申请日：2020-09-15
发明人： Katsuhiko IKEYATSU , Shinji OZAKI , Hideki GODA
IPC分类号： H01M4/04 , H01M10/0525 , H01M4/62
摘要： Provided are a binder aqueous solution for a lithium-ion battery, a slurry for a lithium-ion battery negative electrode, a negative electrode for a lithium-ion battery, and a lithium-ion battery. The binder aqueous solution for a lithium-ion battery contains a water-soluble poly(meth)acrylamide (A). The water-soluble poly(meth)acrylamide (A) is a polymer of a monomer group containing, with respect to 100 mol % of the monomer group, 30 mol % to 95 mol % of a (meth)acrylamide group-containing compound (a), and 5 mol % to 40 mol % of an alkoxyalkyl (meth)acrylate (b) represented by the following general formula (1), CH2═C(R1)—CO—O—R2—O—R3 (1) (in which R1 is a hydrogen atom or a methyl group, R2 is an alkylene group having 1 to 4 carbon atoms, R3 is an alkyl group having 1 to 4 carbon atoms, and a total number of carbon atoms of the groups R1, R2 and R3 is 5 or less.)
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