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公开(公告)号:US11233229B2
公开(公告)日:2022-01-25
申请号:US16900351
申请日:2020-06-12
发明人: Yusuke Mizuno , Yasuhiro Shindo , Yasuhiro Tsudo , Kenichi Kawakita , Yuki Kusachi , Yasuhiko Ohsawa , Hajime Satou , Hiroshi Akama , Hideaki Horie
IPC分类号: H01M4/131 , H01M4/13 , H01M4/139 , H01M4/04 , H01M4/62 , H01M10/0525 , H01M4/133 , H01M4/1391 , H01M4/1393 , H01M4/66 , H01M4/80 , H01M4/48 , H01M4/583 , H01M50/46 , H01M4/485 , H01M4/36 , H01M4/02
摘要: The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the lithium ion battery. The electrode has a thickness of 150 to 5000 μm. The electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B). At least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface. The conductive path is in contact with the active material particles (B) around the conductive path.
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公开(公告)号:US10276858B2
公开(公告)日:2019-04-30
申请号:US15105655
申请日:2014-12-12
发明人: Yusuke Mizuno , Yasuhiro Shindo , Yasuhiro Tsudo , Kenichi Kawakita , Yuki Kusachi , Yasuhiko Ohsawa , Hajime Satou , Hiroshi Akama , Hideaki Horie
IPC分类号: H01M4/48 , H01M4/62 , H01M4/80 , H01M4/131 , H01M4/133 , H01M4/139 , H01M4/485 , H01M4/583 , H01M4/1391 , H01M4/1393 , H01M10/0525 , H01M4/04 , H01M2/16 , H01M4/02 , H01M4/13 , H01M4/36 , H01M4/66
摘要: The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the lithium ion battery. The electrode has a thickness of 150 to 5000 μm. The electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B). At least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface. The conductive path is in contact with the active material particles (B) around the conductive path.
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公开(公告)号:US11430973B2
公开(公告)日:2022-08-30
申请号:US16605639
申请日:2018-04-20
发明人: Tomoya Ohta , Kotaro Nasu , Kenichi Kawakita , Takuya Suenaga , Yusuke Mori , Yasuhiko Ohsawa , Yuki Kusachi , Hajime Satou , Hiroshi Akama , Hideaki Horie
摘要: The present invention provides a viscous adhesive capable of retaining the shape of an electrode and allowing for production of an electrode for a lithium-ion battery having a structure in which the energy density of the electrode does not decrease. The present invention relates to a viscous adhesive for a lithium-ion electrode which allows active materials to adhere to each other in a lithium-ion electrode, the viscous adhesive having a glass transition temperature of 60° C. or lower, a solubility parameter of 8 to 13 (cal/cm3)1/2, and a storage shear modulus and a loss shear modulus of 2.0×103 to 5.0×107 Pa as measured in a frequency range of 10−1 to 101 Hz at 20° C., wherein the viscous adhesive is an acrylic polymer essentially containing a constituent unit derived from a (meth)acrylic acid alkyl ester monomer, the proportion of the (meth)acrylic acid alkyl ester monomer in monomers constituting the viscous adhesive is 50 wt % or more based on the total monomer weight, and the proportion of a fluorine-containing monomer is less than 3 wt % based on the total monomer weight.
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公开(公告)号:US11322732B2
公开(公告)日:2022-05-03
申请号:US16900382
申请日:2020-06-12
发明人: Yusuke Mizuno , Yasuhiro Shindo , Yasuhiro Tsudo , Kenichi Kawakita , Yuki Kusachi , Yasuhiko Ohsawa , Hajime Satou , Hiroshi Akama , Hideaki Horie
IPC分类号: H01M4/131 , H01M4/13 , H01M4/139 , H01M4/04 , H01M4/62 , H01M10/0525 , H01M4/133 , H01M4/1391 , H01M4/1393 , H01M4/66 , H01M4/80 , H01M50/46 , H01M4/48 , H01M4/485 , H01M4/583 , H01M4/36 , H01M4/02
摘要: The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the lithium ion battery. The electrode has a thickness of 150 to 5000 μm. The electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B). At least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface. The conductive path is in contact with the active material particles (B) around the conductive path.
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公开(公告)号:US11283066B2
公开(公告)日:2022-03-22
申请号:US15120585
申请日:2015-02-16
发明人: Yusuke Mizuno , Takahiro Imaishi , Kenichi Kawakita , Yuki Kusachi , Hiroshi Akama , Hideaki Horie
IPC分类号: H01M4/36 , H01M4/62 , H01M4/13 , H01M4/583 , H01M4/133 , H01M10/0525 , H01M4/04 , H01M4/139 , H01M10/052 , H01M10/058 , H01M4/02
摘要: An object of the present invention is to provide a negative electrode active material capable of reducing the irreversible capacity of a lithium ion battery. The present invention provides a coated negative electrode active material for lithium ion batteries wherein at least a portion of the surface of a particulate negative electrode active material for lithium ion batteries is coated with a coating agent and the coated negative electrode active material is doped with at least one of lithium and lithium ions.
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公开(公告)号:US10236478B2
公开(公告)日:2019-03-19
申请号:US15426759
申请日:2017-02-07
发明人: Yasuhiro Shindo , Yusuke Mizuno , Kenichi Kawakita , Yasuhiko Ohsawa , Yuki Kusachi , Hajime Satou , Hiroshi Akama , Hideaki Horie
IPC分类号: H01M2/02 , H01M4/66 , H01M2/10 , H01M4/505 , H01M4/525 , B29C70/84 , H01M4/60 , H01M4/587 , H01M4/40 , H01M4/38 , H01M4/62 , B29C70/88 , H01M10/0525 , H01M4/58 , H01M2/30 , H01M4/04 , H01M10/04 , B29L31/34 , B29K105/16 , H01M10/052
摘要: Provided is a method for producing a lithium ion cell having an outer container composed of a resin molded article, and the method for producing a lithium ion cell includes a current collector forming process of forming, on the inner side of an outer container, each of a first electrode current collector and a second electrode current collector composed of an electrically conductive polymer composition by using a molding die.
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公开(公告)号:US10211462B2
公开(公告)日:2019-02-19
申请号:US15426695
申请日:2017-02-07
发明人: Yasuhiro Shindo , Yusuke Mizuno , Kenichi Kawakita , Yasuhiko Ohsawa , Yuki Kusachi , Hajime Satou , Hiroshi Akama , Hideaki Horie
摘要: Provided is a lithium ion cell having a power generation part provided with a single cell obtained by stacking a positive electrode current collector, a positive electrode active material layer, a separator, a negative electrode active material layer, and a negative electrode current collector in the order, and an exterior cell container for accommodating the power generation part, in which the positive electrode active material layer is a non-bound material of a positive electrode active material particle, the negative electrode active material layer is a non-bound material of a negative electrode active material particle, and the single cell has flexibility.
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公开(公告)号:US11211596B2
公开(公告)日:2021-12-28
申请号:US16606858
申请日:2018-04-20
发明人: Takuya Suenaga , Kenichi Kawakita , Yuki Kusachi , Yasuhiko Ohsawa , Hajime Satou , Hiroshi Akama , Hideaki Horie
IPC分类号: H01M4/04 , H01M4/139 , H01M4/36 , H01M4/62 , H01M10/0525 , H01M10/058
摘要: The present invention provides a method of producing an electrode active material molded body for a lithium-ion battery suitable for the production of a lithium-ion battery, and a method of producing a lithium-ion battery using the electrode active material molded body, wherein the methods can reduce the time, work, equipment, and the like required for the production. The present invention provides a method of producing an electrode composition molded body for a lithium-ion battery, including: a molding step of molding a composition containing an electrode active material for a lithium-ion battery and an electrolyte solution into an electrode active material molded body for a lithium-ion battery as an unbound product of the electrode active material for a lithium-ion battery, wherein the composition has an electrolyte solution content of 0.1 to 40 wt % based on the weight of the composition.
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公开(公告)号:US10727476B2
公开(公告)日:2020-07-28
申请号:US15951647
申请日:2018-04-12
发明人: Yusuke Mizuno , Yasuhiro Shindo , Yasuhiro Tsudo , Kenichi Kawakita , Yuki Kusachi , Yasuhiko Ohsawa , Hajime Satou , Hiroshi Akama , Hideaki Horie
IPC分类号: H01M4/131 , H01M4/13 , H01M4/139 , H01M4/04 , H01M2/16 , H01M4/133 , H01M4/1391 , H01M4/1393 , H01M4/66 , H01M4/80 , H01M4/48 , H01M4/485 , H01M4/583 , H01M4/62 , H01M10/0525 , H01M4/36 , H01M4/02
摘要: The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the lithium ion battery. The electrode has a thickness of 150 to 5000 μm. The electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B). At least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface. The conductive path is in contact with the active material particles (B) around the conductive path.
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