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1.发明公开公开(公告)号：US20240030454A1
公开(公告)日：2024-01-25
申请号：US18266097
申请日：2021-10-08
Inventor： Shinji Mino , Daisuke Tokieda
CPC classification number: H01M4/628 , H01M4/0404 , C01B33/40 , C09D5/24 , C09D1/00 , C09D7/20 , C09D7/80
Abstract: This method for producing a positive electrode slurry comprises: a step wherein an aqueous solution, in which a smectite is dissolved, is mixed with a solvent containing N-methyl-2-pyrrolidone (NMP), thereby preparing an aqueous smectite-NMP solution; a step wherein the aqueous smectite-NMP solution is subjected to thermal dehydration, thereby obtaining a smectite-containing solid content lump; and a step wherein the smectite-containing solid content lump, a positive electrode active material and the solvent containing N-methyl-2-pyrrolidone (NMP) are mixed with each other, thereby preparing a slurry.
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公开(公告)号：US20230048875A1
公开(公告)日：2023-02-16
申请号：US17792875
申请日：2020-11-17
Inventor： Shinji Mino , Eisuke Sato , Takanori Maruo
IPC: H01M4/04 , B01F27/051 , H01M4/62
Abstract: A coating method has: a first step for mixing an active material, a binding agent, and a solvent, and obtaining a mixed slurry; a second step for adding an additive to the mixed slurry, stirring the mixed slurry and the additive, and obtaining a coating slurry and a third step for intermittently coating the coating slurry on a collector body, and forming a coated part and a non-coated part. In the second step, the addition amount of the additive is set in accordance with a preset coating speed of the coating slurry, or the weight of the coated part, and the additive includes castor oil, cellulose nanofibers, modified silicone, an amide, polyethylene oxide, propylene glycol monomethyl ether acetate, polyamine, and/or polycarboxylic acid.
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公开(公告)号：US20220069272A1
公开(公告)日：2022-03-03
申请号：US17415224
申请日：2019-11-29
Inventor： Shinji Mino , Eisuke Sato , Yoshinori Sakai , Kazutoshi Utsumiya
Abstract: A positive electrode slurry including a positive electrode material mixture and a dispersion medium for dispersing the positive electrode material mixture. The positive electrode material mixture contains a positive electrode active material, an electrically conductive agent, a binder, and an additive. The additive includes a compound intramolecularly having a polyether group and an acidic group.
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Patent Agency Ranking
公开(公告)号：US20200295350A1
公开(公告)日：2020-09-17
申请号：US16891377
申请日：2020-06-03
Inventor： Shinji Mino , Takanori Maruo , Motoki Kinugawa
Abstract: A lithium secondary battery positive electrode with: a metallic foil; and a positive electrode mixture layer formed on a surface of the metallic foil and containing a binding agent, a conductive agent, and a positive electrode active material comprising a lithium-transition metal complex oxide, wherein the positive electrode has a diameter of the liquid-removed space of at most 6.5 mm as measured by a wettability evaluation test, wherein a positive electrode is placed inside a container, and a prescribed test solution is added to a prescribed liquid-surface level, and nitrogen is sprayed thereon from a prescribed pipe at a prescribed pressure. A measurement is taken of the diameter of a region from which the solution has been removed by the spraying, and a mean value of such diameters measured between 0.5 seconds and 1.5 seconds after the initiation of the spraying is used as the diameter of the liquid-removed space.
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公开(公告)号：US12218383B2
公开(公告)日：2025-02-04
申请号：US17041693
申请日：2019-02-28
Inventor： Takanori Maruo , Shinji Mino , Motoki Kinugawa
IPC: H01M50/538 , H01M4/13 , H01M4/62 , H01M10/0525 , H01M10/0587 , H01M50/534 , H01M50/536
Abstract: This electrode plate for a non-aqueous electrolyte secondary battery has a band-like core and a first active substance layer formed on at least a first surface of the core. A current-collecting lead is connected to an exposed section at which a portion of the first surface of the core is exposed in the longitudinal direction. The electrode plate for a non-aqueous electrolyte secondary battery has a second active substance layer which is more electroconductive than the first active substance layer and which is disposed on a portion of the first surface such that it adjoins with the exposed section.
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公开(公告)号：US20210013482A1
公开(公告)日：2021-01-14
申请号：US17041693
申请日：2019-02-28
Inventor： Takanori Maruo , Shinji Mino , Motoki Kinugawa
IPC: H01M2/26 , H01M4/13 , H01M10/0587
Abstract: This electrode plate for a non-aqueous electrolyte secondary battery has a band-like core and a first active substance layer formed on at least a first surface of the core. A current-collecting lead is connected to an exposed section at which a portion of the first surface of the core is exposed in the longitudinal direction. The electrode plate for a non-aqueous electrolyte secondary battery has a second active substance layer which is more electroconductive than the first active substance layer and which is disposed on a portion of the first surface such that it adjoins with the exposed section.
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7.发明申请公开(公告)号：US20180358608A1
公开(公告)日：2018-12-13
申请号：US16103338
申请日：2018-08-14
Inventor： Shinji Mino
IPC: H01M4/139 , H01M10/04 , H01M10/0583 , H01M2/26 , H01M2/16
CPC classification number: H01M4/139 , H01M2/1673 , H01M2/26 , H01M2/263 , H01M10/0431 , H01M10/0583
Abstract: A method for producing an electrode assembly includes a step of ultrasonically welding an exposed portion where the surface of an electrode current collector is exposed and an electrode lead to each other. The ultrasonic welding is performed, while the exposed portion of the electrode current collector and the electrode lead are stacked on each other, with an ultrasonic horn pressed against a resin sheet disposed on the exposed portion or the electrode lead. The resin sheet includes a sheet base material and an adhesive layer formed on one surface of the base material and is bonded to a portion of the exposed portion that is to be in contact with the ultrasonic horn or to a portion of the electrode lead that is to be in contact with the ultrasonic horn.
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公开(公告)号：US11075374B2
公开(公告)日：2021-07-27
申请号：US16103338
申请日：2018-08-14
Inventor： Shinji Mino
IPC: H01M4/139 , H01M10/0587 , H01M50/46 , H01M50/531 , H01M50/538 , H01M10/04 , H01M10/0583
Abstract: A method for producing an electrode assembly includes a step of ultrasonically welding an exposed portion where the surface of an electrode current collector is exposed and an electrode lead to each other. The ultrasonic welding is performed, while the exposed portion of the electrode current collector and the electrode lead are stacked on each other, with an ultrasonic horn pressed against a resin sheet disposed on the exposed portion or the electrode lead. The resin sheet includes a sheet base material and an adhesive layer formed on one surface of the base material and is bonded to a portion of the exposed portion that is to be in contact with the ultrasonic horn or to a portion of the electrode lead that is to be in contact with the ultrasonic horn.
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