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公开(公告)号：US20220123367A1
公开(公告)日：2022-04-21
申请号：US17424222
申请日：2019-12-18
Inventor： Yasuko Nozaki , Tasuku Ishiguro , Tomohisa Okazaki
IPC: H01M10/0569 , H01M10/0568 , H01M10/0567 , H01M10/0525
Abstract: A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode and a liquid electrolyte, wherein the liquid electrolyte contains lithium bis(fluorosulfonyl)imide and dimethyl sulfate.
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公开(公告)号：US20210036367A1
公开(公告)日：2021-02-04
申请号：US16966147
申请日：2019-01-10
Inventor： Chisaki Fujitomo , Satoshi Nishitani , Yasuko Nozaki , Masaki Deguchi
IPC: H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M10/058
Abstract: Disclosed is a non-aqueous electrolyte secondary battery including: a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an electrolyte solution, wherein the electrolyte solution includes a solvent, a solute, and a carboxylic anhydride, the solvent includes a carboxylic acid ester compound, and the solute includes a sulfonyl imide compound.
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公开(公告)号：US20220115700A1
公开(公告)日：2022-04-14
申请号：US17424231
申请日：2020-01-06
Inventor： Tasuku Ishiguro , Yasuko Nozaki , Tomohisa Okazaki
IPC: H01M10/0567 , H01M10/0568 , H01M4/525 , H01M10/0525
Abstract: A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode and a liquid electrolyte, wherein the liquid electrolyte contains a lithium salt and isopropyl acetate, and the lithium salt includes lithium bis(fluorosulfonyl)imide, and a content of isopropyl acetate in the liquid electrolyte is 1000 ppm or less with respect to a mass of the liquid electrolyte.
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公开(公告)号：US20220006120A1
公开(公告)日：2022-01-06
申请号：US17289373
申请日：2019-10-30
Inventor： Yasuko Nozaki , Tasuku Ishiguro , Tomohisa Okazaki
IPC: H01M10/0567 , H01M10/0568 , H01M10/0525
Abstract: A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The non-aqueous electrolyte contains a lithium salt and a carboxylic acid, and the lithium salt includes lithium difluorophosphate. The content of the carboxylic acid in the non-aqueous electrolyte is 5 ppm or more and 900 ppm or less with respect to the mass of the non-aqueous electrolyte.
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公开(公告)号：US12294054B2
公开(公告)日：2025-05-06
申请号：US17613650
申请日：2020-05-21
Inventor： Tasuku Ishiguro , Yasuko Nozaki
IPC: H01M10/0567 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0568 , H01M4/02
Abstract: A non-aqueous electrolyte secondary battery having a positive electrode, a separator, a negative electrode opposed to the positive electrode via the separator, and a liquid electrolyte wherein the liquid electrolyte includes a lithium salt, methyl acetate, and dimethyl sulfone. The content ratio of methyl acetate in the liquid electrolyte is 10% by mass to 40% by mass, and the content ratio of dimethyl sulfone in the liquid electrolyte is 0.1% by mass to 5% by mass.
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Patent Agency Ranking
公开(公告)号：US12119445B2
公开(公告)日：2024-10-15
申请号：US16966147
申请日：2019-01-10
Inventor： Chisaki Fujitomo , Satoshi Nishitani , Yasuko Nozaki , Masaki Deguchi
IPC: H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M10/058
CPC classification number: H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M10/058
Abstract: Disclosed is a non-aqueous electrolyte secondary battery including: a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an electrolyte solution, wherein the electrolyte solution includes a solvent, a solute, and a carboxylic anhydride, the solvent includes a carboxylic acid ester compound, and the solute includes a sulfonyl imide compound.
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公开(公告)号：US12148885B2
公开(公告)日：2024-11-19
申请号：US17424231
申请日：2020-01-06
Inventor： Tasuku Ishiguro , Yasuko Nozaki , Tomohisa Okazaki
IPC: H01M10/0567 , H01M4/525 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M4/02
Abstract: A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode and a liquid electrolyte, wherein the liquid electrolyte contains a lithium salt and isopropyl acetate, and the lithium salt includes lithium bis(fluorosulfonyl)imide, and a content of isopropyl acetate in the liquid electrolyte is 1000 ppm or less with respect to a mass of the liquid electrolyte.
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公开(公告)号：US11973188B2
公开(公告)日：2024-04-30
申请号：US17289373
申请日：2019-10-30
Inventor： Yasuko Nozaki , Tasuku Ishiguro , Tomohisa Okazaki
IPC: H01M10/0567 , H01M10/0525 , H01M10/0568
CPC classification number: H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M2300/004
Abstract: A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The non-aqueous electrolyte contains a lithium salt and a carboxylic acid, and the lithium salt includes lithium difluorophosphate. The content of the carboxylic acid in the non-aqueous electrolyte is 5 ppm or more and 900 ppm or less with respect to the mass of the non-aqueous electrolyte.
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公开(公告)号：US20220238919A1
公开(公告)日：2022-07-28
申请号：US17613650
申请日：2020-05-21
Inventor： Tasuku Ishiguro , Yasuko Nozaki
IPC: H01M10/0567 , H01M10/0568 , H01M4/505 , H01M4/525 , H01M10/0525
Abstract: A non-aqueous electrolyte secondary battery having a positive electrode, a separator, a negative electrode opposed to the positive electrode via the separator, and a liquid electrolyte wherein the liquid electrolyte includes a lithium salt, methyl acetate, and dimethyl sulfone. The content ratio of methyl acetate in the liquid electrolyte is 10% by mass to 40% by mass, and the content ratio of dimethyl sulfone in the liquid electrolyte is 0.1% by mass to 5% by mass.
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公开(公告)号：US20220109186A1
公开(公告)日：2022-04-07
申请号：US17424224
申请日：2019-12-02
Inventor： Tomohisa Okazaki , Tasuku Ishiguro , Yasuko Nozaki
IPC: H01M10/0567 , H01M10/0568 , H01M10/0525
Abstract: A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode and a liquid electrolyte, wherein the liquid electrolyte contains lithium bis(fluorosulfonyl)imide and 1,4-dioxane.
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