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公开(公告)号：US20210210784A1
公开(公告)日：2021-07-08
申请号：US16071349
申请日：2016-08-29
Inventor： Miyuki Nakai , Yasuyuki Kusumoto
IPC: H01M10/0567 , H01M4/06 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M4/136 , H01M4/58 , H01M4/583 , H01M4/50
Abstract: A lithium battery includes a positive electrode, a negative electrode containing lithium, and a nonaqueous electrolyte having lithium-ion conductivity, wherein the positive electrode contains at least one selected from the group consisting of manganese oxide and graphite fluoride, and a powdered or fibrous carbon material is attached to at least part of the surface of the negative electrode opposite the positive electrode. Further, the nonaqueous electrolyte includes a nonaqueous solvent, a solute, a first additive, and a second additive, the solute contains LiClO4, the first additive is LiBF4, and the second additive is a salt having an inorganic anion that contains sulfur and fluorine.
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公开(公告)号：US12199243B2
公开(公告)日：2025-01-14
申请号：US17435551
申请日：2020-01-15
Inventor： Yasuyuki Kusumoto , Atsushi Fukui
IPC: H01M10/0569
Abstract: This non-aqueous electrolyte secondary battery comprises: an electrode assembly including a positive electrode, a negative electrode, and a separator; and a non-aqueous electrolyte including a non-aqueous solvent and an electrolyte salt dissolved in the non-aqueous solvent. The non-aqueous electrolyte contains a fluorine-containing chain carboxylic acid ester represented by formula 1 and a trifluoroethanol. The fluorine-containing chain carboxylic acid ester is contained in an amount of at least 10 vol % with respect to the volume of the non-aqueous electrolyte excluding the electrolyte salt, and the trifluoroethanol is contained in an amount of 0.1-2 mass % with respect to the mass of the fluorine-containing chain carboxylic acid ester. [Formula 1] RCOOCH2CF3, wherein R is a C2 or lower alkyl group, or a fluoroalkyl group.
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公开(公告)号：US11876253B2
公开(公告)日：2024-01-16
申请号：US17427860
申请日：2019-10-25
Inventor： Takayuki Nakatsutsumi , Yasuyuki Kusumoto , Yasufumi Takahashi , Atsushi Fukui
CPC classification number: H01M6/06 , H01M4/244 , H01M10/26 , H01M2300/0014
Abstract: An alkaline dry battery, including: a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an alkaline electrolyte. The positive electrode includes a manganese dioxide, the negative electrode includes zinc and/or a zinc alloy, and the alkaline electrolyte includes at least one sulfonyl group-containing anion selected from the group consisting of a bis(perfluoroalkylsulfonyl)imide anion, a bis(fluorosulfonyl)imide anion, and a fluorosulfonate anion.
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公开(公告)号：US11581549B2
公开(公告)日：2023-02-14
申请号：US16982279
申请日：2018-10-29
Inventor： Yasufumi Takahashi , Yasuyuki Kusumoto , Atsushi Fukui
IPC: H01M6/06 , H01M50/107 , H01M50/124 , H01M50/116 , H01M4/06 , H01M6/02
Abstract: An alkaline dry battery includes a battery case, a hollow cylindrical positive electrode accommodated in the battery case, a negative electrode disposed in the hollow portion of the positive electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolytic solution contained in the positive electrode, the negative electrode and the separator. The alkaline dry battery further includes a layer principally including a compound containing a polyoxyethylene group between the positive electrode and the inner surface of the battery case.
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Patent Agency Ranking
公开(公告)号：US11322737B2
公开(公告)日：2022-05-03
申请号：US16979398
申请日：2018-10-11
Inventor： Yasuyuki Kusumoto , Yasufumi Takahashi , Atsushi Fukui
Abstract: An alkaline dry battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an alkaline electrolytic solution contained in the positive electrode, the negative electrode and the separator. The negative electrode includes a negative electrode active material including zinc, and an additive. The additive includes at least one selected from the group consisting of maleic acid, maleic anhydride and maleate salts.
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公开(公告)号：US11211637B2
公开(公告)日：2021-12-28
申请号：US16071349
申请日：2016-08-29
Inventor： Miyuki Nakai , Yasuyuki Kusumoto
IPC: H01M10/0567 , H01M4/06 , H01M4/136 , H01M4/58 , H01M4/583 , H01M4/50 , H01M10/0525 , H01M10/0568 , H01M10/0569
Abstract: A lithium battery includes a positive electrode, a negative electrode containing lithium, and a nonaqueous electrolyte having lithium-ion conductivity, wherein the positive electrode contains at least one selected from the group consisting of manganese oxide and graphite fluoride, and a powdered or fibrous carbon material is attached to at least part of the surface of the negative electrode opposite the positive electrode. Further, the nonaqueous electrolyte includes a nonaqueous solvent, a solute, a first additive, and a second additive, the solute contains LiClO4, the first additive is LiBF4, and the second additive is a salt having an inorganic anion that contains sulfur and fluorine.
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公开(公告)号：US20210104725A1
公开(公告)日：2021-04-08
申请号：US16497580
申请日：2018-02-14
Inventor： Miyuki Nakai , Yasuyuki Kusumoto , Yusuke Kawahara , Futoshi Tanigawa , Atsushi Fukui
Abstract: A positive electrode, a negative electrode containing lithium, and a nonaqueous electrolyte having lithium ion conductivity are installed. The nonaqueous electrolyte contains a nonaqueous solvent and a solute. The positive electrode contains a positive electrode active material containing at least manganese dioxide, a conductive agent, and a binding agent and further contains an oxide and sulfate of a rare-earth element.
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公开(公告)号：US20210020957A1
公开(公告)日：2021-01-21
申请号：US16981118
申请日：2018-10-10
Inventor： Miyuki Nakai , Yasuyuki Kusumoto , Atsushi Fukui
Abstract: A lithium primary battery including: a battery case; an electrode group; and a nonaqueous electrolyte; the nonaqueous electrolyte contains a nonaqueous solvent, a solute, and an additive; the electrode group includes a positive electrode, a negative electrode, and a separator interposed therebetween; the negative electrode includes foil composed of metal lithium or a lithium alloy, has a shape extending in a longitudinal direction and a short direction, and provided with a long tape adhered to at least one main surface of the negative electrode along the longitudinal direction thereof; the tape includes a resin substrate and an adhesive layer and has a width of 0.5 to 3 mm; and the additive is a lithium salt represented by the following formula (1): LixMCyOzFα (1≤x≤2, 0≤y≤6, 0≤z≤8, 0≤α≤6, and 1≤y+z+α are satisfied, and y and z are not simultaneously 0), and the element M includes at least one of phosphorus and boron.
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公开(公告)号：US20210005886A1
公开(公告)日：2021-01-07
申请号：US16979398
申请日：2018-10-11
Inventor： Yasuyuki Kusumoto , Yasufumi Takahashi , Atsushi Fukui
Abstract: An alkaline dry battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an alkaline electrolytic solution contained in the positive electrode, the negative electrode and the separator. The negative electrode includes a negative electrode active material including zinc, and an additive. The additive includes at least one selected from the group consisting of maleic acid, maleic anhydride and maleate salts.
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