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公开(公告)号：US20220271406A1
公开(公告)日：2022-08-25
申请号：US17439959
申请日：2019-11-27
Inventor： Miyuki Nakai , Takayuki Nakatsutsumi , Atsushi Fukui
IPC: H01M50/595 , H01M4/38 , H01M4/40 , H01M6/16 , H01M4/06 , H01M50/571 , H01M50/586
Abstract: A lithium primary battery including a battery case, an electrode group housed in the battery case, and a non-aqueous electrolyte. The non-aqueous electrolyte contains a non-aqueous 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 a metal lithium or lithium alloy foil, and has a shape having a longitudinal direction and a lateral direction, with a long tape attached to at least one principal surface of the negative electrode along the longitudinal direction. The tape includes a resin base material and an adhesive layer, and has a width of 0.5 mm to 3 mm. The additive includes a phosphorus compound having a POn structure having a phosphorus atom and n oxygen atoms bonded to the phosphorus atom, where n=3 or 4.
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公开(公告)号：US20190148710A1
公开(公告)日：2019-05-16
申请号：US16313367
申请日：2017-07-06
Inventor： Yasuyuki Kusumoto , Miyuki Nakai
Abstract: A lithium battery includes a positive electrode, a negative electrode containing lithium, and a lithium ion conductive nonaqueous electrolyte. The positive electrode includes at least one selected from the group consisting of manganese oxide and graphite fluoride. The lithium battery includes a powdery or fibrous material attached to at least a portion of a surface of the negative electrode opposed to the positive electrode. The nonaqueous electrolyte includes a nonaqueous solvent, a solute and additives. The solute includes LiClO4. The additives include LiBF4 and an oxyfluorophosphate salt.
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公开(公告)号：US11710834B2
公开(公告)日：2023-07-25
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：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：US20230102372A1
公开(公告)日：2023-03-30
申请号：US17801188
申请日：2021-01-21
Inventor： Miyuki Nakai , Yuko Ogawa , Toshiro Kume
Abstract: An impurity processing device includes: a pipe through which a treated liquid containing metal impurities flows; a first electrode and a second electrode disposed in the pipe; and a power supply causing a current to flow between the first electrode and the second electrode.
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Patent Agency Ranking
公开(公告)号：US20230101754A1
公开(公告)日：2023-03-30
申请号：US17801182
申请日：2021-01-21
Inventor： Miyuki Nakai , Yuko Ogawa , Toshiro Kume
IPC: H01M4/04
Abstract: An impurity processing device is a device for processing metal impurities contained in a solid-liquid mixture for forming an electrode of an electric storage device, and includes a first electrode and a second electrode that apply an electric field to the solid-liquid mixture, and a power supply that causes a current of 0.1 mA or more to flow between the first electrode and the second electrode.
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公开(公告)号：US11329268B2
公开(公告)日：2022-05-10
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：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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