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公开(公告)号：US20240213459A1
公开(公告)日：2024-06-27
申请号：US18423931
申请日：2024-01-26
Inventor： TAKASHI OTO , TAKANORI OMAE , MASAHISA FUJIMOTO , AKIHIKO SAGARA
IPC: H01M4/38 , H01M4/134 , H01M10/0562
CPC classification number: H01M4/38 , H01M4/134 , H01M10/0562 , H01M2300/008
Abstract: A battery of the present disclosure includes a first electrode, a second electrode, and a solid electrolyte layer disposed between the first electrode and the second electrode. The solid electrolyte layer includes a first solid electrolyte. The first electrode includes: a substrate including a porous body; and an active material layer disposed on a surface of the substrate. The active material layer contains an alloy that contains Bi and Ni.
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公开(公告)号：US20210343997A1
公开(公告)日：2021-11-04
申请号：US17377429
申请日：2021-07-16
Inventor： GO TEI , KOICHI SAWADA , MITSUHIRO HIBINO , MASAKO YOKOYAMA , MASAHISA FUJIMOTO , YU OTSUKA
Abstract: A primary battery includes: a positive electrode including a positive electrode collector composed of a porous conductor, and a porous positive electrode layer disposed on the positive electrode collector, oxygen taken from outside of the primary battery through the positive electrode collector being allowed to diffuse into the porous positive electrode layer; a negative electrode including a negative electrode collector composed of a porous conductor, and a porous negative electrode layer disposed on the negative electrode collector, the porous negative electrode layer including lithium nitride composed of lithium and nitrogen, nitrogen generated during discharge being allowed to diffuse into the porous negative electrode layer; and a nonaqueous electrolytic solution disposed between the positive electrode and the negative electrode, the nonaqueous electrolytic solution containing a lithium salt.
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公开(公告)号：US20180034104A1
公开(公告)日：2018-02-01
申请号：US15634059
申请日：2017-06-27
Inventor： MASAHISA FUJIMOTO
IPC: H01M10/0567 , H01M4/587 , H01M10/0525
CPC classification number: H01M10/0567 , H01M4/587 , H01M10/0525 , H01M2300/0025
Abstract: A battery includes a positive electrode, a negative electrode containing graphite, and an electrolyte solution containing 2,2′-bipyridyl. The molar ratio of 2,2′-bipyridyl in the electrolyte solution to the graphite is 4.091×10−6 or less.
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公开(公告)号：US20180026293A1
公开(公告)日：2018-01-25
申请号：US15636642
申请日：2017-06-29
Inventor： MASAHISA FUJIMOTO , SHUJI ITO
IPC: H01M8/18 , H01M8/04186 , H01M8/04082
Abstract: A flow battery includes a first liquid, a second liquid, a first electrode immersed in the first liquid, a second electrode being a counter electrode of the first electrode and immersed in the second liquid, and an isolation unit separating the first electrode and the first liquid from the second electrode and the second liquid. Lithium is dissolved in at least one of the first liquid and the second liquid. The first liquid and the second liquid have a property of emitting solvated electrons of lithium and dissolving the lithium as a cation.
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公开(公告)号：US20240162486A1
公开(公告)日：2024-05-16
申请号：US18423907
申请日：2024-01-26
Inventor： TAKASHI OTO , MASAHISA FUJIMOTO
IPC: H01M10/0562 , H01M10/0525
CPC classification number: H01M10/0562 , H01M10/0525 , H01M2300/002
Abstract: A battery includes a first electrode; a second electrode; and a solid electrolyte layer disposed between the first electrode and the second electrode. The solid electrolyte layer contains a first solid electrolyte. The first electrode includes: a substrate including a porous body; and an active material layer disposed on a surface of the substrate. The active material layer contains Bi. The first solid electrolyte contains a halide solid electrolyte.
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Patent Agency Ranking
公开(公告)号：US20220255054A1
公开(公告)日：2022-08-11
申请号：US17728982
申请日：2022-04-26
Inventor： MASAHISA FUJIMOTO
IPC: H01M4/134 , H01M10/0569
Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode capable of occluding and releasing lithium, a negative electrode including a negative electrode current collector and a negative electrode active material, and an electrolyte solution including a solvent. In the nonaqueous electrolyte secondary battery, the negative electrode active material includes metal zinc or an alloy of metal zinc. The solvent is composed only of vinylene carbonate.
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公开(公告)号：US20210351439A1
公开(公告)日：2021-11-11
申请号：US17381128
申请日：2021-07-20
Inventor： KOICHI SAWADA , SHUJI ITO , MASAHISA FUJIMOTO , YU OTSUKA , MITSUHIRO HIBINO
IPC: H01M10/0569 , H01M4/587 , H01M10/0525 , H01M10/0568 , H01M10/058 , H01M4/40
Abstract: The present disclosure provides a new battery capable of having an increased capacity per weight. A battery according to the present disclosure includes a positive electrode, a negative electrode, and an electrolyte located between the positive electrode and the negative electrode. The positive electrode includes a positive electrode layer containing graphene oxide. The electrolyte includes a Lewis acid containing a pentafluorophenyl group.
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公开(公告)号：US20210344065A1
公开(公告)日：2021-11-04
申请号：US17378769
申请日：2021-07-19
Inventor： MASAKO YOKOYAMA , MASAHISA FUJIMOTO , MITSUHIRO HIBINO
Abstract: A charge/discharge method of an air battery is a charge/discharge method of an air battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte liquid containing a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent, the nonaqueous electrolyte liquid being interposed between the positive electrode and the negative electrode, the charge/discharge method includes: discharging the air battery; and supplying a charging liquid different from the nonaqueous electrolyte liquid from the outside to the inside of the air battery so that a discharge product generated by the discharging is desorbed from the positive electrode while being in the form of a solid.
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公开(公告)号：US20200350608A1
公开(公告)日：2020-11-05
申请号：US16931325
申请日：2020-07-16
Inventor： SHUJI ITO , MASAHISA FUJIMOTO , HONAMI SAKO , SHO SHIBATA
Abstract: In a flow battery according to one aspect of the present disclosure, a first liquid does not include an undesired compound. The flow battery satisfies requirement (i), (ii), (iii) or (iv). (i) An anode active material 14 includes graphite, and the first liquid has an equilibrium potential of not more than 0.15 V vs. Li/Li+. (ii) An anode active material includes aluminum, and the first liquid has an equilibrium potential of not more than 0.18 V vs. Li/Li+. (iii) An anode active material includes tin, and the first liquid has an equilibrium potential of not more than 0.25 V vs. Li/Li+. (iv) An anode active material includes silicon, and the first liquid has an equilibrium potential of not more than 0.25 V vs. Li/Li+.
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公开(公告)号：US20190058207A1
公开(公告)日：2019-02-21
申请号：US16167531
申请日：2018-10-23
Inventor： MASAHISA FUJIMOTO
IPC: H01M8/18 , H01M8/04186 , H01M8/20 , H01M4/38 , H01M8/023
Abstract: A flow battery includes: a first liquid containing dissolved therein a condensed aromatic compound and lithium; a first electrode immersed in the first liquid; and a first circulator including a first container and a first passage prevention member. The first liquid containing the condensed aromatic compound dissolved therein has the property of causing the lithium to release solvated electrons and dissolve as cations. When the lithium dissolved in the first liquid precipitates on the first electrode, lithium precipitate particles are generated. The first circulator circulates the first liquid between the first electrode and the first container. The first circulator transfers the lithium precipitate particles generated on the first electrode to the first container. The first passage prevention member is disposed in a channel through which the first liquid flows from the first container to the first electrode. The first passage prevention member prevents passage of the lithium precipitate particles.
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