-
公开(公告)号：US12300784B2
公开(公告)日：2025-05-13
申请号：US17705446
申请日：2022-03-28
Inventor： Honami Sako , Masahisa Fujimoto
IPC: H01M10/0565 , H01M10/0525 , H01M10/0568 , H01M10/0569
Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte disposed between the positive electrode and the negative electrode. The electrolyte includes a polymeric electrolyte. The polymeric electrolyte is composed of a polymer and a lithium salt of a fluorosulfonyl-group-containing compound, and the polymer is a polymer of a vinylene carbonate species. The lithium salt of a fluorosulfonyl-group-containing compound includes lithium bis(fluorosulfonyl)imide.
-
公开(公告)号：US20240055600A1
公开(公告)日：2024-02-15
申请号：US18262039
申请日：2021-10-21
Inventor： Masahisa Fujimoto , Takashi Oto
IPC: H01M4/58 , H01M10/0569
CPC classification number: H01M4/58 , H01M10/0569 , H01M4/661
Abstract: A battery includes: a first electrode; a second electrode; and an electrolytic solution, wherein the first electrode includes a current collector and an active material layer, the active material layer contains Bi as a main component of an active material, and the electrolytic solution contains at least one selected from the group consisting of vinylene carbonate and fluoroethylene carbonate.
-
公开(公告)号：US11791498B2
公开(公告)日：2023-10-17
申请号：US16989906
申请日：2020-08-11
Inventor： Masahisa Fujimoto
IPC: H01M10/0567 , H01M4/134 , H01M10/0525 , H01M10/0569 , H01M4/38 , H01M4/02 , H01M50/417 , H01M50/497
CPC classification number: H01M10/0567 , H01M4/134 , H01M10/0525 , H01M10/0569 , H01M4/38 , H01M4/382 , H01M4/386 , H01M50/417 , H01M50/497 , H01M2004/027 , H01M2300/0028 , H01M2300/0037
Abstract: The lithium secondary battery of the present disclosure comprises an anode including an anode current collector and an anode active material; an electrolyte liquid; and a cathode including a cathode active material layer disposed on a cathode current collector. The anode includes a material capable of forming an alloy with lithium during charge. The electrolyte liquid contains lithium ions and the counter anions thereof, contains at least one substance selected from the group consisting of phenanthrene, biphenyl, triphenylene, acenaphthene, acenaphthylene, fluoranthene, and benzyl at a concentration of not less than 0.00625 mol/L and not more than 0.05 mol/L, and includes, as a solvent, at least one selected from the group consisting of a cyclic ether, a glyme, and a sulfolane.
-
公开(公告)号：US11322769B2
公开(公告)日：2022-05-03
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+.
-
公开(公告)号：US20250087678A1
公开(公告)日：2025-03-13
申请号：US18272723
申请日：2021-10-21
Inventor： Masahisa Fujimoto , Takashi Oto
Abstract: Provided is a battery including: a first electrode; a second electrode; and an electrolyte layer located between the first electrode and the second electrode, wherein the first electrode includes: a current collector; and an active material layer located between the current collector and the electrolyte layer, the active material layer contains Bi as a main component of an active material, and the active material has a density of from 6.0 g/cm3 to 9.8 g/cm3, inclusive.
-
Patent Agency Ranking
公开(公告)号：US20220336799A1
公开(公告)日：2022-10-20
申请号：US17763934
申请日：2020-09-29
Inventor： Yukihiro Oki , Masahisa Fujimoto
Abstract: A nonaqueous electrolyte secondary battery according to the present invention is provided with a negative electrode, a positive electrode and a nonaqueous electrolyte. A negative electrode active material contained in the negative electrode contains a zinc manganese alloy that is represented by general formula MnZnx (3≤x≤13).
-
公开(公告)号：US11374249B2
公开(公告)日：2022-06-28
申请号：US16167532
申请日：2018-10-23
Inventor： Masahisa Fujimoto , Shuji Ito
IPC: H01M8/18 , H01M8/22 , H01M8/04186 , H01M4/38 , H01M8/023 , H01M8/04276 , H01M8/20
Abstract: A flow battery according to one aspect of the present disclosure includes: a first liquid containing dissolved therein a charge mediator and a discharge mediator; a first electrode immersed in the first liquid; and a first active material immersed in the first liquid. The equilibrium potential of the charge mediator is lower than the equilibrium potential of the first active material, and the equilibrium potential of the discharge mediator is higher than the equilibrium potential of the first active material.
-
公开(公告)号：US11239482B2
公开(公告)日：2022-02-01
申请号：US16542296
申请日：2019-08-15
Inventor： Shuji Ito , Masahisa Fujimoto , Haruko Kubota , Norihiko Kawabata
IPC: H01M8/18 , H01M8/04186
Abstract: The flow battery in an aspect of the present disclosure includes a first liquid containing a lithium ion and a first redox material, a first electrode in contact with the first liquid, a second electrode functioning as a counter electrode of the first electrode, an isolation unit that isolates the first electrode and the second electrode from each other, a first chamber, and a first circulation mechanism for circulating the first liquid between the first electrode and the first chamber, and in the flow battery, the first liquid is non-aqueous and the first circulation mechanism includes a magnetically driven pump.
-
公开(公告)号：US10476107B2
公开(公告)日：2019-11-12
申请号：US15634059
申请日：2017-06-27
Inventor： Masahisa Fujimoto
IPC: H01M10/056 , H01M10/0567 , H01M4/587 , H01M10/0525
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.
-
公开(公告)号：US09825297B2
公开(公告)日：2017-11-21
申请号：US14893029
申请日：2014-05-22
Inventor： Akira Kano , Nobuhiko Hojo , Masahisa Fujimoto
IPC: H01M4/587 , H01M4/133 , H01M10/054 , C01B31/02 , H01M4/02
CPC classification number: H01M4/587 , C01B32/05 , H01M10/054 , H01M2004/021 , H01M2004/027
Abstract: A negative-electrode active material for a sodium-ion secondary battery contains a porous carbon material which has a plurality of open pores that extend through to the surface, a plurality of closed pores that do not extend through to the surface, and a solid made of carbon material. The distance between (002) planes of the solid portion is not less than 0.340 nm and not more than 0.410 nm. The plurality of closed pores account for a volume ratio of not less than 0% and not more than 10% with respect to a total volume of the plurality of open pores, the plurality of closed pores, and the solid portion. The plurality of open pores account for a volume ratio of not less than 0% and not more than 50% with respect to a total volume of the plurality of open pores, the plurality of closed pores, and the solid portion.
-
-
-
-
-
-
-
-
-
Search Results
22
records
(took 0.019 seconds)
