公开(公告)号：US11258087B2

公开(公告)日：2022-02-22

申请号：US16655176

申请日：2019-10-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuka Okada ,  Shinji Ando ,  Sho Shibata

IPC: H01M8/18 ,  H01M8/1044 ,  H01M8/10

Abstract: The present disclosure provides a flow battery comprising a flexible lithium ion conductive film having durability against a highly reductive non-aqueous electrolyte liquid. The flow battery according to the present disclosure comprises a first non-aqueous electrolyte liquid, a first electrode, a second electrode, and a lithium ion conductive film. The first non-aqueous electrolyte liquid contains lithium ions and further biphenyl, phenanthrene, stilbene, triphenylene, anthracene, acenaphthene, acenaphthylene, fluorene, fluoranthene, o-terphenyl, m-terphenyl, or p-terphenyl. The lithium ion conductive film comprises a composite body. The composite body contains a lithium ion conductive polymer and polyvinylidene fluoride. The lithium ion conductive polymer includes an aromatic ring into which a lithium salt of an acidic group has been introduced. The lithium ion conductive polymer and the polyvinylidene fluoride have been mixed with each other homogeneously in the composite body.

公开(公告)号：US20230070559A1

公开(公告)日：2023-03-09

申请号：US17794356

申请日：2021-01-21

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Sho Shibata ,  Hirotetsu Suzuki ,  Motohiro Sakata

IPC: H01M10/0567 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/62

Abstract: An additive for a nonaqueous electrolyte includes a bis-alkoxysilyl compound having two or more silyl groups coupled with an alkylene group or an amino group, the two or more silyl groups each has at least one selected from the group consisting of an alkoxy group and an oxyalkyl group, and the oxyalkyl group is represented by —O—(CxH2x+1Oy), where x is an integer of 1 or more, and y is an integer of 1 or more.

公开(公告)号：US20240356026A1

公开(公告)日：2024-10-24

申请号：US18686553

申请日：2022-08-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Sho Shibata

IPC: H01M4/58 ,  H01M4/02 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/5825 ,  H01M4/366 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: The disclosed negative electrode active material for a non-aqueous electrolyte secondary battery includes active material particles containing silicon, and a surface layer formed on surfaces of the active material particles. The surface layer contains a reaction product of a compound reacted so as to form a siloxane bond. The compound includes a structure represented by Si—R1—Si. R1 is a hydrocarbon group having 1 to 50 carbon atoms. The two Si's are each bound with at least one atomic group selected from the group consisting of an alkoxy group having 1 to 6 carbon atoms, and the like.

公开(公告)号：US20240222606A1

公开(公告)日：2024-07-04

申请号：US18557308

申请日：2022-04-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Sho Shibata ,  Hirotetsu Suzuki ,  Motohiro Sakata

IPC: H01M4/36 ,  C01B33/32 ,  C07F7/18 ,  H01M4/02 ,  H01M4/38 ,  H01M4/58 ,  H01M4/60 ,  H01M4/62

CPC classification number: H01M4/366 ,  C01B33/32 ,  C07F7/1804 ,  H01M4/386 ,  H01M4/5825 ,  H01M4/60 ,  C01P2006/40 ,  H01M2004/027 ,  H01M4/625

Abstract: The disclosed negative electrode active material for a nonaqueous electrolyte secondary battery includes active material particles containing silicon, and a surface layer formed on surfaces of the active material particles. The surface layer contains a reaction product of a compound allowed to react so as to form a siloxane bond. The compound includes a structure represented by Si-R1-Si. The R1 is an atomic group having a chain portion including, as constituent elements, an alkylene group and at least one selected from the group consisting of a sulfur atom, an oxygen atom, and a nitrogen atom. The two Si's are each bound with at least one atomic group selected from the group consisting of an alkoxy group having 1 to 6 carbon atoms, and the like.

公开(公告)号：US20230091033A1

公开(公告)日：2023-03-23

申请号：US17795174

申请日：2021-01-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Sho Shibata ,  Hirotetsu Suzuki ,  Motohiro Sakata

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/38

Abstract: An additive for a nonaqueous electrolyte includes a bis-alkoxysilyl compound, wherein the bis-alkoxysilyl compound has two silyl groups coupled with a chain including a sulfide group, the two silyl groups each has at least one selected from the group consisting of an alkoxy group and an oxyalkyl group, and the oxyalkyl group is represented by —O—(CxH2x+1Oy), where x is an integer of 1 or more, and y is an integer of 1 or more.

公开(公告)号：US20230395852A1

公开(公告)日：2023-12-07

申请号：US18034172

申请日：2021-10-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Sho Shibata ,  Hirotetsu Suzuki ,  Motohiro Sakata

IPC: H01M10/0567 ,  H01M4/134 ,  H01M4/38 ,  H01M10/052 ,  C07F7/18

CPC classification number: H01M10/0567 ,  H01M4/134 ,  H01M4/386 ,  H01M10/052 ,  C07F7/1804

Abstract: An alkoxysilyl compound includes two or more silyl groups bonded with a chain including an ether group, wherein the two or more silyl groups each has at least one selected from the group consisting of an alkoxy group and an oxy alkyl group. The alkoxysilyl compound is added to a non-aqueous electrolyte as an additive for a non-aqueous electrolyte.

公开(公告)号：US11322769B2

公开(公告)日：2022-05-03

申请号：US16931325

申请日：2020-07-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shuji Ito ,  Masahisa Fujimoto ,  Honami Sako ,  Sho Shibata

IPC: H01M8/18 ,  H01M4/40 ,  H01M10/38

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：US10833346B2

公开(公告)日：2020-11-10

申请号：US16418350

申请日：2019-05-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuka Okada ,  Shinji Ando ,  Sho Shibata

IPC: H01M8/18 ,  H01M8/0221 ,  H01M8/04186

Abstract: The flow battery according to the present disclosure comprises a first non-aqueous liquid, a first electrode in contact with the first non-aqueous liquid, a second electrode which serves as a counter electrode of the first electrode, and a lithium ion conductive film which separates the first electrode and the second electrode from each other. The lithium ion conductive film is formed of a polymer base material containing an ionic polymer. The polymer base material has an interspace which communicates with an outside thereof. The polymer base material is formed of at least one kind of resin selected from the group consisting of a thermosetting resin and a thermoplastic resin which has a melting point of not less than 150 degrees Celsius. The ionic polymer is contained in an inside of the interspace of the polymer base material. The ionic polymer is represented by where n1 and n2 are, each independently, natural numbers of not less than 1, or where m1, m2, n1, and n2 are, each independently, natural numbers of not less than 1. The flexible lithium ion conductive film having a low swelling property when in contact with a non-aqueous liquid.