公开(公告)号：US20230187653A1

公开(公告)日：2023-06-15

申请号：US17926760

申请日：2021-04-20

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Katsuya Inoue ,  Takeshi Ogasawara ,  Yoshinori Aoki ,  Youichirou Uka

IPC: H01M4/66 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505

CPC classification number: H01M4/666 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M2004/028

Abstract: A positive electrode for nonaqueous electrolyte secondary batteries according to the present invention is provided with a positive electrode collector and a positive electrode mixture layer that is formed on the surface of the positive electrode collector. The positive electrode mixture layer contains at least carbon fibers and a positive electrode active material that contains a lithium transition metal composite oxide; and the lithium transition metal composite oxide has a layered rock salt structure, while containing at least Ni, Al and Ca, but not substantially containing Co.

公开(公告)号：US20230163292A1

公开(公告)日：2023-05-25

申请号：US17915051

申请日：2021-03-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Youichirou Uka ,  Koh Masahara ,  Tomohiro Harada ,  Rina Yamamoto ,  Tomohisa Okazaki

IPC: H01M4/525 ,  H01M4/505 ,  H01M4/62 ,  H01M4/36 ,  H01M4/38

CPC classification number: H01M4/525 ,  H01M4/505 ,  H01M4/625 ,  H01M4/364 ,  H01M4/386 ,  H01M2004/028

Abstract: This positive electrode for secondary batteries is provided with a positive electrode collector and a positive electrode mixture layer that is arranged on the positive electrode collector. The positive electrode mixture layer contains a positive electrode active material that contains a lithium-transition metal composite oxide and carbon fibers each having an outermost peripheral diameter of 20 nm or less; the lithium-transition metal composite oxide contains 80% by mole or more of Ni relative to the total number of moles of metal elements excluding Li; an alkaline earth metal element is present on the particle surfaces of the oxide; and the content of the carbon fibers relative to the total amount of the positive electrode active material is from 0.01% by mass to 1.0% by mass.

公开(公告)号：US20230048384A1

公开(公告)日：2023-02-16

申请号：US17788097

申请日：2020-10-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koh Masahara ,  Youichirou Uka

IPC: H01M10/0569 ,  H01M10/052 ,  H01M4/36 ,  H01M10/0568 ,  H01M4/525

Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and an electrolyte solution, wherein the positive electrode includes a composite oxide including lithium as a first metal, and a second metal X other than lithium; in the composite oxide, the second metal X includes Ni, Al, and Mn; the second metal X does not contain Co or the atomic ratio Co/X of Co to the second metal X is 0.02 or less; and the electrolyte solution contains a chain carboxylic acid ester having 2 to 4 carbon atoms, and a cyclic compound having a ring structure composed of 2 oxygen atoms and 3 to 5 carbon atoms.

公开(公告)号：US10453619B2

公开(公告)日：2019-10-22

申请号：US15646567

申请日：2017-07-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shintaro Tanimoto ,  Youichirou Uka

IPC: H01G9/15 ,  H01G9/028 ,  H01G9/00 ,  H01G9/042

Abstract: An electrolytic capacitor includes: an anode body; a dielectric layer; a first conductive polymer layer; a second conductive polymer layer; and a first intermediate layer. The dielectric layer is formed on the anode body. The first conductive polymer layer covers at least a part of the dielectric layer. The second conductive polymer layer covers at least a part of the first conductive polymer layer. The first intermediate layer is formed between the first conductive polymer layer and the second conductive polymer layer. The first intermediate layer includes both a cationic agent and an anionic agent, and the first intermediate layer has a first region and a second region, the first region facing the first conductive polymer layer, the second region facing the second conductive polymer layer. The first region contains a greater amount of the anionic agent than the second region, and the second region contains a greater amount of the cationic agent than the first region.

公开(公告)号：US10319532B2

公开(公告)日：2019-06-11

申请号：US15812380

申请日：2017-11-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Youichirou Uka ,  Takafumi Sakida

IPC: H01G9/028 ,  H01G9/042 ,  H01G9/15 ,  H01B1/12 ,  H01G9/00 ,  H01G11/48 ,  H01G11/56 ,  H01G11/52

Abstract: An electrolytic capacitor includes: an anode body; a dielectric layer formed on the anode body; a first conductive polymer layer covering at least a part of the dielectric layer; and a second conductive polymer layer covering at least a part of the first conductive polymer layer. The first conductive polymer layer includes a first conductive polymer and a first dopant. The second conductive polymer layer includes a second conductive polymer, a second dopant and a polycarboxylic acid.

公开(公告)号：US10236130B2

公开(公告)日：2019-03-19

申请号：US15381479

申请日：2016-12-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Youichirou Uka ,  Shintaro Tanimoto

IPC: H01G9/02 ,  H01G9/048 ,  H01G9/028 ,  H01G9/00 ,  H01G9/012 ,  H01G9/15

Abstract: Disclosed is an electrolytic capacitor including: an anode body; a dielectric layer formed over the anode body; a first conductive polymeric layer covering at least one portion of the dielectric layer; a second conductive polymeric layer covering at least one portion of the first conductive polymeric layer; and an intermediate layer formed between the first conductive polymeric layer and the second conductive polymeric layer. The intermediate layer includes a cation agent containing at least one cationic group, and an anion agent containing at least one first anionic group and at least one second anionic group, and the first anionic group is higher in electron-withdrawing property than the second anionic group. The anion agent includes a polymer containing the first anionic group and the second anionic group.

公开(公告)号：US10199176B2

公开(公告)日：2019-02-05

申请号：US15234822

申请日：2016-08-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Youichirou Uka ,  Makoto Nagashima ,  Tetsuro Iwasa ,  Koji Okamoto

IPC: H01G9/15 ,  H01G9/00 ,  H01G9/07 ,  H01G9/028 ,  H01G9/04

Abstract: An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a solid electrolyte layer covering at least a portion of the dielectric layer. The solid electrolyte layer includes a first conductive polymer layer covering at least a portion of the dielectric layer, and a second conductive polymer layer covering at least a portion of the first conductive polymer layer. The second conductive polymer layer includes a second conductive polymer and a water-soluble polymer. The water-soluble polymer is a copolymer including a hydrophilic monomer unit having a hydrophilic group. The hydrophilic group is at least one group selected from the group consisting of a carboxyl group, an acid anhydride group, a phenolic hydroxyl group, and a C2-3 alkylene oxide group.