公开(公告)号：US20210344069A1

公开(公告)日：2021-11-04

申请号：US17374993

申请日：2021-07-14

Applicant: FDK CORPORATION

Inventor： Tatsuya Yamazaki ,  Shigeyuki Kuniya

IPC: H01M50/183 ,  H01M6/02 ,  H01M50/152 ,  H01M50/171

Abstract: A sealing gasket used in a tubular battery includes a disc-shaped partition portion; an outer peripheral portion provided to stand from a peripheral edge of the partition portion and held between an open end of a metal battery can and a dish-shaped metal sealing plate; and a plurality of stress buffer portions formed of annular grooves formed concentrically in the partition portion, wherein the tubular battery includes the metal battery can having a bottomed tubular shape and has the open end subjected to inward diameter reduction, a power generation element housed in the battery can, the dish-shaped metal sealing plate fitted and attached to the open end subjected to the inward diameter reduction, and the sealing gasket made of resin and held between the open end and the sealing plate.

公开(公告)号：US12244027B2

公开(公告)日：2025-03-04

申请号：US17374993

申请日：2021-07-14

Applicant: FDK CORPORATION

Inventor： Tatsuya Yamazaki ,  Shigeyuki Kuniya

IPC: H01M50/171 ,  H01M6/02 ,  H01M50/152 ,  H01M50/184 ,  H01M50/186 ,  H01M50/193 ,  H01M50/198

Abstract: A sealing gasket used in a tubular battery includes a disc-shaped partition portion; an outer peripheral portion provided to stand from a peripheral edge of the partition portion and held between an open end of a metal battery can and a dish-shaped metal sealing plate; and a plurality of stress buffer portions formed of annular grooves formed concentrically in the partition portion, wherein the tubular battery includes the metal battery can having a bottomed tubular shape and has the open end subjected to inward diameter reduction, a power generation element housed in the battery can, the dish-shaped metal sealing plate fitted and attached to the open end subjected to the inward diameter reduction, and the sealing gasket made of resin and held between the open end and the sealing plate.

公开(公告)号：US12218340B2

公开(公告)日：2025-02-04

申请号：US17124505

申请日：2020-12-17

Applicant: FDK CORPORATION

Inventor： Yuya Suzuki ,  Shigeyuki Kuniya ,  Takeo Nogami ,  Shingo Anzai ,  Shunji Matsui

IPC: H01M4/24 ,  H01M4/26 ,  H01M10/26

Abstract: An alkaline battery and a method of producing an alkaline battery that includes a negative electrode gel in which a negative electrode active material made of a zinc alloy and a binder are dispersed in an alkaline aqueous solution. Ultrafine microfibrils form the binder.

公开(公告)号：US11594740B2

公开(公告)日：2023-02-28

申请号：US16440964

申请日：2019-06-13

Applicant: FDK CORPORATION

Inventor： Tatsuya Yamazaki ,  Shigeyuki Kuniya

IPC: H01M6/08 ,  H01M50/30 ,  H01M50/342 ,  H01M50/586 ,  H01M50/593 ,  H01M50/198 ,  H01M50/193 ,  H01M50/184 ,  H01M50/186 ,  H01M50/559

Abstract: A resin sealing gasket 10 to be incorporated in an alkaline battery 1 housing a power generation element (3 to 5) in a cylindrical battery can 2 closed at a bottom, the sealing gasket configured to insulate a top opening of the battery can and a negative electrode terminal plate 7 from each other. The sealing gasket includes: an outer periphery part 14 standing upward from the rim of a disc-shaped partition part 13; a boss part 11 in a hollow cylindrical shape enabling a rod-shaped negative electrode current collector 6 to stand at the center of the partition part; and a thin-walled portion 15 formed in a groove shape along the outer periphery of the boss part and being thinner than other portions of the partition part.

公开(公告)号：US20210104734A1

公开(公告)日：2021-04-08

申请号：US17124505

申请日：2020-12-17

Applicant: FDK CORPORATION

Inventor： Yuya Suzuki ,  Shigeyuki Kuniya ,  Takeo Nogami ,  Shingo Anzai ,  Shunji Matsui

IPC: H01M4/24 ,  H01M10/26 ,  H01M4/26

Abstract: An alkaline battery and a method of producing an alkaline battery that includes a negative electrode gel in which a negative electrode active material made of a zinc alloy and a binder are dispersed in an alkaline aqueous solution. Ultrafine microfibrils form the binder.

公开(公告)号：US20190296278A1

公开(公告)日：2019-09-26

申请号：US16440964

申请日：2019-06-13

Applicant: FDK CORPORATION

Inventor： Tatsuya Yamazaki ,  Shigeyuki Kuniya

IPC: H01M2/08 ,  H01M2/12 ,  H01M2/30 ,  H01M2/34 ,  H01M6/08

Abstract: A resin sealing gasket 10 to be incorporated in an alkaline battery 1 housing a power generation element (3 to 5) in a cylindrical battery can 2 closed at a bottom, the sealing gasket configured to insulate a top opening of the battery can and a negative electrode terminal plate 7 from each other. The sealing gasket includes: an outer periphery part 14 standing upward from the rim of a disc-shaped partition part 13; a boss part 11 in a hollow cylindrical shape enabling a rod-shaped negative electrode current collector 6 to stand at the center of the partition part; and a thin-walled portion 15 formed in a groove shape along the outer periphery of the boss part and being thinner than other portions of the partition part.

公开(公告)号：US10217970B2

公开(公告)日：2019-02-26

申请号：US15717960

申请日：2017-09-28

Applicant: FDK CORPORATION

Inventor： Shigeyuki Kuniya ,  Takuya Suzuki

IPC: H01M2/02 ,  B32B15/01 ,  C25D5/50 ,  C25D7/00 ,  C22C38/00 ,  H01M6/08 ,  H01M10/24 ,  H01M6/04

Abstract: A battery can forming steel plate that configures an electrode can (a positive electrode can) of an alkaline battery and is to be formed into a battery can by presswork, the steel plate as a base material includes an iron and nickel diffusion layer or an iron and nickel-cobalt alloy diffusion layer that is formed by forming a nickel plated layer or a nickel-cobalt alloy plated layer with a thickness of 0.5 to 2.0 μm on an inner surface of a battery can of a steel plate (base material steel plate) as a base material, and subsequently performing heat diffusion treatment on the nickel plated layer or the nickel-cobalt alloy plated layer. An average number of crystal grains per 0.25 mm2 unit area of the steel plate as the base material is equal to or more than 12.3.

公开(公告)号：US20180019446A1

公开(公告)日：2018-01-18

申请号：US15717960

申请日：2017-09-28

Applicant: FDK CORPORATION

Inventor： Shigeyuki Kuniya ,  Takuya Suzuki

IPC: H01M2/02 ,  B32B15/01 ,  H01M10/24

CPC classification number: H01M2/02 ,  B32B15/015 ,  B32B2457/10 ,  C22C38/00 ,  C25D5/50 ,  C25D7/00 ,  H01M2/026 ,  H01M2/0287 ,  H01M2/0292 ,  H01M6/04 ,  H01M6/08 ,  H01M6/085 ,  H01M10/24

Abstract: As a battery can forming steel plate that configures an electrode can (a positive electrode can) of an alkaline battery and is to be formed into a battery can by presswork, the steel plate as a base material includes an iron and nickel diffusion layer or an iron and nickel-cobalt alloy diffusion layer that is formed by forming a nickel plated layer or a nickel-cobalt alloy plated layer with a thickness of 0.5 to 2.0 μm on an inner surface of a battery can of a steel plate (base material steel plate) as a base material, and subsequently performing heat diffusion treatment on the nickel plated layer or the nickel-cobalt alloy plated layer. An average number of crystal grains per 0.25 mm2 unit area of the steel plate as the base material is equal to or more than 12.3.