公开(公告)号：US11936054B2

公开(公告)日：2024-03-19

申请号：US17724273

申请日：2022-04-19

Applicant: GS Yuasa International Ltd.

Inventor： Yukio Enomoto

IPC: H01M50/147 ,  H01M50/15 ,  H01M50/531 ,  H01M50/533 ,  H01M50/55 ,  H01M50/176 ,  H01M50/505 ,  H01M50/51 ,  H01M50/516 ,  H01M50/536 ,  H01M50/553 ,  H01M50/566

CPC classification number: H01M50/147 ,  H01M50/15 ,  H01M50/531 ,  H01M50/533 ,  H01M50/176 ,  H01M50/505 ,  H01M50/51 ,  H01M50/516 ,  H01M50/536 ,  H01M50/55 ,  H01M50/553 ,  H01M50/566 ,  H01M2220/20

Abstract: An energy storage device includes an outer case including a lid plate on which an external terminal is mounted, a plate including a tab and housed in the outer case, a conductive shaft portion penetrating the lid plate and including one end thereof connected to the external terminal, and a conductive plate portion housed in the outer case, and including a first surface to which an other end of the conductive shaft portion is connected and a second surface to which the tab is connected. A size of the conductive plate portion is set larger than a size of the external terminal in a planar direction of the lid plate.

公开(公告)号：US11462788B2

公开(公告)日：2022-10-04

申请号：US16635510

申请日：2018-07-24

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Yukio Enomoto ,  Hayato Usui

IPC: B23K20/10 ,  H01M50/16 ,  H01M50/166 ,  H01M50/147 ,  H01M50/543 ,  B23K103/10 ,  B23K101/36

Abstract: Provided is a method for manufacturing an energy storage device. In the method of manufacturing an energy storage device, a lid assembly is formed by integrating a lid plate covering an opening of a case which houses a plate, an external terminal exposed to outside of the lid plate, and a conductive plate portion disposed inside the lid plate in an overlapping manner. The lid assembly is disposed between a vibrating jig and a receiving jig, a tab of the plate is disposed between the conductive plate portion and the vibrating jig, and ultrasonic welding is applied to the tab and the conductive plate portion.

公开(公告)号：US20190393453A1

公开(公告)日：2019-12-26

申请号：US16481171

申请日：2018-01-25

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Yukio Enomoto ,  Kenji Kawate

IPC: H01M2/02 ,  H01M2/26 ,  H01M2/30 ,  H01M2/10 ,  H01M2/34 ,  H01M10/058 ,  H01M2/04

Abstract: To provide an energy storage device where internal short circuiting of an electrode assembly can be prevented while ensuring easy assembling of the energy storage device. An energy storage device according to an aspect of the present invention includes: an electrode assembly which has an electrode assembly body formed by stacking a positive electrode plate, a separator and a negative electrode plate, and tabs extending from the positive electrode plate and the negative electrode plate; a case formed of a case body which accommodates the electrode assembly therein and a lid plate which closes the case body; an external terminal fixed to the lid plate and electrically connected to the tab; a spacer disposed between the electrode assembly body and the lid plate and having rigidity; and a porous cushion sheet disposed between the spacer and the electrode assembly body having cushioning property, wherein the cushion sheet is welded to the spacer.

公开(公告)号：US11329337B2

公开(公告)日：2022-05-10

申请号：US16633531

申请日：2018-07-24

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Yukio Enomoto

IPC: H01M50/15 ,  H01M50/172 ,  H01M50/147 ,  H01M50/531 ,  H01M50/543

Abstract: Provided is an energy storage device which can sufficiently reduce a resistance of a current path. An energy storage device includes: an outer case having a lid plate on which an external terminal is mounted; a plate having a tab and housed in the outer case; a conductive shaft portion penetrating the lid plate and having one end thereof connected to the external terminal; and a conductive plate portion housed in the outer case, and having a first surface to which the other end of the conductive shaft portion is connected and a second surface to which the tab is connected, wherein a size of the conductive plate portion and a size of the tab are respectively set larger than a size of the external terminal in a planar direction of the lid plate.

公开(公告)号：US11011798B2

公开(公告)日：2021-05-18

申请号：US16311609

申请日：2017-06-23

Applicant: GS Yuasa International Ltd.

Inventor： Yukio Enomoto

IPC: H01M2/18 ,  H01M2/34 ,  H01M10/058 ,  H01G11/26 ,  H01G11/78 ,  H01M50/463

Abstract: An energy storage device includes: an electrode assembly; a case for accommodating the electrode assembly; a spacer interposed between the case and the electrode assembly; and a strip-like member being brought into contact with each of a side surface of the spacer and a side surface of the electrode assembly and fixing the spacer and the electrode assembly to each other. A portion of the spacer with which the strip-like member is brought into contact is wholly formed of a recessed portion.