公开(公告)号：US20180123112A1

公开(公告)日：2018-05-03

申请号：US15341083

申请日：2016-11-02

Applicant: Greatbatch Ltd.

Inventor： Xiangyang Dai ,  Gary Freitag ,  Kenneth L. Grubb ,  Paul T. Hallifax ,  Mark J. Roy ,  Lou Serpe

IPC: H01M2/36 ,  H01M2/02 ,  H01M2/06 ,  H01M10/0525 ,  H01M6/04 ,  B23K26/211

CPC classification number: B23K26/211 ,  B23K2101/38 ,  B23K2103/18 ,  B23K2103/54 ,  H01M2/0217 ,  H01M2/065 ,  H01M2/361 ,  H01M2002/0205

Abstract: The present invention is directed to an electrochemical cell having plate electrodes housed inside a mating “clamshell” casing. When mated together, the casing components are form-fitting with respect to the internal battery structure so as to reduce the overall size of the electrochemical package. A header assembly containing both a glass-to-metal seal opening for a terminal lead and an electrolyte fill opening is used in conjunction with the clamshell casing. The electrolyte fill opening is constructed with an elongated opening with at least two different radii. A first and second sealing element is welded within the electrolyte fill opening at different depths within the header to block the flow of electrolyte and form a hermetic seal.

公开(公告)号：US11355820B2

公开(公告)日：2022-06-07

申请号：US16550367

申请日：2019-08-26

Applicant: Greatbatch Ltd.

Inventor： Xiangyang Steve Dai ,  Kenneth L. Grubb ,  Kenneth B. Talamine ,  Brian D. Panzer

IPC: H01M50/531 ,  B23K11/11 ,  B23K11/20 ,  B23K11/30 ,  B23K11/31 ,  B23K11/28 ,  H01M50/186 ,  H01M50/191 ,  H01M50/543

Abstract: A new weld configuration is used to obtain a robust and consistent resistance weld between the tabs of an anode current collector and the casing of an electrochemical cell. This is done by adding a resistive transferable electrode tip between at least one of the welding electrodes, preferably the movable welding electrode, and the stacked parts that are being joined together. The purpose of the transferable electrode tip is to generate a sufficient amount of heat during the welding process so that the stacked parts are joined together without adding any product functionality. In one embodiment of the present invention, the transferrable electrode tip is a stainless-steel ball, the stacked anode current collector tabs are of nickel, and the cell casing is of stainless-steel.

公开(公告)号：US10109844B2

公开(公告)日：2018-10-23

申请号：US15341083

申请日：2016-11-02

Applicant: Greatbatch Ltd.

Inventor： Xiangyang Dai ,  Gary Freitag ,  Kenneth L. Grubb ,  Paul T. Hallifax ,  Mark J. Roy ,  Lou Serpe

IPC: H01M2/36 ,  H01M2/02 ,  H01M2/06 ,  H01M10/0525 ,  H01M6/04 ,  B23K26/211 ,  B23K101/38 ,  B23K103/00 ,  B23K103/18

Abstract: The present invention is directed to an electrochemical cell having plate electrodes housed inside a mating “clamshell” casing. When mated together, the casing components are form-fitting with respect to the internal battery structure so as to reduce the overall size of the electrochemical package. A header assembly containing both a glass-to-metal seal opening for a terminal lead and an electrolyte fill opening is used in conjunction with the clamshell casing. The electrolyte fill opening is constructed with an elongated opening with at least two different radii. A first and second sealing element is welded within the electrolyte fill opening at different depths within the header to block the flow of electrolyte and form a hermetic seal.

公开(公告)号：US20200067064A1

公开(公告)日：2020-02-27

申请号：US16550367

申请日：2019-08-26

Applicant: Greatbatch Ltd.

Inventor： Xiangyang Dai ,  Kenneth L. Grubb

IPC: H01M2/26 ,  B23K11/11 ,  B23K11/20 ,  B23K11/28 ,  B23K11/30 ,  B23K11/31 ,  H01M2/06 ,  H01M2/30

Abstract: A new weld configuration is used to obtain a robust and consistent resistance weld between the tabs of an anode current collector and the casing of an electrochemical cell. This is done by adding a resistive transferable electrode tip between at least one of the welding electrodes, preferably the movable welding electrode, and the stacked parts that are being joined together. The purpose of the transferable electrode tip is to generate a sufficient amount of heat during the welding process so that the stacked parts are joined together without adding any product functionality. In one embodiment of the present invention, the transferrable electrode tip is a stainless-steel ball, the stacked anode current collector tabs are of nickel, and the cell casing is of stainless-steel.