公开(公告)号：US12249726B2

公开(公告)日：2025-03-11

申请号：US18882266

申请日：2024-09-11

Applicant: Greatbatch Ltd.

Inventor： Gary Freitag ,  Paul T. Hallifax ,  Michael F. Scalise

IPC: H01M50/184 ,  H01M10/04 ,  H01M50/188 ,  H01M50/191 ,  H01M50/562

Abstract: A case-neutral electrochemical cell has an electrode assembly comprising a separator positioned between an anode and a cathode housed inside a casing. The casing supports a co-axial glass-to-metal seal (GTMS) comprising an inner insulating glass hermetically sealed to a terminal pin and to the inner annular surface of an inner ferrule. An outer insulating glass is hermetically sealed to the outer annular surface of the inner ferrule and the inner annular surface of an outer ferrule. The outer ferrule is secured to an opening in the casing. Two methods are described for manufacturing a co-axial GTMS depending on the melting temperatures of the inner and outer insulating glasses. Then, one of the anode and the cathode is connected to the terminal pin and the other of the anode and the cathode is connected to the inner ferrule. An electrolyte is provided in the casing to activate the electrode assembly.

公开(公告)号：US20200185662A1

公开(公告)日：2020-06-11

申请号：US16788679

申请日：2020-02-12

Applicant: Greatbatch Ltd.

Inventor： Robert S. Rubino ,  Keith W. Seitz ,  Xiaohong Tang ,  Todd C. Sutay ,  Brian P. Hohl ,  Holly Noelle Moschiano ,  Biswa P. Das ,  Afsar Ali ,  Sourabh Biswas ,  Gary Freitag ,  David Dianetti ,  Ho-Chul Yun ,  Thomas Marzano

IPC: H01M2/02 ,  H01M2/04 ,  H01M2/06 ,  H01M10/0525 ,  H01M4/131

Abstract: A miniature electrochemical cell having a total volume that is less than 0.5 cc is described. The cell casing is formed by joining two ceramic casing halves together. One or both casing halves are machined from ceramic to provide a recess that is sized and shaped to contain the electrode assembly. The opposite polarity terminals are metal feedthroughs, such as of gold, and are formed by brazing gold into openings machined into one or both of ceramic casing halves. A thin film metallization, such as of titanium, contacts an edge periphery of each ceramic casing half. The first ceramic casing half is moved into registry with the second ceramic casing half so that the first and second ring-shaped metallizations contact each other. Then, a laser welds through one of the casing halves being a substantially transparent ceramic, for example sapphire, to braze the first and second ring-shaped metallizations to each other to thereby join the first and second casing halves together to form a casing housing the electrode assembly. A solid electrolyte (LixPOyNz) activates the electrode assembly.

公开(公告)号：US20170117512A1

公开(公告)日：2017-04-27

申请号：US15398253

申请日：2017-01-04

Applicant: Greatbatch Ltd.

Inventor： Gary Freitag ,  Xiangyang Dai ,  Mark J. Roy ,  Robert S. Rubino

IPC: H01M2/02 ,  H01M2/06 ,  H01M6/14 ,  H01M10/058 ,  H01M4/06 ,  H01M4/134 ,  H01M4/133 ,  H01M4/131 ,  H01M4/136 ,  H01M4/38 ,  H01M4/58 ,  H01M4/587 ,  H01M4/583 ,  H01M4/525 ,  H01M4/505 ,  H01M2/04

CPC classification number: H01M2/0285 ,  H01M2/0217 ,  H01M2/026 ,  H01M2/0426 ,  H01M2/0486 ,  H01M2/06 ,  H01M2/065 ,  H01M4/06 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/382 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/5835 ,  H01M4/587 ,  H01M6/14 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/027 ,  H01M2004/028 ,  Y10T29/4911

Abstract: An electrochemical cell, preferably a secondary, rechargeable cell, including a casing comprised of a main body portion having opposed lower and upper open ends closed by respective lower and upper lids is described. The main body portion is composed of titanium Grades 5 or 23 having a relatively high electrical resistivity material while the lower and upper lids are composed of titanium Grades 1 or 2. The lids are preferably joined to the main body portion using laser welding. The combination of these differing titanium alloys provides a cell casing that effectively retards eddy current induced heating during cell recharging.

公开(公告)号：US12261309B2

公开(公告)日：2025-03-25

申请号：US18599318

申请日：2024-03-08

Applicant: Greatbatch Ltd.

Inventor： Gary Freitag ,  Paul T. Hallifax ,  Michael F. Scalise

IPC: H01M50/191 ,  H01M50/119 ,  H01M50/148 ,  H01M50/152 ,  H01M50/184

Abstract: A case-neutral electrochemical cell has an electrode assembly comprising a separator positioned between an anode and a cathode housed inside a casing. The casing supports a co-axial glass-to-metal seal comprising an inner insulating glass hermetically sealed to a terminal pin and to the inner annular surface of an inner ferrule. An outer insulating glass is hermetically sealed to the outer annular surface of the inner ferrule and the inner annular surface of an outer ferrule, and the outer ferrule is secured to an opening in the casing. Then, one of the anode and the cathode is connected to the terminal pin and the other of the anode and the cathode is connected to the first or inner ferrule. An electrolyte is provided in the casing to activate the electrode assembly.

公开(公告)号：US20220131234A1

公开(公告)日：2022-04-28

申请号：US17505712

申请日：2021-10-20

Applicant: Greatbatch Ltd.

Inventor： Gary Freitag

IPC: H01M50/46 ,  H01M4/587 ,  H01M50/466 ,  H01M50/188 ,  H01M10/0525 ,  H01M50/147 ,  H01M4/54 ,  H01M4/583 ,  H01M50/103

Abstract: An electrochemical cell comprises a casing having an open-ended container closed by a lid. An anode and cathode are housed inside the casing. The cathode housed inside a primary separator envelope is electrically connected to a positive polarity terminal pin electrically isolated from the casing by a glass-to-metal seal. The anode is electrically connected to the casing serving as a negative terminal. The primary separator enveloping the cathode is contained in a secondary separator comprising an open-ended bag-shaped member extending to an open annular edge. The open annular edge of the secondary separator resides between the cathode electrically connected to the terminal pin and the anode electrically connected to the casing. As electrochemical cells become increasingly smaller to power smaller devices, the physical barrier provided by the upper edge of the secondary separator is important to prevent physical contact between the positive and negative terminals. An electrolyte provided in the casing activates the anode and cathode.

公开(公告)号：US10957884B1

公开(公告)日：2021-03-23

申请号：US16240850

申请日：2019-01-07

Applicant: Greatbatch Ltd.

Inventor： David Dianetti ,  Gary Freitag ,  Robert S. Rubino ,  Keith W. Seitz ,  Ho-Chul Yun ,  Todd C. Sutay ,  Brian P. Hohl ,  David Wutz

IPC: H01M2/02 ,  H01M2/08 ,  H01M2/30

Abstract: A miniature electrochemical cell having a total volume that is less than 0.5 cc is described. The casing enclosure consists of a lower plate supporting a cylindrically-shaped can having an open upper end closed with a cover. The can is selectively coated with a dielectric material to provide electrical isolation of the to-be-housed active materials from the can sidewall. A glass-to-metal seal electrically isolates the lower plate from the can. An electrode assembly comprising a sandwich of cathode active material/separator/anode active material is housed in the casing. That way, the lower plate contacting the cathode active material is the positive terminal and the closing cover connected to the can and contacted to the anode active material serves as the negative cell terminal. An electrolyte filled into the casing activates the electrode assembly and the fill opening is sealed with a plug. The cell can be of either a primary or a secondary chemistry.

公开(公告)号：US20190044100A1

公开(公告)日：2019-02-07

申请号：US16152864

申请日：2018-10-05

Applicant: Greatbatch Ltd.

Inventor： Gary Freitag ,  Xiangyang Dai ,  Mark J. Roy ,  Robert S. Rubino

IPC: H01M2/02 ,  H01M2/04 ,  H01M10/0525 ,  H01M4/58 ,  H01M4/134 ,  H01M2/06 ,  H01M4/38

Abstract: An electrochemical cell, preferably a secondary, rechargeable cell, including a casing comprised of a main body portion having opposed lower and upper open ends closed by respective lower and upper lids is described. The main body portion is composed of titanium Grades 5 or 23 having a relatively high electrical resistivity material while the lower and upper lids are composed of titanium Grades 1 or 2. The lids are preferably joined to the main body portion using laser welding. The combination of these differing titanium alloys provides a cell casing that effectively retards eddy current induced heating during cell recharging.

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：US11670816B2

公开(公告)日：2023-06-06

申请号：US17408550

申请日：2021-08-23

Applicant: Greatbatch Ltd.

Inventor： Gary Freitag ,  Joseph M. Prinzbach

IPC: H01M50/171 ,  H01M50/188 ,  H01M50/148

CPC classification number: H01M50/171 ,  H01M50/154 ,  H01M50/188

Abstract: A lid assembly for an electrochemical cell comprises a plate-shaped lid having an opening and a glass-to-metal seal (GTMS) residing in the lid opening. The GTMS does not have a ferrule. Instead, the GTMS has a sealing glass that seals directly to a terminal pin and to the lid. The terminal pin has an enlarged diameter pin section contacted by the sealing glass and a first reduced diameter pin section extending axially outwardly from the enlarged diameter pin section. An electrochemical cell provided with the lid assembly is also described.

公开(公告)号：US10916740B2

公开(公告)日：2021-02-09

申请号：US16152864

申请日：2018-10-05

Applicant: Greatbatch Ltd.

Inventor： Gary Freitag ,  Xiangyang Dai ,  Mark J. Roy ,  Robert S. Rubino

IPC: H01M2/02 ,  H01M10/0525 ,  H01M2/04 ,  H01M2/06 ,  H01M4/134 ,  H01M4/38 ,  H01M4/58 ,  H01M6/14 ,  H01M10/058 ,  H01M4/06 ,  H01M4/133 ,  H01M4/131 ,  H01M4/136 ,  H01M4/587 ,  H01M4/583 ,  H01M4/525 ,  H01M4/505 ,  H01M4/485 ,  H01M4/02

Abstract: An electrochemical cell, preferably a secondary, rechargeable cell, including a casing comprised of a main body portion having opposed lower and upper open ends closed by respective lower and upper lids is described. The main body portion is composed of titanium Grades 5 or 23 having a relatively high electrical resistivity material while the lower and upper lids are composed of titanium Grades 1 or 2. The lids are preferably joined to the main body portion using laser welding. The combination of these differing titanium alloys provides a cell casing that effectively retards eddy current induced heating during cell recharging.