公开(公告)号：US20180130978A1

公开(公告)日：2018-05-10

申请号：US15803973

申请日：2017-11-06

Applicant: Greatbatch Ltd.

Inventor： Mark J. Roy ,  Gary Freitag ,  Joseph M. Lehnes ,  David Dianetti

IPC: H01M2/02 ,  H01M6/14 ,  H01M4/38 ,  H01M4/48

CPC classification number: H01M2/0277 ,  H01M2/0202 ,  H01M2/04 ,  H01M2/06 ,  H01M2/14 ,  H01M2/34 ,  H01M4/38 ,  H01M4/382 ,  H01M4/48 ,  H01M6/02 ,  H01M6/14 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2200/00

Abstract: Disclosed herein are electrochemical cells that generally relate to the conversion of chemical energy to electrical energy. More particularly, the present disclosure is directed to primary lithium electrochemical cells possessing insulator pocket structures, which substantially envelope cathode components to prevent lithium cluster formation therein.

公开(公告)号：US11075377B2

公开(公告)日：2021-07-27

申请号：US16295518

申请日：2019-03-07

Applicant: Greatbatch Ltd.

Inventor： Robert S. Rubino ,  William C. Thiebolt ,  Marcus J. Palazzo ,  Joseph M. Lehnes ,  Ho-Chul Yun ,  Mark J. Roy

IPC: H01M4/36 ,  H01M4/131 ,  H01M4/66 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/62 ,  H01M4/136 ,  H01M4/1397 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/04

Abstract: A lithium electrochemical cell with increased energy density is described. The electrochemical cell comprises an improved sandwich cathode design with a second cathode active material of a relatively high energy density but of a relatively low rate capability sandwiched between two current collectors and with a first cathode active material having a relatively low energy density but of a relatively high rate capability in contact with the opposite sides of the two current collectors. In addition, a cathode fabrication process is described that increases manufacturing efficiency. The cathode fabrication process comprises a process in which first and second cathode active materials are directly applied to opposite surfaces of a perforated current collector and laminated together. The present cathode design is useful for powering an implantable medical device requiring a high rate discharge application.

公开(公告)号：US10205151B2

公开(公告)日：2019-02-12

申请号：US15289392

申请日：2016-10-10

Applicant: Greatbatch Ltd.

Inventor： Xiangyang Dai ,  Mark J. Roy

IPC: H01M2/06 ,  H01M2/22 ,  H01M2/26 ,  H01M2/30 ,  B23K26/20 ,  H01M4/38 ,  H01M4/40 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/66 ,  H01M10/052 ,  H01M2/02 ,  B23K101/38

Abstract: A process for creating a laser braze weld joint between a current collector and a terminal pin in the construction of electrochemical cells is described. The laser braze welding process utilizes a laser weld instrument to create a braze-like joint between two work pieces. The weld joint is created by controlling the amount of laser heat and energy imparted to the work pieces through proper control and positioning of the laser beam with respect to the work pieces. Preferably, the method is used to bond the terminal pin to the cathode current collector. This method of attachment is suitable for either primary or secondary cells, particularly those powering implantable biomedical devices.

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：US20160271728A1

公开(公告)日：2016-09-22

申请号：US13867178

申请日：2013-04-22

Applicant: Greatbatch Ltd.

Inventor： Xiangyang Dai ,  Mark J. Roy

IPC: B23K26/20

CPC classification number: B23K26/20 ,  B23K2101/38 ,  H01M2/065 ,  H01M2/22 ,  H01M2/30 ,  H01M4/382 ,  H01M4/405 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5815 ,  H01M4/66

Abstract: A process for creating a laser braze weld joint between a current collector and a terminal pin in the construction of electrochemical cells is described. The laser braze welding process utilizes a laser weld instrument to create a braze-like joint between two work pieces. The weld joint is created by controlling the amount of laser heat and energy imparted to the work pieces through proper control and positioning of the laser beam with respect to the work pieces. Preferably, the method is used to bond the terminal pin to the cathode current collector. This method of attachment is suitable for either primary or secondary cells, particularly those powering implantable biomedical devices.

Abstract translation: 描述了在电化学电池结构中在集电器和端子销之间产生激光钎焊焊接接头的工艺。 激光焊接焊接工艺利用激光焊接仪器在两个工件之间形成钎焊状接头。 通过相对于工件适当地控制和定位激光束来控制施加到工件的激光热量和能量的量来创建焊接接头。 优选地，该方法用于将端子引脚连接到阴极集电器。 这种附接方法适用于初级或次级细胞，特别是为植入式生物医学装置供电的那些。

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.

公开(公告)号：US10224518B2

公开(公告)日：2019-03-05

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

公开(公告)号：US20170033349A1

公开(公告)日：2017-02-02

申请号：US15289392

申请日：2016-10-10

Applicant: Greatbatch Ltd.

Inventor： Xiangyang Dai ,  Mark J. Roy

IPC: H01M2/26 ,  H01M10/0525 ,  H01M2/02 ,  H01M2/06 ,  H01M2/30

CPC classification number: H01M2/26 ,  B23K26/20 ,  B23K2101/38 ,  H01M2/065 ,  H01M2/22 ,  H01M2/30 ,  H01M4/382 ,  H01M4/405 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5815 ,  H01M4/66 ,  H01M10/052 ,  H01M2002/0205 ,  H01M2220/30

Abstract: A process for creating a laser braze weld joint between a current collector and a terminal pin in the construction of electrochemical cells is described. The laser braze welding process utilizes a laser weld instrument to create a braze-like joint between two work pieces. The weld joint is created by controlling the amount of laser heat and energy imparted to the work pieces through proper control and positioning of the laser beam with respect to the work pieces. Preferably, the method is used to bond the terminal pin to the cathode current collector. This method of attachment is suitable for either primary or secondary cells, particularly those powering implantable biomedical devices.

Abstract translation: 描述了在电化学电池结构中在集电器和端子销之间产生激光钎焊焊接接头的工艺。 激光焊接焊接工艺利用激光焊接仪器在两个工件之间形成钎焊状接头。 通过相对于工件适当地控制和定位激光束来控制施加到工件的激光热量和能量的量来创建焊接接头。 优选地，该方法用于将端子引脚连接到阴极集电器。 这种附接方法适用于初级或次级细胞，特别是为植入式生物医学装置供电的那些。

公开(公告)号：US11075388B1

公开(公告)日：2021-07-27

申请号：US16185187

申请日：2018-11-09

Applicant: Greatbatch Ltd.

Inventor： Mark J. Roy ,  Joseph M. Lehnes ,  Marcus J. Palazzo ,  Robert S. Rubino ,  William C. Thiebolt ,  Ho-Chul Yun

IPC: H01M4/74

Abstract: A current collector for an electrochemical cell is described. Unlike conventional current collector designs, the current collector does not have an unperforated perimeter frame completely bordering or surrounding a perforated interior region. Instead, only that portion of the current collector adjacent to the connector tab is unperforated. Otherwise, perforations extend directly to the perimeter edge.

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.