公开(公告)号：US20190207199A1

公开(公告)日：2019-07-04

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

CPC classification number: H01M4/0404 ,  H01M4/131 ,  H01M4/133 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1397 ,  H01M4/366 ,  H01M4/623 ,  H01M4/624 ,  H01M4/661 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2220/30

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：US10263240B2

公开(公告)日：2019-04-16

申请号：US15290595

申请日：2016-10-11

Applicant: Greatbatch Ltd.

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

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

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：US20210359343A1

公开(公告)日：2021-11-18

申请号：US17246861

申请日：2021-05-03

Applicant: Greatbatch Ltd.

Inventor： Robert S. Rubino ,  Joseph M. Lehnes ,  Marcus J. Palazzo ,  David M. Spillman ,  Ho-Chul Yun

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/0568 ,  H01M4/134 ,  H01M4/54 ,  H01M4/62 ,  H01M10/0525

Abstract: An electrochemical cell having a casing housing an electrode assembly of a separator residing between a lithium anode and a cathode comprising silver vanadium oxide and fluorinated carbon is described. The electrode assembly is activated with a nonaqueous electrolyte comprising a lithium salt dissolved in a solvent system of propylene carbonate mixed with 1,2-dimethoxyethane, dibenzyl carbonate (DBC), lithium bis(oxalato)borate (LiBOB), and fluoroethylene carbonate (FEC). Preferably DBC is present in an amount ranging from about 0.005 moles (M) to about 0.25M, LiBOB is present in an amount ranging from about 0.005 wt. 5 to about 5 wt. %, and FEC is present in an amount ranging from about 0.01 wt. % to about 10 wt. %. This electrolyte formulation is more conductive than the conventional or prior art binary and ternary solvent system electrolytes while being chemically and electrochemically stable toward Li/SVO cells, Li-SVO/CFx mixture cells, and Li-SVO/CFx sandwich cathode primary electrochemical cells.

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：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：US20170104207A1

公开(公告)日：2017-04-13

申请号：US15290595

申请日：2016-10-11

Applicant: Greatbatch Ltd.

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

IPC: H01M4/131 ,  H01M4/485 ,  H01M4/62 ,  H01M4/66 ,  H01M4/133 ,  H01M10/0569 ,  H01M4/583 ,  H01M4/587 ,  H01M4/38 ,  H01M2/16 ,  H01M10/0568 ,  H01M10/0525 ,  H01M4/134

CPC classification number: H01M4/0404 ,  H01M4/131 ,  H01M4/133 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1397 ,  H01M4/366 ,  H01M4/623 ,  H01M4/624 ,  H01M4/661 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2220/30

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.