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：US11990648B2

公开(公告)日：2024-05-21

申请号：US17358076

申请日：2021-06-25

Applicant: Greatbatch Ltd.

Inventor： Daniel M. Baumer ,  Joshua C. Ulrich ,  Marcus J. Palazzo ,  David Wutz ,  David Dianetti

IPC: H01M50/636 ,  H01M6/14 ,  H01M50/153

CPC classification number: H01M50/636 ,  H01M6/14 ,  H01M50/153

Abstract: A miniature electrochemical cell of a primary or secondary chemistry with a total volume that is less than 0.5 cc is described. The cell has a casing comprising an annular sidewall supported on a lower plate opposite an upper lid. The lid has a sealed electrolyte fill port. At least one electrolyte channel in the inner surface of the lid extends radially from the fill port and outwardly beyond an outer peripheral edge of the current collector. A current collector contacts an inner surface of the lid with a first electrode active material contacting the current collector. An opposite polarity active material contacts the lower plate. A dielectric material coats the lower open end of the annular sidewall and a portion of the inner surface of the sidewall. A glass seals the dielectric material to the lower plate. An electrolyte activates the electrode assembly.

公开(公告)号：US20220013876A1

公开(公告)日：2022-01-13

申请号：US17358076

申请日：2021-06-25

Applicant: Greatbatch Ltd.

Inventor： Daniel M. Baumer ,  Joshua C. Ulrich ,  Marcus J. Palazzo ,  David Wutz ,  David Dianetti

IPC: H01M50/636 ,  H01M50/153 ,  H01M6/14

Abstract: A miniature electrochemical cell of a primary or secondary chemistry with a total volume that is less than 0.5 cc is described. The cell has a casing comprising an annular sidewall supported on a lower plate opposite an upper lid. The lid has a sealed electrolyte fill port. At least one electrolyte channel in the inner surface of the lid extends radially from the fill port and outwardly beyond an outer peripheral edge of the current collector. A current collector contacts an inner surface of the lid with a first electrode active material contacting the current collector. An opposite polarity active material contacts the lower plate. A dielectric material coats the lower open end of the annular sidewall and a portion of the inner surface of the sidewall. A glass seals the dielectric material to the lower plate. An electrolyte activates the electrode assembly.