MINIATURE ELECTROCHEMICAL CELL HAVING A CASING OF A CONDUCTIVE PLATE CLOSING AN OPEN-ENDED CERAMIC CONTAINER HAVING A VIA HOLE SUPPORTING A PLATINUM-CONTAINING CONDUCTIVE PATHWAY

    公开(公告)号:US20210111382A1

    公开(公告)日:2021-04-15

    申请号:US16653247

    申请日:2019-10-15

    申请人: Greatbatch Ltd.

    IPC分类号: H01M2/04 H01M2/06 H01M2/02

    摘要: A miniature electrochemical cell having a volume of less than 0.5 cc is described. The cell casing comprises an open-ended ceramic container having a via hole providing an electrically conductive pathway extending through the container. A metal lid closes the open-end of the container. An electrode assembly housed inside the casing comprises an anode current collector deposited on an inner surface of the ceramic container in contact with the electrically conductive pathway in the via hole. An anode active material contacts the current collector and a cathode active material contacts the metal lid. A separator is disposed between the anode and cathode active materials. That way, the electrically conductive pathway serves as a negative terminal, and the lid, electrically isolated from the conductive pathway by the ceramic container, serves as a positive terminal. The negative and positive terminals are configured for electrical connection to a load.

    MINIATURE ELECTROCHEMICAL CELL HAVING A CASING OF A CONDUCTIVE PLATE CLOSING AN OPEN-ENDED CERAMIC CONTAINER HAVING TWO VIA HOLES SUPPORTING OPPOSITE POLARITY PLATINUM-CONTAINING CONDUCTIVE PATHWAYS

    公开(公告)号:US20210119189A1

    公开(公告)日:2021-04-22

    申请号:US16655286

    申请日:2019-10-17

    申请人: Greatbatch Ltd.

    摘要: A miniature electrochemical cell having a volume of less than 0.5 cc is described. The cell casing comprises an open-ended ceramic container having first and second via holes providing respective first and second electrically conductive pathways extending through the container. A metal lid secured to the open-end of the container by a gold seal provides the cell casing. An electrode assembly housed inside the casing comprises a cathode active material deposited on an inner surface of the ceramic container in contact with a current collector in electrical continuity with one of the conductive pathways. A solid electrolyte, preferably of LiPON (LixPOyNz), is deposited on the cathode active material followed by an anode active material in contact with the other conductive pathway. The first and second conductive pathways can comprise platinum or gold. That way, the first and second conductive pathways serve as negative and positive terminals for the cell. The negative and positive terminals are configured for electrical connection to a load.