Cell and method for production thereof

Patent metadata

Field	Value
Publication number	US-2022407124-A1
Application number	US-202217828099-A
Country	US
Kind code	A1
Filing date	May 31, 2022
Priority date	Jun 17, 2021
Publication date	Dec 22, 2022
Grant date	—

Abstract

An electrochemical cell capable of energy storage, includes: a housing that encloses an interior space, a composite body arranged in the interior space and formed from at least two electrodes and at least one separator, and an RFID transponder, the memory of which contains data about the cell.

First claim

What is claimed is:

1 . An electrochemical cell capable of energy storage, comprising:
a housing that encloses an interior space, a composite body arranged in the interior space and formed from at least two electrodes and at least one separator, and an RFID transponder, the memory of which contains data about the cell.

2 . The cell according to claim 1 , wherein at least one of:
a. the data allow unambiguous identification of the cell, b. the data allow assignment of the cell to a machine which was used in production of the cell, and c. the data comprise information about components of the cell about the composite body and/or the at least two electrodes.

3 . The cell according to claim 1 , wherein at least one of:
a. the composite body is a cylindrical winding in which the at least two electrodes and the at least one separator are tape-shaped and spirally rolled-up, b. the composite body comprises an axial cavity, c. the RFID transponder is arranged in the axial cavity, and d. the RFID transponder is a winding core or part of a winding core.

4 . The cell according to claim 1 , wherein:
a. the composite body is a cylindrical winding in which the at least two electrodes and the at least one separator are tape-shaped and spirally rolled-up, b. the RFID transponder is integrated in an adhesive strip or arranged on an adhesive strip, which adhesive strip is adhered to the winding on the lateral surface, and c. the winding is held together by the adhesive strip.

5 . The cell according to claim 1 , wherein at least one of:
a. the housing is a cylindrical metal housing comprising a circumferential lateral housing surface and, at the end faces, a circular bottom and a lid, b. the bottom and/or the lateral housing surface are covered by an electrically insulating layer on their outer face, and c. the RFID transponder is arranged between the bottom and the electrically insulating layer or between the lateral housing surface and the electrically insulating layer or is integrated in the electrically insulating layer.

6 . The cell according to claim 1 , wherein at least one of:
a. the housing is a cylindrical metal housing comprising a circumferential lateral housing surface and, at the end faces, a circular bottom and a lid, b. the RFID transponder is integrated in an electrically insulating ring or is a ring arranged on the lid, and c. the ring is fixed on the lid by heat-shrink tubing applied to the lateral housing surface.

7 . A method of producing an electrochemical cell capable of energy storage, comprising:
forming a housing that encloses an interior space, arranging a composite body in the interior space and formed from at least two electrodes and at least one separator, equipping the cell with an RFID transponder, the memory of which contains information about the cell.

8 . The method according to claim 7 , wherein at least one of:
a. the composite body is a cylindrical winding in which the at least two electrodes and the at least one separator are tape-shaped and spirally rolled-up, b. the composite body comprises an axial cavity, and c. the RFID transponder is arranged in the axial cavity.

9 . The method according to claim 7 , wherein at least one of:
a. the RFID transponder is a winding core or part of a winding core, and b. the at least two electrodes and the at least one separator are tape-shaped and are spirally rolled up on the winding core to form the composite body, resulting in a cylindrical winding.

10 . The method according to claim 7 , wherein at least one of:
a. the at least two electrodes and the at least one separator are tape-shaped and are spirally rolled up to form the composite body, resulting in a cylindrical winding, b. the winding is held together by an adhesive strip adhered to the winding on the lateral surface, and c. the RFID transponder is integrated in the adhesive strip or arranged on the adhesive strip.

11 . The method according to claim 7 , wherein at least one of:
a. the housing is a cylindrical metal housing comprising a circumferential lateral housing surface and, at the end faces, a circular bottom and a lid, b. the bottom and/or the lateral housing surface are covered by an electrically insulating layer on their outer face, and c. the RFID transponder is arranged between the bottom and the electrically insulating layer or between the lateral housing surface and the electrically insulating layer or it is integrated in the electrically insulating layer.

12 . The method according to claim 7 , wherein at least one of:
a. the housing is a cylindrical metal housing comprising a circumferential lateral housing surface and, at the end faces, a circular bottom and a lid, b. the RFID transponder is integrated in an electrically insulating ring or is a ring, the ring being arranged on the lid, and c. the ring is fixed on the lid by heat-shrink tubing applied to the lateral housing surface.

Assignees

• Varta Microbattery Gmbh

Inventors

• Elmer Martin
• Renschler Philipp

Classifications

• G06K19/07773

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• H01M10/0427

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• H01M2010/4278

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• H01M10/48 Primary

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