Sensored battery electrode

Patent metadata

Field	Value
Publication number	US-11322806-B2
Application number	US-202017017523-A
Country	US
Kind code	B2
Filing date	Sep 10, 2020
Priority date	Sep 13, 2019
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

An electrode tab is described. The electrode tab including a base layer and an outer layer disposed on the base layer. The base layer including a sensor.

First claim

What is claimed is:

1. An electrode tab comprising:
a base layer including a sensor, a battery electrode terminal, one or more sensor terminals, a reference electrode terminal, and a battery electrode interface,
an outer layer formed over the base layer, the outer layer having access points exposing the battery electrode terminal, the one or more sensor terminals, the reference electrode terminal, and the battery electrode interface, the sensor is a patterned layer on the base layer.

2. The electrode tab of claim 1 , wherein the sensor is a resistance temperature detector.

3. The electrode tab of claim 1 , wherein the sensor includes an array of resistance temperature detectors.

4. The electrode tab of claim 3 , wherein the array of resistance temperature detectors includes two or more redundant resistance temperature detectors placed on the electrode tab.

5. The electrode tab of claim 3 , wherein the electrode tab is an anode tab including a reference electrode.

6. The electrode tab of claim 1 , wherein the sensor is a pressure sensor.

7. The electrode tab of claim 6 , wherein the pressure sensor is a strain gauge.

8. The electrode tab of claim 6 , wherein the pressure sensor is a capacitive sensor.

9. The electrode tab of claim 1 , wherein the sensor is formed using a coating.

10. The electrode tab of claim 1 , wherein the sensor is etched onto a surface of the base layer.

11. The electrode tab claim 1 , wherein the electrode tab is a cathode tab including a reference electrode.

12. The electrode tab of claim 1 , wherein the sensor includes an array of one or more of any of a resistance temperature detector, a thermocouple, a thermopile, and thermistor.

13. An electrode tab comprising:
a first tape;
a battery electrode bonded to the first tape;
a sensor attached to the battery electrode by the first tape; and
the sensor is a patterned metal layer on a film.

14. The electrode tab of claim 13 , wherein the sensor is structurally attached to a surface of the battery electrode.

15. The electrode tab of claim 13 , wherein the sensor is electrically coupled to the battery electrode by hot melt tape.

16. The electrode tab of claim 13 , wherein the sensor and battery electrode are co-planar.

17. An electrode tab comprising:
an outer layer; and
a base layer having the outer layer formed on the base layer, the base layer including one or more reference electrodes formed on the base layer, the one or more reference electrodes includes a metallic base layer and a coating formed on the metallic base layer, and the outer layer having access points exposing at least one reference electrode terminal for the one or more reference electrodes.

18. The electrode tab of claim 17 , wherein the coating is fabricated to chemically match a battery electrolyte.

Assignees

• Hutchinson Technology

Inventors

• Riemer Douglas P
• Davis Michael W
• Ladwig Peter F

Classifications

• H01M50/531 Primary

  Electrode connections inside a battery casing · CPC title

• H01M10/48 Primary

  Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) · CPC title

• H01M10/486

  for measuring temperature · CPC title

• H01M50/569

  Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals (battery terminal connectors with integrated measuring arrangements G01R31/364) · CPC title

• G01L9/12

  by making use of variations in capacitance {, i.e. electric circuits therefor} · CPC title