Electrochemical devices and related articles, components, configurations, and methods

Patent metadata

Field	Value
Publication number	US-12255295-B2
Application number	US-202318179926-A
Country	US
Kind code	B2
Filing date	Mar 7, 2023
Priority date	Dec 27, 2018
Publication date	Mar 18, 2025
Grant date	Mar 18, 2025

Abstract

Articles containing electrodes and current collectors arranged such that at least one electrode can be electronically isolated from other components of the article and/or an electrochemical device, and associated systems and methods, are provided. In some cases, the articles contain substrates for which a change in volume of the substrate causes at least one electrode to become electronically isolated from other components of the article and/or an electrochemical device. In certain cases, heating the substrate causes the change in volume of the substrate. Articles and electrochemical devices containing electrodes, current collectors, heaters, and/or sensors and associated systems and methods, are also provided. Electrochemical devices containing electrodes and current collectors arranged in a folded configuration, and associated articles, systems and methods, are also provided.

First claim

What is claimed is:

1. A method, comprising:
heating at least a portion of an electrochemical device using a heater layer that is a part of the electrochemical device, the electrochemical device comprising:
a substrate layer,
a plurality of discrete electrode segments adjacent to the substrate layer, each electrode segment comprising a discrete layer comprising electrode active material, and
a current collector domain comprising a collector bus layer adjacent to the substrate layer, the current collector bus layer electronically coupled to the discrete electrode segments,
wherein the heater layer is a thin film adjacent to the substrate layer, the heater layer having an average thickness that is greater than or equal to 20 nm and less than or equal to 1 mm.

2. The method of claim 1 , wherein the heater layer is immediately adjacent to the substrate layer.

3. The method of claim 1 , wherein the heating step is initiated, at least, in part, in response to a signal from one or more sensors.

4. The method of claim 3 , wherein the one or more sensors are a part of the electrochemical device.

5. The method of claim 3 , wherein the one or more sensors is a sensor layer that is adjacent to the substrate layer.

6. The method of claim 5 , wherein the sensor layer comprises a thin film.

7. A method, comprising:
detecting a condition of an electrochemical device based, at least in part, on a signal from a sensor layer that is a part of the electrochemical device, the electrochemical device comprising:
a substrate layer,
a plurality of discrete electrode segments adjacent to the substrate layer, each electrode segment comprising a discrete layer comprising electrode active material, and
a current collector domain comprising a current collector bus layer adjacent to the substrate layer, the current collector bus layer electronically coupled to the discrete electrode segments;
wherein the sensor layer is a thin film adjacent to the substrate layer, the sensor layer having an average thickness that is greater than or equal to 20 nm and less than or equal to 1 mm.

8. The method of claim 7 , wherein the sensor layer is a temperature sensor and the condition is a temperature.

9. The method of claim 7 , wherein the sensor layer is a pressure sensor and the condition is a pressure.

Assignees

• Sion Power Corp

Inventors

• Laramie Michael G

Classifications

• H01M2200/10

  Temperature sensitive devices · CPC title

• H01M10/443 Primary

  in response to temperature · CPC title

• H01M50/581

  in response to temperature · CPC title

• H01M50/533

  characterised by the shape of the leads or tabs · CPC title

• H01M10/48

  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