Self-heating bipolar solid-state battery

Patent metadata

Field	Value
Publication number	US-12355049-B2
Application number	US-202217683976-A
Country	US
Kind code	B2
Filing date	Mar 1, 2022
Priority date	Mar 19, 2021
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

The present disclosure provides a solid-state battery including at least one current collector that is in communication with one or more switches configured to move between open and closed positions, where the open position corresponds to a first operational state of the solid-state battery and the closed position corresponds to a second operational state of the solid-state battery; one or more electrodes disposed adjacent to the one or more current collectors; and one or more electrothermal material foils including a resistor material that is in electrical communication with that at least one current collector, where in the first operational state electrons may flow through the one or more electrothermal material foils during cycling of the solid-state battery so as to initiate a heating mode, and in the second operational state electrons may flow through the current collector during cycling of the solid-state battery so as to initiate a non-heating mode.

First claim

What is claimed is:

1. A solid-state battery configured to cycle lithium ions, the solid-state battery comprising:
one or more current collectors, wherein at least one of the one or more current collectors is in communication with one or more switches configured to move between an open position and a closed position, the open position corresponding to a first operational state of the solid-state battery and the closed position corresponding to a second operational state of the solid-state battery;
one or more electrodes disposed adjacent to the one or more current collectors, each electrode having a thickness greater than or equal to about 100 micrometers to less than or equal to about 3,000 micrometers and comprising a plurality of solid-state electroactive material particles;
and one or more electrothermal material foils comprising a resistor material and in electrical communication with the at least one of the one or more current collectors, wherein in the first operational state electrons flow through the one or more electrothermal material foils during cycling of the solid-state battery so as to initiate a heating mode, and in the second operational state electrons flow through the at least one of the one or more current collectors during cycling of the solid-state battery so as to initiate a non-heating mode;
wherein, in the closed position, the at least one of the one or more current collectors is in electrical communication with an external circuit and, in both the opened and closed positions, at least one of the one or more electrothermal material foils are in electrical communication with the external circuit.

2. The solid-state battery of claim 1 , wherein each of the one or more electrothermal material foils has a thickness greater than or equal to about 5 micrometers to less than or equal to about 200 micrometers, and
wherein the resistor material is selected from the group consisting of: nickel, stainless steel, copper, constantan, chromium, aluminum, iron, titanium, graphite, and alloys and combinations thereof.

3. The solid-state battery of claim 1 , wherein at least one of the one or more electrothermal material foils is patterned, the pattern comprising a plurality of void areas.

4. The solid-state battery of claim 1 , wherein the plurality of solid-state electroactive material particles are disposed on or embedded in a porous material having a porosity greater than or equal to about 80 vol. % to less than or equal to about 95 vol. %, an average pore size greater than or equal to about 2 micrometers to less than or equal to about 1,000 micrometers, and a thickness greater than or equal to about 100 micrometers to less than or equal to about 4,000 micrometers.

5. The solid-state battery of claim 4 , wherein the porous material is a metal foam selected from an aluminum (Al) foam, a nickel (Ni) foam, a copper (Cu) foam, a nickel-chromium (Ni—Cr) foam, a nickel-tin (Ni—Sn) foam, and a titanium (Ti) foam.

6. The solid-state battery of claim 4 , wherein the porous material is one of a carbon nanofiber three-dimensional foam, a graphene foam, a carbon cloth, a carbon fiber-embedded carbon nanotubes, and a graphene-nickel foam.

7. The solid-state battery of claim 4 , wherein the one or more electrodes comprise a first electrode and a second electrode, the first electrode comprising a first plurality of solid-state electroactive material particles and the second electrode comprising a second plurality of solid-state electroactive material particles,
wherein the at least one of one or more current collectors is a first current collector, and the first plurality of solid-state electroactive material particles is disposed adjacent to a first surface of the first current collector and the second plurality of solid-state electroactive material particles is disposed adjacent to a second surface of the first current collector that opposes the first surface.

8. The solid-state battery of claim 7 , wherein the first current collector comprises a first film and a second film parallel with the first film, the first film defining the first surface of the first current collector and the second film defining the second surface of the first current collector.

9. The solid-state battery of claim 8 , wherein the first film has a thickness less than or equal to about 10 micrometers and the second film has a thickness less than or equal to about 10 micrometers.

10. The solid-state battery of claim 7 , wherein the first electrode further comprises a plurality of solid-state electrolyte particles that are mixed with the first plurality of solid-state electroactive material particles and the plurality of solid-state electrolyte particles is also disposed on the porous material.

11. The solid-state battery of claim 7 , wherein the first plurality of solid-state electroactive material particles is disposed on a first section of the porous material, and
wherein the second plurality of solid-state electroactive material particles is disposed on a second section of the porous material.

12. The solid-state battery of claim 11 , wherein the plurality of solid-state electrolyte particles mixed with the first plurality of solid-state electroactive material particles is a first plurality of solid-state electrolyte particles, and
wherein the second electrode further comprises a second plurality of solid-state electrolyte particles that is mixed with the second plurality of solid-state electroactive material particles and the second plurality of solid-state electrolyte particles is also disposed on the porous material.

13. The solid-state battery of claim 11 , wherein the first current collector is a film disposed on a third portion of the porous material formed between the first and second portions of the porous material.

14. The solid-state battery of claim 4 , wherein the at least one of the one or more current collectors is a first current collector and the one or more current collectors comprises a second current collector that is parallel with the first current collector;
wherein the one or more electrodes comprise a first electrode comprising a first plurality of solid-state electroactive material particles disposed adjacent to the first current collector, and a second electrode comprising a second plurality of solid-state electroactive material particles disposed adjacent to the second current collector; and
wherein the solid-state battery further comprises a solid-state electrolyte layer comprising a plurality of solid-state electrolyte particles disposed between the first electrode and the second electrode.

15. The solid-state battery of claim 14 , wherein the solid-state electrolyte layer has a thickness greater than or equal to about 5 micrometers to less than or equal to about 100 micrometers and comprises:
a first sublayer comprising a first plurality of solid-state electrolyte particles, and
a second sublayer comprising a second plurality of solid-state electrolyte particles, wherein the first and second sublayers are the same or different.

16. A solid-state battery configured to cycle lithium ion, the solid-state battery comprising:
a first current collector;
a first electrode having a thickness greater than or equal to about 100 micrometers to less than or equal to about 3,000 micrometers disposed adjacent to the first current collector, the first electrode comprising a first plurality of solid-state electroactive material particles disposed on or embedded in a first porous material;
a second current collector parallel with the first current collector, wherein at least one of the first and second cu

Assignees

• Gm Global Tech Operations Llc

Inventors

• Li Zhe
• Que Xiaochao
• Liu Haijing
• Lu Yong
• Wu Meiyuan
• Liu Jingyuan

Classifications

• H01M4/808

  Foamed, spongy materials · CPC title

• H01M10/0585

  of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators · CPC title

• H01M4/663

  containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres · CPC title

• H01M4/661

  Metal or alloys, e.g. alloy coatings (H01M4/669 take precedence) · CPC title

• H01M2004/021

  Physical characteristics, e.g. porosity, surface area · CPC title