Oxyanion-based energy storage

Patent metadata

Field	Value
Publication number	US-2024006644-A1
Application number	US-202318300970-A
Country	US
Kind code	A1
Filing date	Apr 14, 2023
Priority date	Oct 29, 2021
Publication date	Jan 4, 2024
Grant date	—

Abstract

Systems, methods, and device of the various embodiments may support energy storage devices in which electrochemical oxidation and reduction of one or more redox-active oxyanions occurs during charging and/or discharging of the energy storage device.

First claim

What is claimed is:

1 . An electrochemical system, comprising:
a first electrode; and a second electrode, wherein the electrochemical system stores energy and/or discharges energy by an electrode reaction of a halogenated oxyanion species.

2 . The electrochemical system of claim 1 , wherein the storing of energy and/or the discharging of energy by the electrode reaction of the halogenated oxyanion species comprises storing energy and discharging energy by a reversable electrode reaction between a chlorine containing ion and chlorine dioxide.

3 . The electrochemical system of claim 2 , wherein the chlorine containing ion comprises a salt.

4 . The electrochemical system of claim 3 , wherein the salt is an alkali metal salt.

5 . The electrochemical system of any of claim 1 , wherein the electrochemical system comprises a storage battery.

6 . The electrochemical system of any of claim 1 , further comprising a current collector comprising a metal or metal compound.

7 . The electrochemical system of claim 6 , wherein the current collector comprises carbon.

8 . The electrochemical system of any of claim 1 , wherein the system is a bulk energy storage system is a long duration energy storage (LODES) system.

9 . A method of operating an electrochemical system, the method comprising:
storing and/or discharging energy by an electrode reaction of a halogenated oxyanion species.

10 . The method of claim 9 , wherein storing and/or discharging energy by an electrode reaction of a halogenated oxyanion species comprises storing and/or discharging energy by a reversable electrode reaction between a chlorine containing ion and chlorine dioxide.

11 . The method of claim 10 , wherein the chlorine containing ion comprises a salt.

12 . The method of claim 11 , wherein the salt is an alkali metal salt.

13 . The method of any of claim 9 , wherein the storing and/or discharging are performed as part of operating a battery in a bulk energy storage system.

14 . The method of claim 13 , wherein the bulk energy storage system is a long duration energy storage (LODES) system.

15 . An energy storage device, comprising:
negative electrode materials; and positive electrode materials comprising chlorine dioxide and chlorite, wherein the energy storage device is configured to be rechargeable.

16 . The energy storage device of claim 15 , further comprising an electrolyte, wherein the negative electrode materials comprise carbon, zinc, iron, or sulfur.

17 . A bulk energy storage system, comprising the energy storage devices of claim 15 .

18 . The bulk energy storage system of claim 17 , wherein the bulk energy storage system is a long or ultra-long duration energy storage system.

Assignees

• Form Energy Inc

Inventors

• Chiang Merrill K
• Su Liang
• Chiang Yet-Ming
• Woodford William Henry
• Raman Kailash

Classifications

• H01M8/188 Primary

  by recharging of redox couples containing fluids; Redox flow type batteries · CPC title

• H01M4/96

  Carbon-based electrodes · CPC title

• H01M4/9016 Primary

  Oxides, hydroxides or oxygenated metallic salts · CPC title

• H01M2004/8689

  Positive electrodes · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title