The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 05, 2024

Filed:

Oct. 24, 2023
Applicant:

South 8 Technologies, Inc., San Diego, CA (US);

Inventors:

Cyrus S. Rustomji, San Diego, CA (US);

Jungwoo Lee, San Diego, CA (US);

James Royer, San Diego, CA (US);

Miguel Ceja, Manteca, CA (US);

Assignee:

South 8 Technologies, Inc., San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0569 (2010.01); H01M 10/0567 (2010.01); H01M 50/183 (2021.01);
U.S. Cl.
CPC ...
H01M 10/0567 (2013.01); H01M 10/0569 (2013.01); H01M 50/183 (2021.01); H01M 2300/0028 (2013.01);
Abstract

A safe electrolyte comprising a liquefied gas solvent that will transition from a liquid state to a gas state ('gas off') at a pressure of 100 kPa and a temperature of 293.15 K is disclosed. A first mixture is formed from a first electrolyte component (one or more solvents) mixed with a second electrolyte component (one or more hydrocarbon co-solvents). The addition of the second electrolyte component (1) lowers the vapor pressure of the first mixture by at least 10% as compared to the vapor pressure of the first electrolyte component alone, when measured at 293.15 K, and (2) results in a vapor pressure of the first mixture above 100 kPa at a temperature of 293.15 K. The second electrolyte component may also be selected to lower the global warming potential (GWP) of the first mixture by at least 10% as compared to the GWP of the first electrolyte component alone. The safe liquefied gas electrolyte is formed by mixing a third electrolyte component (one or more salts) to the first mixture. This safe liquefied gas electrolyte can then be used to manufacture an electrochemical energy storage device.


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