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:
Aug. 15, 2023

Filed:

Mar. 01, 2021
Applicant:

Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);

Inventors:

Timothy S. Arthur, Ann Arbor, MI (US);

Nikhilendra Singh, Ann Arbor, MI (US);

Rana Mohtadi, Northville, MI (US);

Oscar Tutusaus, Ann Arbor, MI (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0562 (2010.01); H01M 10/0525 (2010.01); H01M 50/406 (2021.01); H01M 50/449 (2021.01);
U.S. Cl.
CPC ...
H01M 10/0562 (2013.01); H01M 10/0525 (2013.01); H01M 50/406 (2021.01); H01M 50/449 (2021.01); H01M 2300/0068 (2013.01);
Abstract

A solid-state electrolyte for a lithium battery that includes a hard-inorganic electrolyte and at least two soft electrolytes (SEs), where the melting point of the solid-state electrolyte is less than the melting point of a highest melting SE included in the solid-state electrolyte. The SEs include ammonium or phosphonium salts of closo-borates and can include lithium closo-borates salts. The hard-inorganic electrolyte is a lithium thiophosphate (LPS), where the plurality of SEs is melt-diffused throughout the homogeneous combined hard-inorganic electrolyte and a plurality of SEs at a temperature below the highest melting point SE, generally below 100° C. The relative density of the solid-state electrolyte is greater than 90 percent.


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