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.
Patent No.:
Date of Patent:
Apr. 08, 2025
Filed:
Aug. 27, 2020
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Timothy S. Arthur, Ann Arbor, MI (US);
Nikhilendra Singh, Ann Arbor, MI (US);
Rana Mohtadi, Northville, MI (US);
Oscar Tutusaus, Ann Arbor, MI (US);
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Abstract
An anode composite (AC) for use in an anode for solid-state lithium batteries includes particles of a silicon active material, a carbon additive for electrical conductivity, and a solid electrolyte that combines solid elastic electrolyte (SEE) with a solid non-elastic electrolyte. The solid non-elastic electrolyte is a lithium thiophosphate or other ceramic lithium ion conductor and the SEE includes an ammonium or phosphonium ion closo-borate doped with a lithium salt. The SEE is diffused onto the combined particles uniformly by heating, where pressing achieves about 100% relative density at modest pressures. The anode displays high stability upon charge-discharge cycles of a solid-state lithium battery prepared with the AC layer, appearing to maintain stable intrinsic and extrinsic interfaces.