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. 12, 2022
Filed:
Mar. 13, 2017
GM Global Technology Operations Llc, Detroit, MI (US);
Peng Lu, Santa Clara, CA (US);
Michael P. Balogh, Novi, MI (US);
Zhiqiang Yu, Shanghai, CN;
Haijing Liu, Shanghai, CN;
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
An electrolyte can be pretreated by contacting with an oxide species (e.g., SiO, SiO, where 1≤x≤2, TiO). The electrolyte comprises LiPFand a carbonate solvent. A reaction occurs to form a pretreated electrolyte comprising a compound selected from the group consisting of: MPOF, MPOFCH, and combinations thereof, where when P in the formula is normalized to 1 so that x' is equal to about 1, 0<y≤4, 0<z≤6, 0≤a≤3, 0 ≤n≤20, 0≤m≤42, and M is selected from Li, Na, K, Mg, Ca, B, Ti, Al, and combinations thereof. Lithium-ion electrochemical cells including lithium titanate oxide (LTO) using such a pretreated electrolyte have reduced reactivity and gas formation.