Polyimide coated lithium titanate particles and use thereof in a lithium ion battery
AssigneeTalostech LLC
InventorsHansan Liu, Xiaoping Lin
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Abstract
A coated particle comprising a lithium titanate particle core encased by a polyimide coating, an electrode comprising a plurality of polyimide coated LTO particles an electro-active material, and a lithium ion battery comprising an anode, a cathode, a separator and electrolyte wherein the anode comprises a plurality of polyimide coated LTO particles. The polyimide coating effectively reduces the amount of gas formation typically encountered with use of lithium titanate in electrochemical cells.
Claims20
A coated particle comprising a lithium titanate particle core encased by a polyimide coating, wherein the weight percent of the polyimide coating is in the range of 0.1% to 5% based on the total weight of the coated particle, wherein the polyimide coating is either:
- covalently bound to lithium and/or titanium on a surface of the lithium titanate particle core;
- or
- derived from imidization of a polyamic acid precursor on a surface of the lithium titanate particle core.
Dependencies are inferred from the claim text.