PARTICULATES OF POLYMER ELECTROLYTE-PROTECTED ANODE ACTIVE MATERIAL PARTICLES FOR LITHIUM-ION BATTERIES

The disclosure provides multi-functional composite particulates for a lithium battery, wherein at least one of the composite particulates has a diameter from 100 nm to 50 μm and comprises a polymer electrolyte matrix comprising a lithium salt dissolved or dispersed in the polymer electrolyte matrix and one or a plurality of primary particles of an anode active material that are encapsulated by, embedded in, dispersed in, or bonded by the polymer electrolyte having a lithium ion conductivity from 10to 5×10S/cm, wherein the primary particles have a diameter or thickness from 0.5 nm to 20 μm and occupy a weight fraction from 5% to 98% based on the total weight of the composite particulate. Also provided is a method of producing such composite particulates, an anode electrode comprising these particulates, and a lithium cell.