| abstract |
Provided is an anode active material layer for a lithium battery, comprising multiple particulates of an anode active material, wherein a particulate is composed of one or a plurality of particles of a high-capacity anode active material being embraced or encapsulated by a thin layer of a high-elasticity polymer having a recoverable tensile strain no less than 5% when measured without an additive or reinforcement, a lithium ion conductivity no less than 10−6 S/cm at room temperature, and a thickness from 0.5 nm (or a molecular monolayer) to 10 μm (preferably less than 100 nm), and wherein the high-elasticity polymer contains a polyrotaxane network having a rotaxane structure or a polyrotaxane structure at a crosslink point of the polyrotaxane network. |