NOVELTY - A composite silicate anode material comprises a nano-silicate (I), a conductive agent, and a functional polymer containing transition metal ion chelating functional group applied on the surface of nano-silicate and conductive agent.    USE - Composite silicate anode material is used for manufacturing lithium battery anode for manufacturing lithium battery e.g. chemical lithium battery based on electrochemical reaction e.g. lithium ion battery, lithium polymer battery, lithium sulfur battery and lithium-air battery for communication device (all claimed).    ADVANTAGE - The composite silicate anode material provides safe lithium battery having excellent capacity, durability, storage stability at high-temperature, and cyclic characteristics.    DETAILED DESCRIPTION - A composite silicate anode material comprises nano-silicate of formula: Li2MSiO4 (I), a conductive agent, and a functional polymer containing transition metal ion chelating functional group applied on the surface of nano-silicate and conductive agent.    M=cobalt, manganese, or iron.    INDEPENDENT CLAIMS are included for the following:    (1) manufacture of composite silicate anode material, which involves dissolving functional polymer containing transition metal ion chelating functional group in a polar organic solvent, forming functional polymer solution, adding conductive additive and nano-silicate (I), mixing, seal grinding the obtained mixture, forming silicate-containing slurry, and spray-drying;    (2) lithium battery anode, which comprises a current collector and an active layer containing composite silicate anode material as cathode material on the current collector;    (3) manufacture of lithium battery anode, which involves mixing the composite silicate anode material with a electrode conductive agent and an adhesive, coating the obtained anode slurry on current collector, drying, rolling and cutting;    (4) lithium battery, which comprises the lithium battery anode;    (5) manufacture of lithium battery, which involves preparing anode and cathode of lithium battery, piling anode, diaphragm and cathode over each other in turn, winding, enclosing the obtained battery cell in a battery case, injecting electrolyte, and sealing the battery case; and    (6) communication device, which comprises a working module and a power module comprising the lithium battery. The power module provides power for the working module, and the working module operates based on the electricity provided by the power module.