COATED NEGATIVE-ELECTRODE ACTIVE MATERIAL FOR USE IN LITHIUM-ION BATTERY, SLURRY FOR USE IN LITHIUM-ION BATTERY, NEGATIVE ELECTRODE FOR USE IN LITHIUM-ION BATTERY, LITHIUM-ION BATTERY, AND METHOD FOR MANUFACTURING COATED NEGATIVE-ELECTRODE ACTIVE MATERIAL FOR USE IN LITHIUM-ION BATTERY

An object of the present invention is to provide a negative electrode active material capable of reducing the irreversible capacity of a lithium ion battery. The present invention provides a coated negative electrode active material for lithium ion batteries wherein at least a portion of the surface of a particulate negative electrode active material for lithium ion batteries is coated with a coating agent and the coated negative electrode active material is doped with at least one of lithium and lithium ions.