Patent ID: 9203083
Filing Date: 2015-12-01
Classification: H01M,Y02E

Abstract:
1. A negative active material for rechargeable lithium battery, comprising: a core including a material being capable of doping and dedoping lithium; an oxide layer of the material being capable of doping and dedoping lithium formed on the exterior of the core including a material being capable of doping and dedoping lithium; and a carbon layer formed on the exterior of the oxide layer of the material being capable of doping and dedoping lithium, wherein the oxide layer of the material being capable of doping and dedoping lithium comprises a compound represented by the following Chemical Formula 1: wherein, in the above Chemical Formula 1, M is an alkali metal, an alkaline-earth metal, a Group 13 to 16 element, a transition metal, a rare earth element, or a combination thereof, and 0.9≦x≦0.99, 0≦y≦0.05, and 0.01≦z≦0.1.