Patent ID: 9252427
Filing Date: 2016-02-02
CPC Classification: H01M,Y02E

Claim Text:
1. A negative active material comprising a carbonaceous material that has a peak with respect to a surface (002) at a Bragg angle 2θ of 26.4°±0.1° in an X-ray diffraction spectrum, has a full width at half maximum of the peak with respect to the surface (002) of from about 0.2° to about 0.6°, has an interlayer spacing (d 002 ) of the surface (002) measured by X-ray diffraction of from about 3.36 Å to about 3.37 Å, and has a crystallite size measured from the full width at half maximum of the peak with respect to the surface (002) of from about 10 nm to about 45 nm.