Abstract: A negative electrode material for a lithium ion battery, a negative electrode for a lithium ion battery, a lithium ion battery, a battery pack and a battery powered vehicle are disclosed herein. The negative electrode material for the lithium ion measured by means of XPS has a half-value width of 0.55-7 eV at a peak of 284-290 eV; a C/O atomic ratio of (65-75):1, and a peak area ratio of sp2C to sp3C of 1:(0.5-5) with the sum of the spectral peak areas of sp2C and sp3C being a reference. Using the negative electrode material having the structure above for the negative electrode of the lithium ion battery may provide a large lithium storage, and form a stable SEI film, thereby improving the stability of the negative electrode of the lithium during a cycling process, and improving the rate performance of the lithium ion battery.

Abstract: The present invention relates to negative electrode carbon materials for lithium-ion batteries, and particularly to a lithium-ion battery negative electrode active material, a lithium-ion battery negative electrode, a lithium-ion battery, a battery pack and a battery-powered vehicle. In a pore structure, measured by N2 adsorption and desorption, of the lithium-ion battery negative electrode carbon particles, by using the total pore volume measured by BJH having a pore size of 2-200 nm as the reference, the sum of the volumes of pores with a pore size of 2-10 nm is 2-10%, the sum of the volumes of pores with a pore size of 10-100 nm is 30-65%, and the sum of the volumes of pores with a pore size of 100-200 nm is 30-65%, and the carbon particles have a BET specific surface area of 0.9-1.9 m2/g.