0283
Development of 2nd generation Graphite

Wednesday, 6 March 2019
Areas Adjacent to the Forum (Scripps Seaside Forum)
Y. Dockyoung, L. Jonghyuk, L. Miryeong, and K. Heegyoung (SK Innovation)
Silicon anodes have been developed as promising high energy anode materials capable of significantly increasing the energy density of Li-ion batteries.In terms of mass production, the Graphite anodes are still generally using materials because of the lowest cost and better cycle characteristics as respect to silicon anode materials. However, conventional graphite materials suffer from rapid capacity fade following extended storage or on cycling, particularly at high temperature.

SK Innovation has developed second generation graphite anode materials with improved both long-term cycling stability and high temperature storage performance. It is demonstrated by GeodictTM that 2nd generation Graphite anode electrodes have many percolation paths and lots of pores in comparison to conventional graphite anodes. Thus we can raise density of the anode electrode more than ever we did before without any demerit with respect to evaluate or use produced battery cells. Modified 2nd generation anode materials exhibit excellent long-term cycling stability by developing the ionic conductivity caused from increasing the path of electrolyte in the anode electrode.