UCLA

Rechargeable lithium-ion battery is the foremost candidate for next generation large scale energy storage systems and hybrid electric vehicles. However, these applications require high power batteries that can operate under high current conditions. While graphite is the primary commercialized anode, it is believed that graphite hinders the high-rate performance of lithium-ion battery. Graphite has poor rate performance, relatively low initial coulombic efficiency, and potential safety issues due to its low de-/lithiation potential that can cause metallic lithium plating. In order to enhance the rate performance and reduce the first cycle irreversible capacity, the development of a porous graphite material was evaluated.