High Rate Capability of Porous LiNi[sub 1/3]Co[sub 1/3]Mn[sub 1/3]O[sub 2] Synthesized by Polymer Template Route

Layered , which is isostructural with , is considered as a potential cathode material for Li-ion batteries. Submicrometer sized porous particles are useful for high discharge rates. The present work involves a synthesis of submicrometer sized porous particles of using a triblock copolymer as a soft template. The precursor obtained from the reaction is heated at different temperatures between 600 and for 6 h to get the final product samples. The compound attains increased crystallinity with an increase in the temperature of preparation. However, there is a decrease in the surface area and also in the porosity of the sample. Nevertheless, the sample prepared at exhibits a high rate capability and stable capacity retention on cycling. The electrochemical performance of prepared in the absence of the polymer template is inferior to that of the sample prepared in the presence of the polymer template.