Various modification techniques have been studied for increasing the electrochemical performance of the LMO cathode. Doping of various elements like Al, Cr, Fe and Co in LMO to improve the electrode performance has been studied , . These elements have an oxidation state that is less than the average oxidation state of manganese (+3.5). It suppresses John Teller distortion, phase transformation and Mn dissolution increasing cyclic stability. However, it is detrimental to the capacity. Nickel doping has also been considered for increasing rate capability by inducing a disordered spinel structure . Organic coatings like polymers and acetylacetone in LMO have been considered as a surface engineering mechanism to prevent the decomposition of electrolytes. The coatings neutralise the surface-active sites in Mn and prevent the dissolution of manganese in the electrolyte. This results in increased electrochemical performance at high temperatures . Other surface modification improvements of LMO have been considered as well .