Short Answer: Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2 or NMC) is a leading alternative to LiFePO4 batteries, offering higher energy density (150-220 Wh/kg vs. 90-160 Wh/kg) and better performance in compact devices. While less thermally… What is the Alternative to LiFePO4? Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2)