A review of the possible ways to increase the energy density of Lithium-ion battery

Abstract

Abstract Lithium-ion battery, benefit from its unmatched energy density, compared to other kinds of cells, currently making it dominates the field of portable electronics, electric vehicles, etc. When it comes to the application of a battery, one of the most significant parameters is the energy density. Energy density is the ratio of the total charge of a battery to its mass or volume. As we can get from the definition of energy density that a battery with higher energy density can have higher power than other batteries with the same mass or volume. Battery power is certainly one of the most intuitive helps for battery applications. By reviewing and organizing the previous papers, this paper introduces the existing main methods and technologies of cathode, anode and electrolyte for improving the energy density of lithium-ion batteries, respectively, and points out the challenges encountered at this stage, followed by an outlook on practical and feasible methods and technologies for improving the energy density of lithium-ion batteries in the future from the existing research results.