Improved cycle lives of LiMn2O4 cathodes in lithium ion batteries by an alginate biopolymer from seaweed

We report an alginate, extracted from brown seaweed as a polymeric binder for spinel LiMn2O4. The exceptional Mn2+ capture of the alginate extracted from brown seaweed resolves the chronic issue of a promising lithium battery cathode, LiMn2O4, upholding the feasibility of its use for emerging large-scale applications including electric vehicles.