Flame‐Retardant Additive/Co‐Solvent Contained in Organic Solution for Safe Second Batteries: A Review

With the increased demands of energy density boosting electrochemical performance rechargeable alkali metal ion batteries, safe operation second batteries is attracting much attention and needs to be especially considered during their further development, which essential in view well-known fire incidents lithium-ion batteries. These dangerous events are as a consequence exothermic chemical reactions between flammable carbonate-based solutions electrode active material under terrible working conditions. Under this circumstance, some series flame-retardant organic liquid-based have demonstrated potential towards safer with minimal injurious or advantageous effect on batteries’ performance. This article reviews for providing reader an overview additive/co-solvent involving trimethyl phosphate its derivative, P-containing amide/phosphazene, all fluorinated solvent, ionic liquids, method adapting concentrated locally electrolyte solution merged text content. Moreover, functionality purpose constituents mixtures discussed many displayed offer improved cycling rate different electrodes compared traditional solutions.