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Samsung SDI improves battery performance with gel polymer electrolyte

Samsung SDI said on Sunday it developed a technology that improves both the lifespan and safety of lithium metal batteries, working with Columbia University. It said a fluorine-based gel polymer electrolyte forms a stable interface on the anode surface and effectively suppresses dendrites that degrade performance. The company said lithium metal batteries have 1.6 times the energy density of ternary batteries but have faced limits to commercialisation due to short cycle life.