Gel polymer electrolyte for lithium-air battery containing zwitterion salt and lithium-air battery comprising same
AssigneesHyundai Motor Company, Kia Motors Corporation, Industry-Univ Cooperation Fdn. Hanyang Univ
InventorsJun Ki Rhee, Hyun Sik Woo, Dong Won Kim
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Abstract
The present disclosure relates to a gel polymer electrolyte for a lithium-air battery containing a zwitterion salt in a specific amount and to a lithium-air battery including the same and thus having a prolonged battery lifetime, thereby suppressing volatilization of the electrolyte and imparting the lithium-air battery with interfacial stability by inhibiting the formation of dendrites at a lithium anode and suppressing side reactions between the lithium anode and the liquid electrolyte. Moreover, the use of the zwitterion salt can improve the lithium-ion transference number, thereby increasing the lifetime of the battery.
Claims12
A gel polymer electrolyte for a lithium-air battery, comprising:
- a composite polymer resin comprising a linear polymer and a crosslinking agent;
- an ionic liquid;
- a lithium salt;
- a zwitterion salt;
- an initiator;
- and
- an organic solvent.
Dependencies are inferred from the claim text.