Solid-state secondary batteries with graphite anodes
AssigneeEIC Laboratories, Inc.
InventorsKuzhikalail M. Abraham, Mohamed Alamgir, Zhiping Jiang
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Abstract
Solid-state rechargeable secondary batteries comprise a composite cathode selected from the group consisting of LiNiO.sub.2, LiCoO.sub.2, and LiMn.sub.2 O.sub.4, a separator composed of a solid polymer electrolyte with propylene carbonate as a plasticizer, and a composite anode consisting of graphite, a solid polymer electrolyte containing propylene carbonate and 12-crown-4 ether.
Claims5
A solid state rechargeable electrochemical cell comprising a Li intercalating composite cathode, a solid polymer electrolyte separator composed of a polymer network, a Li salt, and a plasticizer of propylene carbonate or a mixture of propylene carbonate and one or more other solvents, and a composite anode containing graphite as the Li intercalating active material, a polymer electrolyte of the same composition as that in the separator, and 12-crown-4-ether in a weight ratio of 0.05 to 0.21 to graphite.
A rechargeable cell of claim 4 wherein the said lithiated transition metal oxide is selected from the group of lithiated transition metals consisting of LiNiO.sub.2, LiCoO.sub.2.
Dependencies are inferred from the claim text.