Solid polymer electrolytes to alleviate voltage delay of lithiium cells
AssigneeEiC Corporation
InventorsKuzhikalail M. Abraham, Mohamed Alamgir, David M. Pasquariello
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Abstract
An electrochemical cell, comprising a lithium anode, a cathode, and a liquid electrolyte of lithium tetrachloroaluminate dissolved in thionyl chloride, has a coating of a Li ion conductive solid polymer electrolyte on the anode. An example of the solid polymer electrolyte is a Li salt complex of poly[bis(methoxyethoxyethoxy)phosphazene].
Claims9
An electrochemical cell comprised of a cathode, a liquid electrolyte comprising one or more lithium salts dissolved in sulfur oxyhalides, and a lithium anode coated with a solid polymer electrolyte comprised of a lithium salt complex of a polymer which contains an electron donating heteroatom such as oxygen through which the polymer complexes with the lithium salt, wherein said polymer is a polyphosphazene of the formula ##STR2## where LiX is a lithium salt, m is the number of repeating polyphosphasphazene monomer in the polymer electrolyte.
An electrochemical cell comprised of a cathode, a liquid electrolyte comprising one or more lithium salts dissolved in sulfur oxyhalides, and a lithium anode coated with a solid polymer electrolyte comprised of a lithium salt complex of a polymer which contains an electron donating heteroatom such as oxygen through which the polymer complexes with the lithium salt, wherein said polymer is a polymer mixture of a polyphosphazene and poly(ethylene oxide), PEO.
Dependencies are inferred from the claim text.