Secondary Li battery incorporating 12-Crown-4 ether
First Claim
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1. A solid electrolyte comprising in combination:
- a solid polyethylene oxide matrix;
a dispersion of a lithium salt in the matrix, the ratio of oxygen to lithium in the polyethylene oxide matrix being from 1 to 1 to 10 to 1; and
further including 12 Crown-4-ether in an amount effective to increase conductivity.
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Abstract
The conductivity is increased an order of magnitude and interfacial charge transfer resistance is substantially decreased by incorporating a minor amount of 12-Crown-4 ether in a polyethylene oxide-lithium salt solid electrolyte film.
56 Citations
12 Claims
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1. A solid electrolyte comprising in combination:
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a solid polyethylene oxide matrix; a dispersion of a lithium salt in the matrix, the ratio of oxygen to lithium in the polyethylene oxide matrix being from 1 to 1 to 10 to 1; and further including 12 Crown-4-ether in an amount effective to increase conductivity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of forming a solid electrolyte comprising the steps of:
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dissolving a solid polyethylene oxide polymer in vaporizable solvent to form a solution; dispersing a lithium salt and 12-Crown-4 ether in the solution; casting the solution into a thin film; and removing the solvent from the thin film. - View Dependent Claims (11, 12)
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Specification