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US 9,070,945 B2Granted
Metal fluoride and phosphate nanocomposites as electrode materials
AssigneeRutgers, The State University of New Jersey
InventorsGlenn Amatucci, Fadwa Badway
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Abstract
The present invention relates to primary and secondary electrochemical energy storage systems. More particularly, the present invention relates to such systems as battery cells, especially battery cells utilizing metal fluorides with the presence of phosphates or fluorophosphates, which use materials that take up and release ions as a means of storing and supplying electrical energy.
Claims9
A battery cell comprising:
- (a) a positive electrode comprising a nanocomposite;
- and
- (b) a solid electrolyte,
- wherein the positive electrode is characterized by a specific capacity of about 100 mAh/g to 600 mAh/g at a voltage of about 2 volts to about 4 volts when measured against a Li/Li+ reference potential,
- wherein the nanocomposite comprises a metal fluoride component, conductive matrix, and a phosphate matrix,
- wherein the metal fluoride component is characterized by a particle size about 1 nm to about 100 nm,
- wherein the metal fluoride component is selected from the group consisting of CuF2, BiF3, CoF3, AgF, MnF3, NiF2, and FeF3, and
- wherein the conductive matrix comprises sulfur.
5 more elements
Dependencies are inferred from the claim text.