Cathode stabilization method using electrochemical oxidative additives in aqueous alkali-ion batteries
AssigneeUniversity of Maryland, College Park
InventorsChunsheng WANG, Fei WANG
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Abstract
The present invention is directed to aqueous solid state electrolytes that comprises an oxidative additive to stabilize the interface between the cathode and aqueous electrolyte. The present invention is also directed to methods of making the solid state electrolyte materials and methods of using the solid state electrolyte materials in batteries and other electrochemical technologies.
Claims34
A cathode comprising:
- (a) a cathode active material;
- and
- (b) a solid electrolyte interphase layer;
- wherein the solid electrolyte interface layer covers the cathode active material.
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An electrochemical cell comprising:
- (a) an anode;
- (b) a cathode;
- and
- (c) an aqueous or a hybrid electrolyte;
- wherein the cathode comprises a solid electrolyte interphase layer that covers a cathode active material.
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A process for preparing a cathode for an electrochemical device comprising:
- (a) providing a cathode active material;
- (b) immersing the cathode active material in an aqueous or hybrid electrolyte comprising at least one oxidative additive;
- and
- (c) charging the cathode active material to form a solid electrolyte material upon the cathode active material.
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Dependencies are inferred from the claim text.