Electrolyte and electrochemical device
AssigneeNingde Amperex Technology Limited
InventorsShuirong Zhang, Wenqiang Li, Qian Wen, Chao Tang
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Abstract
The present application provides an electrolyte and an electrochemical device. The electrolyte according to the present application comprises a carboxylate, a barbituric acid compound and a nitrile compound. Adding a barbituric acid compound and a nitrile compound of particular structure to an electrolyte containing a carboxylate solvent can significantly improve the rate performance of an electrochemical device, and mitigate capacity loss after storage at room temperature, and cycle fading and gas generation at high-temperature of the electrochemical device.
Claims14
An electrolyte, comprising a carboxylate, a barbituric acid compound, a carbonate compound containing a silicon functional group and a nitrile compound;
- wherein, the nitrile compound comprises one or more selected from the group consisting of
- and
- wherein, the carbonate compound containing a silicon-functional group comprises one or more selected from the group consisting of
An electrochemical device, comprising an electrolyte, wherein the electrolyte comprises a carboxylate, a barbituric acid compound, a carbonate compound containing a silicon functional group and a nitrile compound;
- wherein, the nitrile compound comprises one or more selected from the group consisting of
- and
- wherein, the carbonate compound containing the silicon-functional group comprises one or more selected from the group consisting of
An electronic device, comprising an electrochemical device, wherein the electrochemical device comprises an electrolyte, wherein the electrolyte comprises a carboxylate, a barbituric acid compound, a carbonate compound containing a silicon functional group and a nitrile compound;
- wherein, the nitrile compound comprises one or more selected from the group consisting of
- and
- wherein, the carbonate compound containing a silicon-functional group comprises one or more selected from the group consisting of
Dependencies are inferred from the claim text.