Electrolyte and electrochemical device comprising the same
AssigneeNingde Amperex Technology Limited
InventorKefei Wang
Life of this patent
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Abstract
An electrolyte includes a fluorinated cyclic carbonate, a multi-nitrilemulti-nitrile compound having an ether bond and a cyclic phosphonic anhydride. Based on a total weight of the electrolyte, a weight percentage (Cf) of the fluorinated cyclic carbonate is greater than a weight percentage (Cn) of the multi-nitrilemulti-nitrile compound having an ether bond. The electrolyte can control the expansion of the electrochemical device, so that the electrochemical device has excellent cycle, storage and/or floating-charge performance.
Claims17
An electrolyte, comprising a fluorinated cyclic carbonate, a multi-nitrile compound having an ether bond and a cyclic phosphonic anhydride, wherein based on a total weight of the electrolyte, a weight percentage (Cf) of the fluorinated cyclic carbonate is greater than a weight percentage (Cn) of the multi-nitrile compound having an ether bond.
An electrochemical device, comprising an electrode and an electrolyte, the electrolyte comprises a fluorinated cyclic carbonate, a multi-nitrile compound having an ether bond and a cyclic phosphonic anhydride, wherein based on the total weight of the electrolyte, the weight percentage (Cf) of the fluorinated cyclic carbonate is greater than the weight percentage (Cn) of the multi-nitrile compound having an ether bond.
An electronic device, comprising an electrochemical device , the electrochemical device comprises an electrode and an electrolyte, the electrolyte comprises a fluorinated cyclic carbonate, a multi-nitrile compound having an ether bond and a cyclic phosphonic anhydride, wherein based on the total weight of the electrolyte, the weight percentage (Cf) of the fluorinated cyclic carbonate is greater than the weight percentage (Cn) of the multi-nitrile compound having an ether bond.
Dependencies are inferred from the claim text.