Ningde Amperex Technology Limited

Juan Ma

Chao Tang

Shuirong Zhang

Wenqiang Li

Junfei Liu

Chunrui Xu

An electrolytic solution includes a compound containing a —CN functional group and a compound containing a silicon functional group. M is C or Si. R, R, and Rare each independently selected from a substituted or non-substituted C-Calkylene group, a substituted or non-substituted C-Calkenylene group, an O—R group, an R—S—R group or an R—O—R group, Rand R are each independently selected from a substituted or non-substituted C-Calkylene group. n is 0 or 1. Ris H, fluorine, a cyano group, a substituted or non-substituted C-Calkyl group, a substituted or non-substituted C-Calkenyl group, an O—Rgroup, an R—S—Rgroup, or an R—O—Rgroup. Ris a substituted or non-substituted C-Calkylene group, and Ris a substituted or non-substituted C-Calkyl group.

Electrolytic solution and electrochemical device using the same

The present application relates to an electrolyte and an electrochemical device including the same. The electrolyte includes a diboronic acid compound and a nitrile compound, so that the storage performance and cycle performance of the electrochemical device using the electrolyte can be remarkably improved.

Electrolyte and electrochemical device

The present application relates to an electrolytic solution and an electrochemical device using same. The electrolytic solution of the present application comprises a compound containing a &#x2014;CN functional group and a compound containing a P&#x2014;O bond. By introducing the compound containing a &#x2014;CN functional group and the compound containing a P&#x2014;O bond into the electrolytic solution, an active material can be better protected, thereby effectively improving floatation performance and nailing performance of a battery, and cycle impedance of the battery.

Electrolyte solution and electrochemical device using the same

The present application relates to an electrolyte and an electrochemical device. The electrolyte comprises a cesium salt and a nitrile compound. The electrolyte provided in the present application improves rapid charge-discharge performance and cycle performance of a lithium-ion battery while improving the problem of battery gassing during continuous charge.

The present application relates to an electrolyte and an electrochemical device. The electrolyte includes an organic solvent, an additive and a lithium salt, the additive including a cyclic borate and a nitrile compound. The electrolyte of the present application has good stability at a high working voltage. In another embodiment of the present application, the combination of the electrolyte and an anode having a high compacted density provides a high energy density for the electrochemical device, and improves the storage, floating charge and dynamicperformance of the electrochemical device.

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Ningde, China

Juan Ma