| 摘要 |
A non-aqueous organic electrolyte, a lithium ion secondary battery containing the non-aqueous organic electrolyte, a lithium ion secondary battery preparation method and terminal communication device. The non-aqueous organic electrolyte comprises lithium salt, a non-aqueous organic solvent which comprises gamma-butyrolactone and a saturated cyclic ester compound shown in formula (I), an unsaturated cyclic ester compound shown in formula (II) and a dinitrile compound shown in formula (III). The non-aqueous organic electrolyte has excellent chemical stability and electrochemical stability and can be used for inhibiting the decomposition of an electrolyte solvent under the high voltage and aerogenesis expansion of the lithium ion secondary battery at high temperature in the storage process and meeting the using requirement of the high-voltage lithium ion secondary battery. The anode active material of the lithium ion secondary battery is a mixture of a spinel structure material and a laminated solid solution material. After the non-aqueous organic electrolyte is arranged in the lithium ion secondary battery, the lithium ion secondary battery has excellent high temperature storage characteristic and safety when being used under the high voltage and the full-charged condition. |
