NON-AQUEOUS ELECTROLYTE SOLUTION AND HIGH-VOLTAGE LITHIUM BATTERY CONTAINING SAME

NON-AQUEOUS ELECTROLYTE SOLUTION AND HIGH-VOLTAGE LITHIUM BATTERY CONTAINING SAME

A non-aqueous electrolyte and a high-voltage lithium battery comprising the same. In order to solve the problem that the high-temperature performance and discharge performance of the existing lithium batteries including non-aqueous electrolyte decreases with the increase of voltage, and the safety i...

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Hauptverfasser: CHEN, Xiaoqin, ZHANG, Li, Sun, Cao, HUI, Yinyin, SHI, Erbo, GAN, Chaolun
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Sprache:eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator CHEN, Xiaoqin
ZHANG, Li
Sun, Cao
HUI, Yinyin
SHI, Erbo
GAN, Chaolun
description A non-aqueous electrolyte and a high-voltage lithium battery comprising the same. In order to solve the problem that the high-temperature performance and discharge performance of the existing lithium batteries including non-aqueous electrolyte decreases with the increase of voltage, and the safety is not good, a non-aqueous electrolyte including a lithium salt, an organic solvent, and additives, the additives include a substance represented by the structural general formulawherein, R1 and R2 are the same, and R1 and R2 are alkylene, fluoroalkylene, alkyleneoxy, or fluoroalkyleneoxy; R3 and R4 are the same, and R3 and R4 are hydrogen, alkyl, alkyloxy, fluoroalkyl or fluoroalkyloxy, is provided. It ensures the high-temperature performance and cycling performance of lithium battery under conventional voltage, and meanwhile, when the voltage is increased to 4.5 V or even higher, the lithium battery still have excellent high-temperature performance and discharge performance, which ensures the safety and electrochemical performance.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title NON-AQUEOUS ELECTROLYTE SOLUTION AND HIGH-VOLTAGE LITHIUM BATTERY CONTAINING SAME
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