NON-AQUEOUS ELECTROLYTE AND SECONDARY BATTERY COMPRISING SAME, BATTERY MODULE, BATTERY PACK, AND ELECTRIC DEVICE

The present application provides a non-aqueous electrolyte and a secondary battery, a battery module, a battery pack and an electrical device containing the same. The non-aqueous electrolyte includes an electrolyte salt and a non-aqueous solvent, wherein the electrolyte salt comprise a first lithium...

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Hauptverfasser: HAN, Changlong, WU, Zeli
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WU, Zeli
description The present application provides a non-aqueous electrolyte and a secondary battery, a battery module, a battery pack and an electrical device containing the same. The non-aqueous electrolyte includes an electrolyte salt and a non-aqueous solvent, wherein the electrolyte salt comprise a first lithium salt, a second lithium salt and a third lithium salt, and the content A1 of the first lithium salt, the content A2 of the second lithium salt and the content A3 of the third lithium salt, based on the total mass of said non-aqueous electrolyte, satisfy that: A1+A2+A3 is below 1%, A1/A2 is from 0.016 to 40, and A1/ (A2+A3) is from 0.006 to 13.5. This application enables the secondary battery to have good cycle performance, storage performance and kinetic performance at the same time.
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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 AND SECONDARY BATTERY COMPRISING SAME, BATTERY MODULE, BATTERY PACK, AND ELECTRIC DEVICE
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