Electrolyte for low-temperature lithium ion battery electrolyte and lithium ion battery
The invention belongs to the technical field of lithium ion batteries. The invention discloses a low-temperature lithium ion battery electrolyte which is composed of a solvent, a lithium salt and an additive, the lithium salt is a mixed lithium salt and comprises at least one of lithium hexafluoroph...
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creator | JIANG QINXU WANG YINGLAI |
description | The invention belongs to the technical field of lithium ion batteries. The invention discloses a low-temperature lithium ion battery electrolyte which is composed of a solvent, a lithium salt and an additive, the lithium salt is a mixed lithium salt and comprises at least one of lithium hexafluorophosphate or lithium tetrafluoroborate and a special lithium salt, and the special lithium salt is composed of at least one of lithium bis (oxalato) phosphate, lithium bis (fluorosulfonyl) imide or lithium difluorophosphate; and the weight percentage of the special lithium salt in the electrolyte is 0.5%-5.0%. The invention also discloses an electrolyte containing the low-temperature lithium ion battery electrolyte. Through necessary and selective addition and combination of the components, the purpose of the invention can be achieved, the low-temperature performance of the electrolyte is synergistically improved, the high-temperature performance is not lost, the application temperature range of the lithium ion batte |
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The invention discloses a low-temperature lithium ion battery electrolyte which is composed of a solvent, a lithium salt and an additive, the lithium salt is a mixed lithium salt and comprises at least one of lithium hexafluorophosphate or lithium tetrafluoroborate and a special lithium salt, and the special lithium salt is composed of at least one of lithium bis (oxalato) phosphate, lithium bis (fluorosulfonyl) imide or lithium difluorophosphate; and the weight percentage of the special lithium salt in the electrolyte is 0.5%-5.0%. The invention also discloses an electrolyte containing the low-temperature lithium ion battery electrolyte. 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language | chi ; eng |
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subjects | BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY |
title | Electrolyte for low-temperature lithium ion battery electrolyte and lithium ion battery |
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