-Important components of electrolyte in lithium-ion batteries

Important components of electrolyte in lithium-ion batteries
author:enerbyte source:本站 click216 Release date: 2024-01-29 08:53:08
abstract:
The electrolyte mainly consists of three parts:Solvent: cyclic carbonates (PC, EC); Chain carbonates (DEC, DMC, EMC); Carboxylate esters (MF, MA, EA, MA, MP, etc.).Lithium salts: LiPF6, LiClO4, LiBF4, LiAsF6, etc.Additives: film-forming additives, conductive additives, flame retardant additives, ove...

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The electrolyte mainly consists of three parts:

Solvent: cyclic carbonates (PC, EC); Chain carbonates (DEC, DMC, EMC); Carboxylate esters (MF, MA, EA, MA, MP, etc.).

Lithium salts: LiPF6, LiClO4, LiBF4, LiAsF6, etc.

Additives: film-forming additives, conductive additives, flame retardant additives, overcharge protection additives, additives for controlling the content of H2O and HF in electrolytes, additives for improving low-temperature performance, and multifunctional additives.

The electrolyte used for lithium-ion batteries should generally meet the following basic requirements:

High ion conductivity should generally reach 1x10-3~2x10-2S/cm; High thermal and chemical stability, without separation over a wide voltage range; Wide electrochemical window, maintaining stable electrochemical performance over a wide voltage range; Has good compatibility with other parts of the battery, such as electrode materials, electrode current collectors, and separators; Safe, non-toxic, and pollution-free.

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