High reactivity exists between electrolyte and positive and negative
electrodes, especially at high temperature. To improve the safety of
battery, improving the safety of electrolyte
is one of the effective methods. The potential safety risks of
electrolyte can be effectively solved by adding functional additives,
using new lithium salts and using new solvent. 
According
to the different functions of additives, they can be divided into the
following: safety protection additives, film forming additives,
protection positive electrode additives, stable lithium salt additives,
lithium precipitating additives, fluid anti-corrosion additives, and
enhancement of infiltration additives.
In order to improve the performance of commercial lithium salts, the researchers have replaced them with atoms and obtained many derivatives. Among them, compounds obtained by substituting atoms with perfluoroalkyl groups have many advantages, such as high flash point, approximate electrical conductivity and enhanced water resistance. In addition, the anionic lithium salts obtained by chelating boron atom with oxygen ligand have high thermal stability.
In terms of solvents, many researchers have proposed a series of new organic solvents, such as carboxylate and organic ether organic solvents. In addition, ionic liquid also has a class of electrolyte with high safety, but relatively commonly used carbonated ester electrolyte, ionic liquid has high viscosity, low conductivity and self-diffusion coefficient of ions, and there is still much work to be done in practical application.
Related Reading:li ion battery electrolyte,lithium ion battery electrolyte
According
to the different functions of additives, they can be divided into the
following: safety protection additives, film forming additives,
protection positive electrode additives, stable lithium salt additives,
lithium precipitating additives, fluid anti-corrosion additives, and
enhancement of infiltration additives.In order to improve the performance of commercial lithium salts, the researchers have replaced them with atoms and obtained many derivatives. Among them, compounds obtained by substituting atoms with perfluoroalkyl groups have many advantages, such as high flash point, approximate electrical conductivity and enhanced water resistance. In addition, the anionic lithium salts obtained by chelating boron atom with oxygen ligand have high thermal stability.
In terms of solvents, many researchers have proposed a series of new organic solvents, such as carboxylate and organic ether organic solvents. In addition, ionic liquid also has a class of electrolyte with high safety, but relatively commonly used carbonated ester electrolyte, ionic liquid has high viscosity, low conductivity and self-diffusion coefficient of ions, and there is still much work to be done in practical application.
Related Reading:li ion battery electrolyte,lithium ion battery electrolyte
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