Do you know any important uses of lithium-ion battery electrolytes?

The electrolyte of a lithium-ion battery is the mutual use between the electrolyte and the electrode material in the battery. It has its own analytical reverberation and almost participates in all the reverberation processes generated inside the battery. At present, the electrolyte contained in lithium-ion batteries is mostly organic. Under the abuse of overcharge, overdischarge, short circuit and thermal attack, the temperature of the battery rises rapidly. The electrolyte is generally flammable, which often leads to The battery caught fire or even exploded. Electrolyte is an important component of lithium-ion batteries, which transports ions and conducts current between the positive and negative north and south poles. From the phase state, lithium-ion battery electrolytes can be divided into three types: liquid, solid and molten salt electrolytes. ●Lithium ion conductivity: The electrolyte does not have electronic conductivity, but must have excellent ion conductivity. In the general temperature range, the conductivity of the electrolyte is between 1×10-3~2×10-3S/cm. As an electrolyte, it must have excellent ionic conductivity and electronic insulation, so that it can play the role of the ion transport medium while eliminating its own self-discharge. ●Ion migration number: The internal transport charge of a lithium ion battery depends on the migration of ions. A high ion migration number can reduce the concentration polarization when the electrode reverberates, so that the battery presents a high energy density and power density. The ideal lithium ion migration number should only be close to 1. ●Invariance: When the electrolyte is in direct contact with the electrode, you should only take care of the generation of secondary reverberations, which requires the electrolyte to have certain chemical and thermal invariance. ●Machine strength: Li-ion battery electrolyte must have high enough machine strength to satisfy the large-scale production and packaging process of the battery. Li et al. used trimethyl phosphate (TMP) as an additive for high-voltage electrolytes, and tested Li1.2Mn0.54Ni0.13Co0.13O2 as the positive electrode of the battery. The efficiency is clarified. Adding 1% TMP to the electrolyte can significantly improve The rate function and reincarnation function of the battery. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What is the truth about lithium-ion batteries?