PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC Carbonate liquid is a good solvent of lithium salt, which has an oxidation potential of 4.7V and a reduction potential of about 1.0V (the voltage values are relative to lithium potential); In addition, carbonate viscosity is relatively low, lithium ion migration activation energy is also low. Therefore, the most commonly used electrolytes are carbonates and their mixtures, including PC, EC, DEC, DMC, EMC, etc.
The electrochemical potential of carbon materials is usually higher than the lowest unoccubed molecular orbital of carbonate solvent. In order to make carbon materials used as negative electrode for the removal of iron by PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC, EC is usually included in the solvent. EC can form passivation SEI film on the surface of negative carbon electrode, thus inhibiting the decomposition of electrolyte. However, the flash point of carbonate solvent is lower than 30℃, so it is highly flammable.
In addition, LiPF6 will also undergo autocatalytic decomposition to produce LiF and PF5, which will react irreversibly with trace water: PF5 + H2O=PF3O + 2HF. These reactions reduce the electrochemical performance of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC for removing iron and even cause safety accidents. However, certain additives used to reduce the operating temperature of the battery can inhibit the autocatalytic decomposition of LiPF6.
Contact: DELLA
Mob: +86-13929907491
