Why is the electrolyte installed in the battery?
The electrolyte plays a role in the conduction of electrons between the positive and negative electrodes of lithium batteries, allowing the batteries lithium-ion to obtain high voltage and high voltage. specific energy. Guaranteed benefits. Electrolyte
Generally, it is prepared from high purity organic solvents, electrolytic lithium salts, necessary additives and other raw materials in a certain proportion and under certain conditions.
High specific energy electrolyte: The pursuit of high specific energy is currently the largest area of lithium-ion battery research, especially when mobile devices occupy an increasing proportion of battery life. people, battery life has become the most important factor. in the batteries.
Organic liquid electrolyte: the organic liquidCarbonate is a good solvent for lithium salts. Its oxidation potential is 47 V and its reduction potential is about 10 V (the voltage values in this article are all relative to the lithium potential); In addition, the viscosity of carbonate is relatively low and the activation energy for lithium ion migration is also low. Therefore, the most commonly used electrolytes are carbonates and their mixtures, including PC, EC, DEC, DMC, EMC, etc.
Liquid electrolyte: The choice of electrolyte has a big impact on the performance of lithium-ion batteries. It must be chemically stable, particularly difficult to decompose in higher potential and temperature environments, and have a higher ionic level. conductivity (> 10-3S/cm) and must be inert with respect to the anode and cathode materials and must not corrode them. Due to the high charge and discharge potentials oflithium-ion batteries and chemically active lithium embedded in the negative electrode material, the electrolyte should use organic compounds instead of water.
In order to fully improve the filtration effect of the electrolyte, it is necessary to use professional electrolyte filtration equipment to remove impurities and filter the electrolyte.