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Click：1988    Date：2023-06-19

What is a lithium-ion electrolyte?
Electrolyte is an ionic conductor that dissolves lithium salts in an organic solvent.
Electrolytes are generally prepared from high-purity organic solvents, electrolyte lithium salts, necessary additives, and other raw materials under certain conditions and in a certain proportion. The choice of electrolyte largely determines the working mechanism of the battery, affecting its specific energy, safety, cycling performance, rate performance, and cost.

What electrical properties should an electrolyte have?
1. The ion conductivity is high and should generally reach 10-3 to 2 × 10-3S/cm; The migration number of lithium ions is close to 1;
2. The electrochemical stability potential range is wide, and there must be an electrochemical stability window of 0-5V;
3. Good thermal stability, wide temperature range for use;
4. Stable chemical performance, no chemical reaction with the current collector and active substances in the battery;
5. Safe, low toxicity, no environmental pollution, preferably biodegradable.

The Influence of Lithium Ion Electrolyte on Electrical Properties
High temperature storage performance, high and low temperature performance, discharge temperature rise, DC internal resistance (DCIR), AC internal resistance (ACIR), first time efficiency/discharge capacity.

The Relationship between Electrolyte and Process
1. Injection time
2. Welding qualification rate
3. Volatility of electrolyte
4. Corrosiveness of electrolyte