The advantages of lithium-ion batteries are their large capacity and high operating voltage. The capacity is twice that of an equivalent nickel cadmium battery, which is more suitable for long-term communication. However, the voltage of a typical single lithium battery is 3.7V, which is three times that of nickel cadmium and nickel hydrogen batteries.
2. Strong charge retention ability, allowing for a wide range of operating temperatures. After being stored in open circuit form for 30 days at (20 ± 5) ℃, the normal temperature discharge capacity of the battery is greater than 85% of the rated capacity. Lithium ion batteries have excellent high and low temperature discharge performance, which can reach -20 ˉ+ Working at 60 ℃, the high-temperature discharge performance is higher than other types of batteries.
3. Long cycle service life. Lithium ion batteries use carbon anodes, which do not generate dendrite lithium during charging and discharging, thus avoiding damage to the battery due to internal dendrite lithium short circuits. After 1200 consecutive charges and discharges, the battery capacity will still not be lower than 60% of the rated value, far higher than other types of batteries, and has long-term economic benefits.
4. High safety, capable of safe and fast charging and discharging. Compared with metal lithium batteries, lithium-ion batteries have the characteristics of anti short circuit, anti overcharging, over discharging, anti impact, anti vibration, gunshot, needle puncture, no fire, no explosion, etc. Due to the use of special carbon electrodes instead of metal lithium electrodes in the anode, it allows for fast charging and discharging, and can be charged and discharged at a 1C charging rate, greatly improving safety performance.
5. No environmental pollution. Batteries do not contain harmful substances such as cadmium, lead, and mercury, making them a clean "green" chemical energy source
6. No memory effect. It can be repeatedly charged and discharged at any time, especially in wartime and emergency situations, demonstrating its excellent performance.
7. Small size, light weight, and high specific energy. Usually, the specific energy of lithium-ion batteries can reach more than twice that of nickel cadmium batteries. Compared with nickel hydrogen batteries of the same capacity, the volume can be reduced by 30% and the weight can be reduced by 50%, which is beneficial for small and lightweight portable electronic devices
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