With the widespread use of power lithium-ion batteries today, consumers are particularly concerned about their battery life. In terms of environmental protection, lithium-ion batteries do not cause pollution, giving them many advantages. Lithium-ion battery manufacturers will now discuss some of the advantages of medical-grade lithium-ion battery packs.
1. Strong endurance: Although the weight of a medical lithium-ion battery pack is only 30% of that of a lead-acid battery, it has a stronger range under the same voltage and capacitance.
2. It has good low-temperature discharge performance. Medical lithium-ion battery packs can work normally at -25 degrees Celsius, but lead-acid batteries can only work normally at a minimum of -10 degrees Celsius.
3. Long charging time: The capacity of the medical lithium-ion battery with overflowing charge is still more than 80% after being idle for a month, while the capacity of the lead-acid battery is only about 40%.
4. Long cycle life: Medical lithium-ion batteries can be charged and discharged more than 500 times and can discharge up to 1C, while lead-acid batteries can only discharge at 0.5C and have a lifespan of 300 times.
5. High specific energy: Lithium-ion battery packs are small in size but have a large stored capacity;
6. Wide normal operating temperature range: Medical lithium-ion battery packs operate within a temperature range of -25 to 55 degrees Celsius, while lead-acid batteries operate within a temperature range of 10 to 40 degrees Celsius.
7. High current efficiency: Unlike any previous aqueous solution-based secondary battery, lithium-ion battery packs do not produce gas during normal charging and discharging, and the current efficiency is close to 100%. This property makes them particularly suitable for use as battery packs for power storage and conversion.
8. Clean and pollution-free: Medical lithium-ion battery packs do not contain toxic substances such as lead, fluoride, and mercury. Furthermore, because the batteries are tightly sealed, very little gas is released during use, causing no environmental pollution. Solvents used to dissolve binders during manufacturing can also be completely recycled.
9. Low self-discharge rate: Lithium-ion battery packs use a non-aqueous electrolyte system, and lithium-intercalated carbon materials are thermodynamically unstable in a non-aqueous electrolyte system. During the first charge and discharge process, the reduction of the electrolyte will form a solid electrolyte interphase (SEI) film on the surface of the carbon negative electrode, which allows lithium ions to pass through but not electrons, and keeps the electrode active materials of different charge states in a relatively stable state, thus exhibiting a low self-discharge rate.
10. Low internal resistance: Through special design, the battery impedance can be greatly reduced, significantly improving the battery's high-current discharge performance.
