The difference between lithium battery and lead-acid battery

The difference between lithium battery and lead-acid battery
1. Security comparison
Power lithium batteries (lithium manganese oxide, lithium iron phosphate) have different safety materials. The technology of lead-acid batteries is quite mature, and their safety is higher than that of lithium batteries.
2. Environmental protection comparison
Lithium batteries have no pollution, while lead-acid batteries have heavy metal lead pollution. Therefore, electric vehicles using lead-acid batteries will still pollute the environment.
3. Price comparison
The price of lithium batteries with the same capacity on the market is more than double that of lead-acid batteries. This is why electric vehicles using lithium batteries are more expensive.
4. Energy comparison
The mass ratio, volume ratio, and energy ratio of lithium batteries are about 40% higher than those of lead-acid batteries.
5. Comparison of self-discharge rate
The monthly self-discharge of lithium batteries is less than 3%, while that of lead-acid batteries is 15~30%, with a big difference.
6. Comparison of service life
At present, the general-purpose lithium iron phosphate has no memory effect after being charged 1500 times, and the storage capacity is about 85% after charging 1500 times, while the lead-acid battery is about 500 times, the storage capacity will also drop significantly, and the memory effect is obvious. Therefore, the battery life of electric vehicles using lithium batteries will be longer.
7. Comparison of voltage platforms
The lithium battery voltage platform is greater than 3V, and the lead-acid battery is 2V.
8. Comparison of discharge characteristics
Simply put, for a battery with the same capacity, under the condition of high current discharge, the lithium battery will discharge about 30% more electricity than the lead-acid battery.
9. Durability
Lithium batteries have strong durability and good vibration resistance. The batteries in the fully charged state are safe and fixed, consume slowly, charge and discharge more than 500 times, have no memory, and generally have a service life of 4-5 years. Lead-acid batteries - generally within 400 times of deep charge and deep discharge, have memory, and have a lifespan of about two years. If you are using a maintenance-free lead-acid battery, it should be noted that the water loss of the battery is small, and it is generally not necessary to add distilled water during use.