What are the advantages and disadvantages of lithium battery and lead-acid battery?

　　I believe you have heard many battery names in your life, such as battery, lithium battery, lead-acid battery, etc., but you know that these batteries are very different. The role of the battery is to store the limited electrical energy, and then put it to the appropriate place for use. Its principle is to convert chemical energy into electrical energy. The lithium battery is made of metal lithium or lithium containing metal materials, The battery uses non-aqueous electrolyte solution, while the lead-acid battery is made of lead and other oxides. The electrolyte is actually the same sulfuric acid solution as the battery. However, with the market demand, the lithium battery gradually replaces the lead acid. Now, Tuobai will explain the advantages and disadvantages of lithium battery and lead acid battery.

　　1. Security comparison

　　Different materials of power lithium battery (lithium manganate and lithium iron phosphate) have different safety. Lead acid battery technology is quite mature, and its safety is higher than that of lithium battery.

　　2. Comparison of environmental protection

　　Lithium battery is not polluted, and lead acid battery is polluted by heavy metal lead. Therefore, electric vehicles using lead-acid batteries will still pollute the environment.

　　3. Price comparison

　　The price of lithium battery with the same capacity in the market is more than twice that of lead-acid battery. This is why electric vehicles with lithium batteries are more expensive.

　　4. Energy comparison

　　The mass ratio, volume ratio and energy ratio of lithium battery are about 40% higher than those of lead-acid battery.

　　5. Comparison of self discharge rate

　　The self discharge rate of lithium battery is less than 3% per month, while that of lead-acid battery is 15-30%, which is very different.

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