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Comparison of the advantages and disadvantages of lithium batteries and lead-acid batteries

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2024-04-07

Lithium batteries can provide higher voltage, greater battery density, and the number of cycles is more than 1,000 times, while lead-acid is only 300-500 times; lithium batteries have a threshold for charging, but lead-acid charging methods are more; lead-acid safer to use and lower cost.

The following is a detailed introduction:

1. Different nominal voltages: single lead-acid battery 2.0V, single lithium battery 3.6V;

2. Lithium battery has higher energy density, lead-acid battery 30WH/KG, lithium battery 110WH/KG;

3. The cycle life of lithium batteries is longer, the average lead-acid battery is 300-500 times, and the lithium battery is more than a thousand times;

4. The charging method of lithium batteries is relatively fixed, and the voltage-limiting and current-limiting method is adopted, that is, a limited threshold is given for both current and voltage, while there are many charging methods for lead-acid batteries;

5. Lead-acid batteries are safer to use, and the cost of construction is relatively low;

6. The source of the difference between the two is based on the performance of the materials. The positive and negative materials of lead-acid batteries are lead oxide, metal lead, and concentrated sulfuric acid; lithium-ion batteries have four components: positive electrode (lithium cobalt oxide/manganese oxide). Lithium oxide/lithium iron phosphate/ternary), anode graphite, separator and electrolyte;

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Comparison of the advantages and disadvantages of lithium batteries and lead-acid batteries

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