The advantages and disadvantages of lithium battery and lead-acid battery are compared from the following aspects:
1. Weight energy density
At present, the energy density of lithium battery is 200-260h/g, and lead-acid battery is 50-70h/g, so the weight energy density of lithium battery is 3-5 times that of lead-acid battery, which means that lead-acid battery is 3-5 times that of lithium battery under the same capacity, so lithium battery has a great advantage in energy storage technology.
2. Volume energy density
The relative volume density of lithium-ion batteries is usually about 30% smaller than that of lead-acid batteries for the same volume.
3. Use cycle time
At present, the most popular raw material management system is ternary and lithium iron, ternary power lithium ion cycle system frequency is generally more than 1000 times, lithium ion phosphate battery cycle system frequency is more than 2000 times, lead-acid battery cycle system frequency is only 300-350 times, so the life of lithium ion battery is 3-6 times of lead-acid battery.

Price of

 4.Currently, lithium-ion batteries are about three times more expensive than lead-acid batteries, but the fusion life cycle analysis and capital investment costs are the same, so lithium-ion batteries still have a longer life cycle.

5. The applicability
Because the safety factor of lithium battery is slightly weaker than that of lead-acid battery, it is necessary to do a good job in all kinds of safety protection work, for example, to avoid the damage of lithium battery caused by external force or safety accidents, because it will cause fire or explosion; At the present stage, the acceptability of lithium battery is also very good, lithium battery is not inferior to lead acid battery.
6. Positive policies of our country

Lead acid battery is in the production stage or waste rechargeable battery is seriously damaged by the natural environment, so the development trend of lithium ion replacement lead acid battery will be more and more obvious, further accelerate.

The difference between lithium battery and lead-acid battery:
1. Durability: lead acid batteries are generally deep charge and discharge within 400 times, have memory, and can be used within 2 years. Lead-acid batteries contain liquid, which takes a while to charge and must be filled with liquid. Lithium battery is different, its durability is stronger than lead-acid battery, the cost is lower, deep battery charge and discharge times more than 500 times, and no memory, the general life of 4 to 5 years.
2. Volume and quality: The volume of lead-acid batteries is large. The net weight is usually 16-30 kg. Lithium-ion batteries, in turn, typically have much lighter net weights than lead-acid batteries, most of which are above and below kilograms. And not much. It's easy to transport.
3. Production and manufacturing process: There is environmental pollution in the production and manufacturing process of lead-acid battery. If the purchase is not good, it will also cause environmental pollution. Lithium is relatively less carbon-friendly.

4. Price level: Many of the main manifestations of lithium ion fusion are superior to lead-acid batteries in all areas, but the price level is slightly higher than lead-acid batteries. That, too, is inevitable.

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