Lithium battery or lead-acid battery which is better

Which is better, lithium battery or lead-acid battery?

In terms of different comparisons, the advantages they occupy are different.

1. Weight energy density

The current energy density of lithium batteries is generally 200~260wh/g, and that of lead acid is generally 50~70wh/g, so the weight energy density of lithium batteries is 3~5 times that of lead acid, which means that under the same capacity, lead Acid batteries are 3 to 5 times that of lithium batteries, so lithium batteries have an absolute advantage in terms of lightweight energy storage devices.

2. Volume energy density

The volume capacity density of lithium batteries is usually about 1.5 times that of lead-acid batteries, so under the same capacity, lithium batteries are about 30% smaller than lead-acid batteries.

3. Use cycle

At present, the more popular material systems are ternary and iron-lithium. The cycle times of ternary power lithium batteries are usually more than 1000 times, the cycle times of lithium iron phosphate batteries are more than 2000 times, and the cycle times of lead-acid batteries are usually only 300~350 times. times, so the service life of lithium batteries is about 3-6 times that of lead-acid batteries.

4. Price

At present, lithium batteries are more expensive than lead-acid batteries in terms of price, which is about 3 times. However, combined with the analysis of service life, with the same cost, the service life of lithium batteries is still longer.

5. Applicability

Lithium batteries are slightly less safe than lead-acid batteries, so various safety precautions need to be taken during use, such as preventing external forces or accidents from damaging lithium batteries, because this may cause fire or explosion; current lithium batteries The temperature applicability is also very good, so in terms of other adaptability, lithium batteries are not inferior to lead-acid batteries.

The above is a good comparison introduction about lithium batteries and lead-acid batteries. When we choose, we can also choose the more suitable one according to different purposes.