Which is better, lithium ion battery or lead-acid battery
Date
2021-01-05

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Lithium-ion batteries have small size, light weight, high energy density, good sealing performance, no leakage, no memory effect, low self-discharge rate, rapid charge and discharge, long cycle life, wide working environment temperature range, safety, stability, and environmental protection. Characteristics, so it has a very broad application prospect in the field of communication power


1. Weight energy density;

At present, the energy density of lithium ion batteries is generally 200~260wh/g, lead acid is generally 50~70wh/g, and the weight energy density of lithium ion batteries is 3~5 times that of lead acid, which means the lead content is the same. Acid batteries are three to five times stronger than lithium-ion batteries, so lithium-ion batteries have an absolute advantage in energy storage.


2. Volume energy density;

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


3. Use loops;

At present, the most popular lithium-ion battery materials are ternary lithium and iron lithium. For example, a ternary lithium ion battery usually has 1000 cycles, a lithium iron phosphate battery has more than 2,000 cycles, and a lead-acid battery usually has 300-350 cycles. Then it shows that the life of lithium-ion batteries is about 3-6 times that of lead-acid batteries.


4. Price;

Lead-acid batteries are currently cheaper than lithium-ion batteries, which are about three times more expensive than lead-acid batteries. However, through service life analysis, if the same cost is used, the life of lithium-ion batteries is longer.


5. Applicability;

Due to its safety, lithium-ion batteries are slightly worse than lead-acid batteries. The temperature applicability of lead-acid batteries is also very good. Therefore, there is a danger of fire or explosion in lithium-ion batteries during use. For example, some external factors may cause damage to lithium-ion batteries due to accidents. Therefore, various safety precautions must be taken Measures. Therefore, the compatibility of lithium-ion batteries is not as good as lead-acid batteries.


6. Environmental protection;

Because lead-acid batteries have very serious pollution, they can cause environmental damage in the production process or discarding waste batteries. Therefore, from the perspective of environmental protection, it is imperative to restrict the reinvestment of lead-acid batteries or restrict the use of lead-acid batteries in certain areas.

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