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

pxid 2021-10-05 36 times

Whether lead-acid batteries are better or lithium batteries is better-this is a question that everyone will consider when buying an electric bicycle.

From a safety point of view, there is no organic electrolyte in lead-acid batteries, and generally will not cause fires and explosions; while lithium batteries have a certain sealed space and contain organic matter, which may cause fires and explosions if they are used incorrectly. accident. Therefore, in terms of safety, lead-acid batteries are better than lithium batteries.

From the perspective of energy density, the energy contained in a kilogram of lithium batteries is 3-4 times that of a kilogram of lead-acid batteries. In other words, under the same weight, lithium batteries can run farther than lead-acid batteries. Therefore, in terms of energy density, lithium batteries are superior to lead-acid batteries.

From the perspective of service life, a set of good-quality lithium batteries can cycle up to about 1,000 times, while lead-acid batteries are only about one-third of lithium batteries. Therefore, in terms of service life, lithium batteries are better than lead-acid batteries.

In addition, lithium batteries can be divided into lithium iron phosphate batteries, ternary lithium batteries, and lithium manganate batteries according to different materials. Different materials of lithium batteries have different characteristics, which can be summarized as follows:

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

Safety: lithium iron phosphate>lithium manganate>ternary lithium;

Life span: lithium iron phosphate>ternary lithium>lithium manganate;

Capacity: ternary lithium>lithium iron phosphate>lithium manganate;

Price: Lithium Iron Phosphate>Ternary Lithium>Lithium Manganese Oxide.

Therefore, both lead-acid batteries and lithium batteries or lithium batteries of different materials have their own advantages and disadvantages, and we cannot simply define them as "good" or "bad".

When purchasing an electric bicycle, if you don’t need to extract the battery for charging, and don’t pursue the lightness of the car, and the charging environment is more complicated (for example, the summer is very hot and the winter is very cold), you can choose higher safety and higher cost performance. Lead-acid batteries.

If you want the vehicle to be light and able to run far, or sometimes need to extract the battery for charging (under a safe environment), you can choose a higher energy density and extractable lithium battery.

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