Select Electric Vehicle Battery Tips
- Sep 18, 2018 -

Lead-acid batteries have the lowest price, good safety and are most commonly used. China is the world's largest producer of lead-acid batteries. It contains less pollution and has good recyclability. The downside is smaller. That is to say, under the same capacity, the battery weight and volume are large. Colloidal batteries belong to a kind of development classification of lead-acid batteries. The simplest method is to add coagulant to sulfuric acid to change the electrohydraulic of sulfuric acid into colloidal state. A colloidal battery is commonly referred to as an electro - hydraulic colloidal battery. In a broad sense, the difference between colloidal cells and conventional lead-acid batteries is not just that the electrohydraulic cells are changed to gelling. For example, non-solidified water-based colloids, which belong to the same type of colloidal cells in terms of their electrochemical classification structure and characteristics.

Lithium-ion batteries have a better capacity than nickel-metal hydride ones, and for lead-acid batteries of the same capacity, they weigh as much as a laptop, so that women, children and the elderly can use them. However, there is the possibility of explosion and combustion, which is a problem that needs to be solved with lithium-ion batteries.

The specific capacity of nickel-metal hydride battery is much better than that of lead-acid battery. The problem is that the management of nickel-metal hydride battery pack is quite a lot. Once the battery is overcharged, the problem of monomer battery separator melting will be formed, leading to the rapid failure of the whole battery pack. Therefore, the key technical problem of domestic nickel-metal hydride batteries is the problem of charger and battery management system, which has not attracted enough attention from battery manufacturers and automobile manufacturers. Therefore, the development of ni-mh batteries is greatly restricted.


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