Electric vehicle batteries are the source of power in electric vehicles. The vast majority of electric vehicles are equipped with lead-acid batteries, which have low cost and high cost performance. Because this battery can be recharged and can be used repeatedly, it is called a "lead-acid battery."
The following four types of power batteries can be used by electric bicycles, namely valve-controlled lead-acid maintenance-free batteries, colloidal lead-acid batteries, nickel-metal hydride batteries, and lithium-ion batteries.
It is an improvement to the ordinary lead-acid battery with liquid electrolyte. It uses a gel-like electrolyte, and there is no free liquid inside. Under the same volume, the electrolyte capacity is large, the heat capacity is large, and the heat dissipation ability is strong, which can avoid the thermal runaway phenomenon that the general storage battery is easy to produce; ; Uniform concentration, no acid stratification.
Lithium Ion Battery
Lithium-ion batteries are generally considered to have the following advantages: large specific energy; high specific power; small self-discharge; no memory effect; good cycle characteristics; fast discharge, high efficiency; wide operating temperature range; no environmental pollution, etc.