Why Pure Electric Vehicles Use High-cost Lithium Batteries

Why do pure electric vehicles use high-cost lithium batteries instead of lower cost lead-acid batteries?

Speaking of electric vehicles, we all know that they use electric motor batteries and electronic controls, whether they are low-speed or pure electric. But for such vehicles, they are also electric vehicles, but they have different treatment. All cars use batteries, while pure electric vehicles use lithium batteries instead of lead-acid batteries with lower cost. From the perspective of environmental protection, lithium batteries are more environmentally friendly than lead-acid batteries.

In addition, poor battery quality, falling off of electrode plate, electrolyte leakage, water loss, damaged shell and broken battery terminal block are also the reasons for battery damage. They are all the reasons for pure electric vehicles to use lithium batteries. Although lead-acid batteries are simple in process and very cheap in cost, compared with lithium batteries, their shortcomings are still very obvious, The charge and discharge life of lead-acid battery is short, with an average of 300 to 500 charge and discharge life, and the volume of the battery is heavy. Compared with lead-acid batteries and lithium batteries with the same capacity, the weight of lithium batteries is only one fifth of that of lead-acid batteries, and the charging and discharging life is long: the ternary polymer lithium battery has 1000 times of charging and discharging, and the highest lithium iron phosphate battery has 2000 times of charging and discharging life.

To sum up, although the market share of lithium-ion batteries is far less than that of lead-acid batteries, in terms of application fields, lead-acid batteries are obviously more suitable for low-speed electric vehicles, electric bicycles, special electric vehicles and other fields where the volume and weight requirements are not strict, and the field of pure electric vehicles is not in its scope.