The difference and advantages and disadvantages between lithium battery electric vehicle and lead acid electric vehicle

1. Durability/battery life: The service life of lead-acid batteries is generally about 2 years, while lithium batteries are more durable, and their service life is mostly 4-5 years; In addition, the lead-acid battery has a complete charge and discharge cycle of 300 times, while the lithium battery has a complete charge and discharge cycle of more than 500 times.

2, volume mass/easy operation: compared with the light body of lithium battery which is only 2.5/3 kg, the weight of lead-acid battery with the same capacity is about 16/30 kg; Not only is the battery larger in mass, but also in volume; Compared with lead-acid cars, which are difficult to move, lithium trams are detachable and easier to ride and carry.

3, market price/cost-effective: the current market mainstream lead-acid battery is about 450 yuan, while the lithium battery is more expensive at about 1000 yuan; The price of the two types of battery is different, and the price of the corresponding electric car is also different. At the same time, lithium battery warranty period is 1 year longer than lead-acid and can be guaranteed for 2 years.

4, range/battery capacity: the same 48V battery, full charge, lead-acid/lithium battery electric vehicle range is similar, depending on speed, motor size, and other factors. Of course, in terms of battery capacity, lead-acid batteries are slightly larger than lithium batteries.

5, travel kilometers: the same 48V battery, in the case of full charge, lead-acid battery and lithium battery electric vehicle can travel 30-40 kilometers. The speed depends mainly on the size of the motor used.

6. Price and warranty: at present, the mainstream battery on the market is 48V. If it is replaced, the lead-acid battery is about 450 yuan, and the warranty period is 1 year.

7. Environmental protection: After the state issued "Access Conditions for lead Battery Industry" in 2012, the lead-acid industry has been reorganized and integrated, and most manufacturers have internalized into green production without cadmium and arsenic, which is more environmentally friendly and energy-saving. Only in the recycling process, if the method is improper, it may cause pollution; Lithium batteries are relatively green in terms of production and recycling.

8. Trend: With the introduction of the new national standard for electric bicycles, lightweight batteries and high energy density become the inevitable trend of power energy. Lithium batteries are undoubtedly the best choice and the development trend.

Seeing the above eight differences, I believe you will find that compared with lead-acid battery is not easy to operate, bulky, and not durable, lithium battery electric vehicle seems to have more advantages. Of course, lead-acid electric cars are cheaper.

Lead-acid batteries have a higher average voltage and higher energy density than lithium batteries, which means that lithium batteries of the same size have more capacity. In addition, lithium batteries are relatively light, easy to carry, and relatively long life. In addition, lithium batteries are more adaptable to high and low temperatures, less affected by temperature factors, and more green.

Of course, lithium battery also has three shortcomings, if the choice of inferior battery, its safety and stability is relatively poor, if the improper operation, it is easy to spontaneous combustion risk, of course, choose safe and guaranteed products, the possibility of spontaneous combustion is very small. In addition, lithium batteries can not discharge large currents, and production requirements are high, and higher cost. Compared with lithium batteries, lead-acid batteries are relatively cheap and more acceptable to the public. In addition, lead-acid batteries have better discharge performance at a high rate. Most importantly, lead-acid batteries have a higher recycling price than lithium batteries.

However, lead-acid batteries also have their own disadvantages, such as environmental pollution caused by heavy metals; Compared with lithium batteries, lead-acid batteries have a lower energy density, And it doesn't last as long as lithium batteries.