Difference between new energy battery and traditional automobile battery

The power battery used in new energy vehicles is lithium-ion battery, while the battery used in traditional vehicles is lead battery.

Therefore, the difference between new energy battery and traditional automobile battery is very big.

Firstly, from the perspective of battery materials, the lithium battery pack used in new energy vehicles is made of lithium aluminum alloy and lithium ion polymer;

Traditional lead-acid batteries are made of metal lead and lead dioxide.

From the perspective of price, the materials used in lead batteries are cheaper than those used in lithium batteries, so the overall price of batteries is also cheaper.

Then there is the service life.

Lithium batteries used in new energy vehicles have longer life than lead batteries used in traditional vehicles.

The lithium battery pack has 3000 cycles.

In the traditional car, the lead battery cycle charging times are generally about 300-350 times.

Generally speaking, the service life of lead-acid battery is only 2-3 years, and that of lithium battery is as long as 7-8 years. From the point of view of service time, the cost of lithium battery is lower.

In terms of energy density, lithium batteries used in new energy vehicles have higher energy density, which can reach 200-320 WH / g.

The energy density of lead-acid batteries used in traditional cars is low, which can only reach 50 ~ 70 wh/ g.

With the current technology level, the energy density of lithium battery pack is increasing, and the technology of lead-acid battery is fully mature, so its energy density can only remain basically unchanged.

At present, lithium battery pack is widely used in new energy vehicles, and the advanced level of lithium battery pack technology is also an important factor restricting the development of electric vehicles.