Why are lithium-ion batteries better than lead-acid batteries?

Most people will more concern about price and battery, which are the most important parts of electric vehicle before buying a car. There are two kinds of batteries in the market: lead-acid batteries and lithium-ion batteries, which largely determine overall price. Lead-acid batteries are cheap while lithium-ion batteries are expensive. This makes many consumers prefer lead-acid Battery to lithium-ion batteries, but is lithium battery of electric car very expensive? 

Is lead-acid battery "true cheap" or "fake affordable"?

We must carry out a comparison to buy something, and have a comprehensive understanding of all aspects; the same is true for buying an electric car. For example, future maintenance, charge and discharge loss, battery replacement, etc. will cost a lot of money in the future!

It understood that the average consumer's electric vehicle replacement cycle is around 4-5 years. Lead-acid batteries, although cheap, have high annual losses and often need to change once a year. In general, the price of a better lead-acid battery is about 600 yuan, so on the same electric car; it only costs about 2,400 yuan to replace the battery.

Let us look at the electric car with a lithium battery. Buy a lithium battery electric car about 3500 yuan. The lithium battery warranty is about 3 years, which means that in the past three years, we do not have to pay extra to replace the battery. In addition, the life of lithium batteries is very long, all about 5 years. In other words, as long as we usually cherish ourselves, we will not have any other expenses on the electric car in five years.

Therefore, on the surface electric car that bought lead-acid battery was cheaper.in fact, this is fake benefit!

Lithium batteries do not have memory; do not pay too much attention when charging!

When charging an ordinary lead-acid battery electric vehicle, it has been worried about the memory effect of the battery. When a lithium battery is used, everyone can breathe a sigh of relief. The lithium battery does not have a memory effect, so it does not need to be too much in the daily charging process. Be careful!

Lithium batteries are less polluting than lead-acid batteries!

Lithium-ion batteries are greener than ordinary batteries. have little environmental pollution, and have a long service life to avoid environmental pollution caused by ordinary battery replacement.

Lithium batteries are lighter than bulky lead-acid batteries!

Lithium batteries are much smaller in volume and quality than lead-acid batteries. Under normal circumstances, lead-acid batteries have a weight of 16-30 kg and a large volume. While lithium batteries generally weigh 2.5-3.0 kg, and the volume is relatively large. Small, so riding is easy and easy to carry. General lithium battery electric vehicles are light and beautiful, easy to move, and many lithium battery electric vehicles can folded.

Lead-acid batteries are easy to explode. Lithium battery is safer and safer to use

Self-ignition explosions of electric vehicles often occur, most of which caused by battery charging and discharging. Some experts have explained that the charging time of lead-acid batteries is too long. After charging to the end, after the two poles converted into effective substances, if they continue to charge, a large amount will generated. Hydrogen and oxygen gases. When the concentration of such a mixed gas is 4% in the air, it is too late to escape. If the vent hole clogged or the gas is too much, an explosion will occur if it encounters an open flame, and the battery may damage if it has damaged, and the person may be injured or damaged. That is, once the lead-acid battery is overcharged, it will increase the chance of explosion. At present, lead-acid batteries on the market do not do any "overcharge protection", which makes the lead-acid batteries in charging, especially at the end of charging, extremely dangerous.

Nowadays, lithium batteries can circumvent this problem very well. The lithium-ion dog BMS-battery management system can provide full protection for the battery. The functions include charging/discharging high and low temperature protection; single-section overcharge/over-discharge voltage protection; Charge/discharge overcurrent protection; cell balance; short circuit protection; charge reminder and so on. First, we can try our best to extend the service life of the battery. Second, safety more guaranteed.

Moreover, the intelligent-lithium dog system can achieve intelligent warning. When battery is charged/discharged at high or low temperature, overcharge, over discharge, overcurrent, P+/P-short circuit, etc. (all of these situations are easy to cause battery to explode), The Zhi Li Dog system will simultaneously alert owner through mobile app and smart hardware on electric car. Prevent dangerous situations.

The page contains the contents of the machine translation.