Electric cars are about to enter the "lithium" era

The core of electric vehicles is batteries. The advantages and disadvantages of batteries determine the life of electric vehicles, the speed of weight, and traditional lead-acid batteries have always been the best choice for electric vehicle batteries, but lead-acid batteries are heavy and can occupy 40 % of the entire car. The capacity is also limited, and the service life is about two years.

With the development of technology, it has been discovered that in addition to lead-acid batteries, there is a battery with large and light energy, and the long-range battery is gradually replacing lead-acid batteries. It is called "lithium batteries."

Lithium battery has high voltage and light weight. The average voltage of a single battery can reach 3.7 V or 3.2 V. Relatively equal to the series voltage of 2-4 nickel-metal hydride batteries or nickel-clad batteries. If the customer requires the use of battery voltage clearance, then the use of lithium cells is also easy to form lithium batteries, easy to quickly increase the voltage of lithium cells.

The energy and density of lithium batteries are also high for other batteries. Lithium batteries have high stored energy density. The commonly used lithium battery density can reach 450-620 Wh / kg, which is 5-7 times that of lead-acid batteries. If people use batteries, they will also consider a very important problem, which is pollution.

3, for the weight of the battery to compare. A lithium battery weighs about 5-6 times as much as a lead-acid battery. Although the weight of a lithium battery is not much different from that of a polymer lithium battery. But looking at capacity and life span, people will choose lithium batteries.

The service life of a lithium battery is very long. If there is no accident, a lithium battery can be used for more than 6 years and up to 9 years. Normal use is more than 1,000 times. If there is no accidental use, it can reach more than 1,500 times.

5, self-discharge is low, and there is no memory effect. Adding a protective plate to a lithium battery in the production of a lithium battery can make the lithium battery overcharge and overcharge. Lithium batteries have high power tolerance themselves. Lithium batteries selected by electric vehicles can achieve a high effect ability of 15-30C charging and discharging, so that high-strength start-up acceleration on automobiles can be achieved.

Lithium batteries are green and environmentally friendly. Lithium batteries do not contain toxic substances such as lead, Mercury and cadmium.

I believe that in the near future, lithium batteries will definitely replace lead-acid batteries

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