The energy of a lithium battery is more than twice that of a lead-acid battery. At present, an electric bicycle with a lead-acid battery can travel 50~70km on a single charge, and it can travel 100~150km with a lithium battery of the same weight. Its charge and discharge times are also high. The problem is that the price is relatively high, 6 times that of lead-acid batteries, and it costs 1,800 to 2,000 yuan for each car. In addition, the existing specifications are all small models suitable for mobile phones and laptops, and larger models above 10Ah have yet to be developed. This type of battery can only be used for luxury bicycles or electric motorcycles, but its price reduction potential is large. , The prospects are very good.

　　Lithium battery electric bicycles have the advantages of long life, light weight and small size. There is a lithium battery electric bicycle with a compact shape, weighing only about 16 kilograms, and the battery is only 2.5 kilograms the size of a book. It can be carried in a bag, and can also be used to charge a computer, which is equivalent to the horsepower. The lead-acid battery weighs about 15 kilograms. However, this kind of electric car is more expensive, with a price of more than 2,800 yuan. "This kind of car has only been on the market for a week, and the price is relatively high, but the sales are better than expected, and several cars have been sold in a week." Mr. Zhang, the person in charge of Luyuan Electric Vehicles, said that this car uses a lithium battery and can run 30 times on a single charge. About kilometers. Lithium battery electric vehicles are also available in specialty stores of Giant, Bridgestone and other brands. "The power performance of a lithium battery electric bicycle is similar to that of a lead-acid battery. It can be charged for 6 to 8 hours and can run 30 to 45 kilometers depending on the battery capacity. The weight is only about 1/5 of that of a lead-acid battery." The sales staff of Giant said, lithium The biggest advantage of battery electric bicycles is their long lifespan. A set of batteries can be used for 4 to 5 years, while the lifespan of lead-acid batteries is only about 2 years.