Light weight, larger than energy, up to 150Wh/kg, is 2 times that of nickel -metal hydride batteries, and 4 times the lead -acid battery. Lithium battery consumption has fewer resources, and because the elements used in lithium manganate batteries are more reserves, compared to lead -acid and nickel -metal hydride batteries may further increase their prices, and the cost of lithium -power batteries is further reduced. The weight of the lithium battery for electric bicycles is 2.2-4 kg, the weight of the lead-acid battery is 12-20 kg, and the weight of the lithium battery is about one-quarter to one-third of the lead-acid battery, which is about 10 kilograms lighter than the lead-acid battery ( 36V, 10AH battery), the battery weight was reduced by 70%, and the total weight of the vehicle was at least 20%. In addition, the general lithium tram is a simple electric bicycle. Because the battery and the vehicle are light, the battery mileage of the same voltage and the same capacity is longer. The weighs of ordinary electric vehicles are more than 40 kg. Between 7 and 26 kg. Both ladies and the elderly can move easily, and the human ride is also very light, and both exercise and leisure. (3) The volume is small, up to 400Wh/L, and the volume is one -half to one -third of the lead -acid battery. Provides more reasonable structure, design conditions, design space and possibilities with more reasonable structure and more beautiful appearance. At this stage, due to the limitation of the volume and weight of the lead -acid battery, the design ideas of the designers have been greatly agreed. As a result, the electric bicycles at this stage are "thousand cars", similar and monotonous in terms of structure and appearance. The use of lithium batteries provides designers with greater space and conditions for showing design ideas and design styles. Of course, at the same time, it has also led to the diverse size of the lithium -power battery for electric bicycles, which is not conducive to the development of the lithium power battery industry. The lithium -power battery industry also needs to formulate national standards for lithium battery for electric bicycles as soon as possible to accelerate the alternative of lithium batteries in the field of electric bicycles. Of course, lithium batteries are very different in the volume of different materials and different process batteries in the continuous development process. How to unify is also a difficult point.

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