Introduction to the characteristics of lithium-ion power lithium batteries

It is 3 times that of nickel-cadmium batteries and nickel-hydrogen batteries, and nearly 2 times that of lead-acid batteries. This is also an important reason why lithium-ion power lithium batteries have higher energy. Therefore, when the small lithium-ion power lithium battery small lithium-ion power lithium battery [2] composes the same voltage power lithium battery pack, the number of lithium-ion power lithium batteries used in series will be much less than that of lead-acid batteries and nickel-hydrogen batteries. If there are more single cells in the power lithium battery, the higher the consistency requirements of the single cells in the battery pack, the more difficult it is to do. After the battery pack has problems in the actual use process, it is generally one of them. Problems with two single batteries then cause problems for the entire battery pack. Therefore, it is not difficult to understand why the 48V lead-acid battery has higher feedback than the 36V lead-acid battery. From this perspective, lithium batteries are more suitable for the use of power lithium batteries. For example, a 36V lithium battery requires only 10 cells, while a 36V lead-acid battery requires 18 cells, that is, three 12V battery packs, and each 12V lead-acid battery has six cells or six cells. . The light weight is larger than the energy, up to 150Wh/Kg, which is 2 times that of NiMH batteries and 4 times that of lead-acid batteries, so the weight is one-third to one-fourth of lead-acid batteries with the same energy. From this perspective Lithium batteries consume less resources, and because of the large reserves of elements used in lithium manganate batteries, the price of lead-acid and nickel-hydrogen batteries may be further increased, and the cost of lithium-ion power lithium batteries will be further reduced. The weight of lithium ion batteries for electric bicycles is 2.2-4 kg, and the weight of lead-acid batteries is 12-20 kg. The weight of lithium batteries is about one-fourth to one-third of that of lead-acid batteries, which is about 10 kg lighter than lead-acid batteries. (36V, 10Ah battery), the weight of the battery is reduced by 70%, and the total weight of the vehicle is reduced by at least 20%. In addition, the general lithium battery is a simple electric bicycle. Because the battery and the whole vehicle are light, the battery of the same voltage and the same capacity has a longer mileage. The average electric vehicle weighs more than 40 kg, while the lithium ion power lithium battery electric bicycle The weight is between 7 and 26 kg. Both the ladies and the elderly can easily move, and the human riding is also very light, and it has both sports 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. The design conditions, design space and possibility of a more reasonable structure and a more beautiful appearance are provided. At this stage, due to the limitations of the volume and weight of lead-acid batteries, designers' design ideas are greatly restricted, resulting in the structure and appearance of electric bicycles at this stage, which are similar in structure and appearance, and monotonous. The use of lithium-ion batteries provides designers with more space and conditions to display design ideas and styles. Of course, it also leads to the various sizes of lithium-ion power lithium batteries for electric bicycles, which is not conducive to the development of the lithium-power lithium battery industry. The lithium-powered lithium battery industry should also formulate national standards for lithium-ion batteries for electric bicycles as soon as possible to accelerate the replacement of lead-acid batteries by lithium batteries in the field of electric bicycles. Of course, in 2013, lithium-ion batteries are in the process of continuous development. There are big differences in the volume of different materials and different processes. How to unify is also a difficult point. Long life cycle can reach 1000~3000 times. Based on the capacity retention of 70%, the number of 100% charge and discharge cycles of the battery pack can reach more than 200 times, the service life can reach 5-8 years, and the life span is about two to three times that of lead-acid batteries. With technological innovation and equipment improvement, the battery life will be longer and the cost performance will be higher and higher. (5) The self-discharge rate is low, less than 5% per month. Wide range and good low temperature performance. Lithium-ion power lithium battery can work between -40℃～+55℃, while aqueous battery (such as lead-acid battery, nickel-hydrogen battery) at low temperature will cause poor electrolyte fluidity. Performance is greatly reduced. There is no memory, so there is no need to discharge like Ni-Cd batteries and Ni-MH batteries before each charge, and it can be charged anytime and anywhere. The depth of battery charge and discharge has little effect on the life of the battery. It can be fully charged and fully discharged. Our cycle test is fully charged and fully discharged. Disclaimer: Some pictures and contents of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Do you know what is required for the certification of lithium-ion battery packs?