Characteristics of Lithium Ion Batteries_Development Prospects of Lithium Ion Batteries

Features of Lithium Ion Battery

   Lithium-ion battery has many remarkable characteristics, its advantages are mainly:

   1. The working voltage is high. Lithium-ion low and high operating voltage is 3.6V, which is the working power of Ni-MH and Ni-Cd batteries.

   3 times the pressure.

   2. Higher than energy. The specific energy of lithium-ion batteries can reach 150W·h/kg, which is 3 times that of nickel-cadmium batteries.

   1.5 times that of Ni-MH batteries.

  3. Long cycle life. At present, the cycle life of lithium-ion batteries has reached more than 1,000 times.

   can reach tens of thousands of times, surpassing other types of secondary batteries.

   4. Low self-discharge rate. The monthly discharge rate of lithium-ion batteries is only 6-8%, which is much lower than that of nickel-cadmium batteries (25-30%)

   and Ni-MH battery (15-20%).

   5. No memory. It can be charged at any time according to requirements without reducing battery performance.

   6. No pollution to the environment. Lithium-ion batteries do not contain harmful substances and are veritable “green batteries”.

   7. Ability to make any shape.

   Li-ion batteries also have some shortcomings, mainly in the following aspects:

   1. High cost. Mainly because the cathode material LiCoO2 has a high price

  The calculation is already lower than that of nickel-metal hydride batteries and the same as nickel-cadmium batteries, but higher than lead-acid batteries.

   2. There must be a special protection circuit to prevent overcharging.

The development prospects of lithium-ion batteries

   Rising prices may cause problems for lithium-ion batteries, because cost is the main factor hindering their expansion into renewable energy applications. Nevertheless, lithium is currently not a major factor in the cost of lithium-ion batteries. Lithium is used in the cathode and electrolyte, which is only a small part of the total cost. Among these components, processing costs and the cost of cobalt in the cathode are the main factors. In view of the basic advantages of lithium-ion batteries, it is entirely possible that lithium-ion batteries will continue to dominate portable electrochemical energy storage for many years to come.

   Since lithium-ion batteries are the preferred source of portable electrochemical energy storage, improving their cost and performance can greatly expand their application range and make it possible to rely on new technologies for energy storage. So far, a lot of research on lithium ion batteries has been in electrode materials. Electrodes with higher rate capacity, higher charge capacity, and (for the cathode) sufficiently high voltage can increase the energy and power density of lithium batteries and make them smaller and cheaper.

   Lithium-ion batteries have obvious basic advantages and decades of research, making them develop into today’s batteries with high energy density, high cycle life, and high efficiency. In the past two decades, research on electrode materials for lithium-ion batteries has been exciting. With the discovery of new materials and strategies, lithium-ion batteries will undoubtedly have an increasing impact on our lives in the next few years.

Application areas of lithium-ion batteries

In recent years, the application range of lithium-ion batteries has become more and more extensive. Lithium batteries are widely used in energy storage power systems such as water power, thermal power, wind power and solar power stations, as well as electric tools, electric bicycles, electric motorcycles, electric vehicles, military equipment, Aerospace and other fields. At present, lithium batteries have gradually expanded to the fields of electric bicycles and electric vehicles.

   1. Application of electric vehicles

   At present, most electric vehicles in our country still use lead-acid batteries as power. The battery itself has a mass of more than ten kilograms. If a lithium ion battery is used, the weight of the battery is only about 3 kg. Therefore, it is an inevitable trend for lithium-ion batteries to replace the lead-acid batteries of electric bicycles. In this way, the lightness, convenience, safety and cheapness of electric bicycles will be welcomed by more and more people.

   2. Application of electric vehicles

   For our country, automobile pollution is becoming more and more serious. Exhaust gas, noise and other environmental damage have to be controlled and managed to the extent that the situation has become more serious in some densely populated and traffic congested cities. Therefore, the new generation of lithium-ion batteries have been vigorously developed in the electric vehicle industry due to their pollution-free, low-polluting, and energy-diversified characteristics, so the application of lithium-ion batteries is another good strategy to solve the current situation.

   3. Aerospace applications

   Due to the strong advantages of lithium-ion batteries, space organizations also apply lithium-ion batteries in space missions. At present, the main role of lithium-ion batteries in the aviation field is to provide support for launch and flight calibration and ground operations; at the same time, it is beneficial to improve the efficiency of primary batteries and support night operations.

   Four, other applications

   from electronic watches, CD players, mobile phones, MP3, MP4, cameras, video cameras, various remote controls, shaving knives, pistol drills, children’s toys, etc. Lithium-ion batteries are widely used in electric tools, ranging from emergency power sources in hospitals, hotels, supermarkets, and telephone exchanges.

Post time: Jan-04-2021