Application field, status quo and prospect of lithium ion battery
Application field, current situation and prospect of lithium ion battery. Lithium ion battery has always been the first choice of green battery. With the continuous improvement of lithium battery production technology and the continuous compression of cost, lithium battery has been widely used in many fields in recent years. Lithium ion batteries can be divided into power, consumption and energy storage according to application scenarios.
Working principle of lithium ion battery
Lithium ion battery is a secondary battery (rechargeable battery), which mainly depends on the lithium ion moving between the positive and negative electrodes to work. During charging and discharging, Li+is embedded and disembedded back and forth between the two electrodes: during charging, Li+is disembedded from the positive electrode, embedded into the negative electrode through the electrolyte, and the negative electrode is in a lithium rich state; The opposite is true when discharging.
Application field of lithium ion battery
In recent years, the application scope of lithium ion batteries is more and more extensive. Lithium ion batteries are widely used in energy storage power systems such as water power, thermal power, wind power and solar power plants, 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 electric bicycles, electric vehicles and other fields.
1.Application of Electric Vehicles
At present, most electric vehicles in China still use lead-acid batteries as power. The battery itself weighs more than ten kilograms. If lithium ion battery is used, the battery weight is only about 3 kg. Therefore, it is an inevitable trend to replace the lead-acid battery of electric bicycles with lithium ion batteries. In this way, the lightness, convenience, safety and cheapness of electric vehicles will be welcomed by more and more people.
2.Application of Electric Vehicles
For China, automobile pollution is becoming increasingly serious, and the damage to the environment caused by exhaust gas and noise has reached the level that must be controlled and treated, especially in some large and medium-sized cities with dense population and traffic congestion. Therefore, the new generation of lithium-ion battery has been vigorously developed in the electric vehicle industry due to its characteristics of pollution-free, less pollution and energy diversification. Therefore, the application of lithium-ion battery is another good solution to the current situation.
3.Aerospace Applications
Due to the strong advantages of lithium-ion batteries, the space organization also applies lithium-ion batteries to space missions. At present, the main role of lithium-ion batteries in the aviation field is to provide support for calibration and ground operation during launch and flight; At the same time, it is conducive to improving the efficiency of the primary battery and supporting night work.
4.Other applications
From electronic watches and watches, CD players, mobile phones, MP3, MP4, cameras, cameras, various remote controls, shaving knives, pistol drills, children‘s toys, etc. Lithium ion batteries are widely used in emergency power supplies and electric tools in hospitals, hotels, supermarkets, telephone exchanges and other places.
Application Status and Prospect of Lithium Ion Battery
Rising prices may cause problems for lithium-ion batteries, as cost is the main factor hindering their expansion to renewable energy applications. However, lithium is not a major factor in the cost of lithium-ion batteries. Lithium is used as cathode and electrolyte, which only accounts for a small part of the total cost. Among these components, the processing cost 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.
As lithium ion battery is the preferred source of portable electrochemical energy storage, improving its cost and performance can greatly expand its application range, and make it possible to rely on new energy storage technologies. So far, a lot of research on lithium ion battery has been in electrode materials. The electrode with higher multiplying capacity, higher charging capacity and (for cathode) sufficiently high voltage can improve the energy and power density of lithium battery, and make it smaller and cheaper.
Lithium ion battery has obvious basic advantages and decades of research, which makes it become the battery with high energy density, high cycle life and high efficiency. In the past two decades, the research of 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.
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