What fields are lithium-ion batteries widely used in?
by:Vglory 2021-04-12
Development prospects of lithium-ion batteries: Lithium-ion batteries are batteries made of lithium metal or lithium alloy as the negative electrode material and using non-aqueous electrolyte solutions. In 1912, Gilbert n Lewis first proposed and studied lithium metal batteries. In the 1970s, M.S. WhitTIngham proposed and began to study lithium-ion batteries. Due to the very active chemical properties of metal lithium, the processing, storage and use of metal lithium have very high requirements on the environment. Therefore, lithium-ion batteries have not been used for a long time. With the development of science and technology, lithium-ion batteries have become the mainstream. Lithium ion batteries can be divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain metallic lithium and can be recharged. The fifth-generation rechargeable battery lithium metal battery was born in 1996, and its safety, specific capacity, self-discharge rate and performance ratio are better than lithium-ion batteries. In 1982, the mercury sphygmomanometer Argarwal and Sielman of the Illinois Institute of Technology discovered that lithium ions have the characteristic of intercalating graphite, which is a fast and reversible process. At the same time, lithium-ion batteries are made of lithium metal, and their safety is worrying. Therefore, people try to make use of the characteristics of lithium ions embedded in graphite to make rechargeable batteries. The first available lithium ion graphite electrode was successfully trial-produced by Bell Laboratories. In 1983, M. Hackeray and J. Gendenough et al. discovered that manganese spinel is an excellent cathode material, which has the characteristics of low price, good stability, conductivity and lithium conductivity. Its decomposition temperature is high, and the oxidation degree is much lower than that of lithium cobalt oxide. Even if short circuit or overcharge occurs, it can prevent the danger of combustion and explosion. In 1989, A. Manthiram and J. Woodenough discovered that a positive electrode using a polymer anion would have a higher voltage. In 1992, Sony invented a lithium-ion battery with carbon material as the negative electrode and lithium compound as the positive electrode. During the charging and discharging process, there is no metallic lithium, only lithium ions. This is a lithium ion battery. Later, lithium-ion batteries revolutionized consumer electronics. This battery uses lithium cobalt oxide as the cathode material and is still an important power source for portable electronic devices. In order to cultivate better varieties, various materials have been studied. Manufacture of lithium-ion buses in the UAE (made in the Netherlands) and produce unprecedented products. For example, lithium sulfur dioxide batteries and lithium thionyl chloride batteries are very characteristic. Their positive active materials are also solvents for the electrolyte. This structure only appears in non-aqueous electrochemical systems. Therefore, the research of lithium ion batteries has also promoted the development of electrochemical theory of non-aqueous systems. In addition to using a variety of non-aqueous solvents, polymer thin film batteries have also been studied. Lithium-ion batteries are widely used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, as well as uninterrupted power supplies, post and telecommunications, as well as power tools, electric bicycles, electric motorcycles, electric vehicles, military equipment, aerospace and other fields. With the development of microelectronics technology in the 20th century, the degree of miniaturization of equipment is increasing. Lithium-ion batteries then entered the stage of large-scale practical use. The earliest application was lithium secondary batteries for pacemakers. Since the self-discharge rate of lithium-ion batteries is very low, the discharge voltage is very low. It makes it possible for a pacemaker to be implanted in the body for long-term use. The nominal voltage of lithium manganese batteries is generally higher than 3.0 volts, which is more suitable for integrated circuit power supply. They are widely used in computers, calculators and watches. Lithium-ion batteries are widely used in mobile phones, notebook computers, power tools, electric cars, street lamp backup power supplies, navigation lights, household appliances, etc., which can be said to be the most used group. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.
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