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Analyses the basic structure and working principle of lithium-ion batteries

by:Vglory      2020-12-07
Source: 2020 - 04 - 12 21:49 hits: time introduces the basic structure and working principle of lithium-ion batteries, lithium ion battery, Swing arm battery) Lithium ion battery, Also known as the rocking chair batteries) Refers to two different types of reversible insert and release lithium ion embedded lithium compounds as the positive and negative battery system. World was originally invented by Kuribayshi and his partner, and won the Japanese asahi chemical industry of the world's patents. Lithium ion batteries to t. Nagaura and k. Tozawz named. What is lithium ion battery, what is lithium ion battery can refer to my previous articles. So far, the development of secondary lithium ion battery has made great progress. Japan some of the biggest companies have to commercialise the battery, and start mass production, efforts to improve the battery is in progress. Experts predict that in the next 10 years, lithium ion battery is expected to replace the current popularity of nickel cadmium battery. Basic structure and working principle of lithium-ion batteries in 1980, armand put forward with inserted lithium compound instead of lithium metal lithium secondary battery cathode, and puts forward the concept of 'rocking-chair batteries. Since then, there appeared some experimental rocking-chair batteries, its basic principle can be described as: LiyMnYm + AZBw Liy_XMYm + LixAzBw, LiyMnYm inlay is a kind of low potential of lithium compounds, used as the anode, such as Li WO2, LiMoO2, Li6Fe2O3 etc; AZBW inlay is a high potential of lithium compounds, used as the anode, such as TiS2, WO3, NbS2, V20, etc. With lithium metal as compared to the cathode for lithium secondary batteries, lithium ion battery safety performance has the very big enhancement, has the good cycle life. However, due to the high potential ( 0. 7 v - 2. Embedded lithium ion anode materials ( LiWO2, LiMoO, etc. ) Ov with Li/Li +) , lithium ion embedding capacity is low, lost the secondary lithium battery high voltage, the ratio can be advantage. As lithium ion, research and development of embedded compounds, rocking chair batteries got further development of the positive and negative material. In 1987, Auburn Barberie put forward 7 'M002 ( WO2) ilipf6- PC/LiCoO2 lithium ion concentration difference battery, the battery directly to compounds that are rich in lithium ( Such as LiCoO:) As the anode, the lithium poor compounds ( Such as Mo42, W02, etc. ) For the anode, forming 'rocker battery. At first, the whole battery discharge state, after the charging process, the battery in charging status. These systems are still problems of low energy consumption, but they have made great progress in solving the safety and recovery efficiency. In 1991, SONY of Japan first invented the practical radial battery, referred to as lithium ion battery. The principle is shown in figure 1. 1. The principle diagram of the lithium-ion batteries, lithium ion battery principle tutu 1. 1 principle of rechargeable lithium ion batteries in the battery charge and discharge process, the electrodes of lithium ion in embedded/emergency response, also can be regarded as a lithium ion moves back and forth between the positive and negative, so called lithium ion batteries. The battery overcomes the drawback of lithium secondary battery, better to keep the advantages of lithium secondary battery, immediately became a hot issue of research on lithium secondary battery.
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