锂离子电池及其材料(Lithium ion batteries and their materials)

锂离子电池及其材料（Lithium ion batteries and their materials）This article is contributed by yufesnackPdf documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view.2002 -, 09, 34 (5) Bo Shengmin lithium ion batteries and their materials 19Lithium ion batteries and their materialsBoshengmin(Tianjin Chemical Research & Design Institute, Tianjin 300131, China)Abstract: This paper introduces the basic principle and characteristics of lithium ion batteries, the development process and manufacturing process of lithium ion batteries, mainly from the cathode material of lithium ion battery anode materials, electrolytes, adhesives, etc. the diaphragm part of the lithium ion battery chemical production from the perspective of. The development status of lithium ion batteries and their materials in China are briefly introduced, and their future prospects are also prospected. Key words: lithium ion; battery; material: figure number: TQ131. 1 + 1, document identification code: A, article number: 1006-4990 (2002), 05 - 0019 - 02Lithium, ion, battery, and, its, materialsBO S Hengmin(Tianjin, Research & Design, Institute, of, Chemical, Industry, Tianjin, 300131)Abstract: The, basic, principle, and, characteristics, of, lithium, ion, battery, preparating, process,, are, introduced., and, The, anodeCathod materials, electrolytes binder, and diaphragm of lithium ion battery are also described. The present status and development trends of lithium ion battery and its materials in China are briefly stated.Key words: lithium ion; battery; material1 basic principles of lithium ion batteriesLithium ion battery refers to the use of carbon materials can be inhaled or desorption of lithium ions as anode active material; use of inhaled or lithium ion and lithium ion desorption of metal oxides as cathode active material, and made use of organic solvents for chemical reaction based on the above principle as the rechargeable battery electrolyte. When the battery is charged and discharged, the lithium ion (Li) is repeatedly inhaled or desorbed at the positive and negative poles, so it is called a lithium-ion battery. It mainly consists of positive electrode, negative electrode, diaphragm, electrolyte and so on. The reaction is as follows:LiCoO2 + C nCharge dischargeThe memory effect of the pool is rather heavy. ) more cycles, longer life. 7) the cobalt in the positive electrode of lithium ion battery is scarce, and the price is more expensive than 8. In recent years, manganese elements have been replaced by low price manganese. In 1980 3 the development process of lithium ion battery, conductive polymer, research in the world all plastic battery boom, were inspired by some carbon materials doped metal research in quantum chemistry after having conductive properties, Japanese researchers in the study of lithium metal anode instead of lithium batteries found in some carbon materials can be inhaled and good desorption of lithium ion and lithium ion battery design. After that, the new discovery of cobalt (LiCoO2) cobalt nickel (LiNiO3) with positive electrodes in nonaqueous electrolytes was carried out at the University of Oxford in England4 V above voltage research results, initially formed a lithium-ion battery.Li, 1-, x, CoO2 + C, nLi, X2 lithium ion battery featuresIon batteries mainly have the following advantages:) high energy density. Calculated by unit volume or unit mass, the energy stored by 1 is large. Therefore, lithium ion battery storage of the same energy, small size, light quality, that is,can be miniaturized and lightweight. High voltage. Because of the use of non-aqueous organic solvents, it is 2~3 times as much as the other 2 batteries. This is also an important reason for the high energy density.High current discharge, and safe. 3) small discharge. Nickel cadmium, nickel metal hydride battery 1 - 4 - 1 -. 23) no lead, 5 cadmium and other harmful substances, friendly to the environment. Memoryless effect. To use electric battery memory effect is 6After that, many aspects of detailed research have been carried out, and a variety of lithium-ion batteries which can meet the requirements of users have been manufactured and commercialized. Now, the research on the different forms and materials of lithium ion batteries and lithium two batteries is still being carried out in japan. 4 lithium ion battery manufacturing (see Figure 1), lithium ion battery manufacturing project has 4 parts, the first 3 projects, especially the electrolyte engineering raw materials are chemical production. 5 the main material of lithium ion battery) cathode material 1 cathode active material: cobalt lithium cobalt cobalt nickel,Charge drops when recharging. And nickel hydrogen batteries, especially nickel cadmiumBiography: Bo Shengmin, male, born in 1942, deputy chief engineer and Research Fellow of Tianjin chemical research and Design Institute, has published several papers and 2 monographs."China Academic Journal Electronic Publishing House. All rights reserved."ANIC CHEMICALS INDUSTRY inorganic salt industry 2002 - 09, 34 (5) 20 INORGAdhesive 4 is used to apply positive and negative active material to a metal foil as a collector. It is a unique technology for making lithium ion batteries. Adhesives that require good bonding, softness, resistance to electrolyte, oxidation resistance, and uniform film formation. The commonly used polymer binder, such as polyvinylidene fluoride, PTFE, Vinylidenefluoride tetrafluoroethylene hexafluoropropylene copolymer, styrene butadiene copolymer and polyurethane etc..(5) in order to prevent positive and negative short-circuit, and other batteries using paper or non-woven fabrics, lithium ion batteries using polyethylene microporous film. The electrolyte, non absorbent, good electrical insulation, good ionic conductivity, at 50 um thickness below the mechanical strength is still high, especially the heat can melt with special m special functions, such as 130 DEG C, microporous membrane closure, the battery automatically stops, to ensure the safety of the battery. Insulation gasket, 6 explosion-proof film, sealing ring, shell and so on. 6 lithium ion battery and its materials in our country present situation and Prospect of lithium ion batteries are from small battery varieties, specifications to a large battery of many varieties and specifications, and continue to strengthen the whole solidpolymer battery R & D and production, but also is the main figure 1 lithium ion battery manufacturing engineering the flow chart to reduce costs, such as cathode materials used for lithium manganese oxides, lithium manganese oxide and lithium ferrite. As mentioned earlier, the main use of lithium cobalt acid in power batteries, the price is low, the market will be greatly expanded. At present, the effect is very good. Cobalt, however, is expensive and scarce. The manganese price is one percent of the total lithium ion battery production. In addition to the negative electrode, most of the other materials are imported. After many years of research, foreign lithium manganese oxide has been in the trial stage. Mouth, the price is high. In the lithium ion battery materials, lithium, manganese, fluorine phosphorus acid lithium is still in research stage. In addition, organic sulfur compounds, especially in China are all resources in the country, so these materials made in our country as well as double thiol compounds as cathode has been studied for a long time. It saves foreign exchange and reduces costs. The main components of adhesives are polyvinylidene fluoride, PTFE and fluorine rubber lithium-ion batteries. They are able to replace lead-acid batteries, nickel cadmium batteries and nickel rubber. The conductive filling body is graphite,. Collector is copper foil. Carbon black hydrogen cell is the most promising battery.This high-tech products and) negative electrode materials, 2 negative active substances: mainly graphite, as well as the manufacture of its supporting materials, our country already has a certain level. But hard carbon,. It is mainly made of specially made artificial graphite. Further research work should be done to develop soft carbon adhesives such asvinylidene fluoride, styrene butadiene rubber and fluorine rubber as soon as possible. The productivity of conductive fillers is to make the lithium-ion battery in China reach the world advanced level and be graphite,. The collector is aluminum foil. Low carbon black, more conducive to commercialization, internationalization. Electrolyte 3 lithium ion battery electrolyte selection is very important. Reference: because the protective film is formed on the surface of the anode and the electrolyte reaction affect the battery [1, Yong Quan 1 new energy materials [M]1 Tianjin: Tianjin University press, 2000, 12: 32 ~ characteristics. High ionic conductivity is required at high and low temperatures, on the positive and negative polesOne hundred and fourteenBe resistant to electrochemical oxidation,. Good permeability to electrodes. For this purpose, cyclic carbonates such as ethylene carbonate, propylene carbonate and chain carbon are generally usedAn acid ester, such as carbonic acid two methyl ester, carbonic acid two ethyl ester and ethyl carbonate, is used as a mixed solvent to dissolve the electrolyte salt, and the electrolyte is made into an electrolyte. The electrolyte salt of inorganic salt and organic salt, inorganic salt with lithium perchlorate (only used in disposable lithium ion batteries), lithium tetrafluoroborate, six fluorine lithium arsenate and six fluorine lithium phosphate, the six most commonly used lithium fluoride. The organic salt has three fluorine methyl sulfonic acid lithium, three fluorine methyl sulfonic acid, aminolithium and so on. Electrolyte actual twoA liquid electrolyte in which the monomer is added and can be made solid after polymerizationThe body electrolyte is called the polymer electrolyte. So that it can be made outA full solid polymer lithium ion battery. It is more compact, safe, easy to process and arbitrary shape. It is called the second generation lithium ion battery."China Academic Journal Electronic Publishing House. All rights reserved."[2] Uetani Keio 1... [3] Akira Yoshino 1 (6): 4201979.09 [4 1 [6 will be the original threat]] will threaten the original filial filial piety 1 small [7] for a long time to see the goodDevelopment of two batteries and recent technical trends [J][5] komenotsu Ministry of education and other 1 high performance two batteries in force with powder and [J powder and 1.1 Journal of the Chemical Society of Japan, 2000, (8): 523 academic installations, 2000, (10): 51 industry, 2000, 32 (12): 441 technology for the latest two battery materials [M]1Battery [M] 1-Publication, 1999.10Materials development and manufacturing technology for batteries [[J]] basis for 1 cell batteries [J] 1 chemical industry, 1997, 61-Publish,(received date: 2002 - 04 - 26)One。