Hefei Guoxuan Hi-tech, Ningbo Moxi Technology, Hubei Wanrun New Materials, Ningde New Energy, Sichuan Xingneng New Materials, Inner Mongolia Guhua Carbon New Materials Technology, Shenzhen Yineng New materials, Xiangyang Huahong New Materials, Foshan Defang Nano new Materials
In recent years, China's lithium battery production has increased significantly, as of the end of 2009, lithium ion battery cable meter output as high as 1.875 billion. Lithium battery cathode materials have also been developed from a single lithium cobalt acid material to lithium cobalt acid, lithium manganese acid, lithium nickel cobalt acid, lithium nickel cobalt manganese acid, lithium iron phosphate and other materials go hand in hand. Driven by the growth of the lithium battery market, the overall market for lithium battery materials is on the rise, and the progress made in the research of lithium cathode materials indicates that its market prospects are broad.
Lithium iron phosphate is a new material that has triggered the lithium battery revolution industry, and is the forefront of the development of the lithium battery industry. Due to its own advantages, lithium iron phosphate batteries are widely used in various fields such as hybrid electric vehicles, electric tools, electric white vehicles, electric moped, power generation and energy storage devices. Hybrid electric vehicle (HEV) is the main development direction of new energy vehicles in the next few years. With the continuous increase in the output of hybrid electric vehicles and the increase in the share of hybrid electric vehicles, the market size of lithium iron phosphate batteries will grow rapidly.
The performance of lithium-ion batteries mainly depends on the positive and negative electrode materials, lithium iron phosphate as an emerging lithium-ion battery positive material, its safety performance and cycle life than other positive electrode materials have obvious advantages, these are the most important technical indicators of power batteries. Lithium iron phosphate has the advantages of non-toxic, harmless, good safety and long life, and has become one of the ideal cathode materials for a new generation of lithium-ion batteries.
1、The double-cone rotary vacuum dryer is a double-cone rotary tank, the middle of the equipment is cylindrical, the two ends are conical, the top end of the cone is designed for open feeding (also as a manhole), and the other end is the butterfly valve discharge. The tank body is divided into three layers inside and outside, and the heating medium of the middle jacket can be steam, circulating hot water or thermal oil, and the insulation layer is medium-alkali ultra-fine glass wool, which consumes very little energy. Inner layer feed material. When the tank is in a vacuum state, the heat medium such as thermal oil, hot water or steam is heated into the jacket, and the heat is transferred to the wet material through the inner wall of the tank.
2、Because the tank is in a vacuum state, the solvent in various materials (including water) can be rapidly vaporized at a lower temperature under vacuum conditions, and the tank's The rotation makes the material constantly turn up and down, inside and outside, and the material constantly updates the surface in contact with the wall, so as to make full use of the heat conducted by the wall, accelerate the drying speed of the material, improve the drying efficiency, and achieve the purpose of uniform drying.
3、The solvent (water vapor) that evaporates after absorbing heat from the wet material is extracted through the vacuum pump through the vacuum extraction pipe. Halfway through the low temperature condensation system (using tap water or frozen brine) to cool, in order to achieve the purpose of recovery, saving production costs, and improve the working conditions of the vacuum pump, but also reduce the pollution to the environment.
