Chongqing Institute of Science and Technology made breakthroughs in the research of new lithium battery high-efficiency energy-saving preparation technology
Recently, the Chongqing Research Institute of Science and Technology relied on the scientific and technological research project "Research and Development of High-efficiency and Energy-saving Preparation Technology for Cathode Materials of New Lithium-ion Power Batteries", which has developed a high-efficiency and energy-saving preparation technology for the key materials of lithium-ion batteries. The development of new materials and energy saving and environmental protection industries in Chongqing.
Lithium ion battery is a new generation of green high-energy battery with excellent performance, which has been widely used in 3C products, new energy vehicles and other fields. The cathode material occupies a core position in the lithium battery, its cost accounts for more than 40% of the battery, and directly affects various performance indicators of the lithium battery. Due to the complex preparation process and high energy consumption of lithium battery cathode materials, scientists and technicians have innovated the wet solid phase coordination technology by improving the cathode material precursor mixing process, which reduces the synthesis temperature on the basis of ensuring uniform mixing. At 200 ℃, the firing time is shortened by 2h, the stability is high, the material synthesis efficiency is improved by 25%, and the battery cost is greatly reduced. The carbon-coated lithium vanadium phosphate cathode material prepared by this technology has a reversible discharge capacity of about 150 mAh / g after a 1000-week charge-discharge cycle test at a rate of 0.5C in an electrochemical window of 3.2-4.8V. Reversible capacity retention rate reached 86.7%. At present, the internationally renowned journal Electrochimica Acta has made a special report and has obtained a national invention patent.
The technology has now formed a demonstration line of cathode materials with an annual output of 150 kg, which will bring the dawn of technological innovation and energy saving and consumption reduction for the city's electronics, electric vehicle and other production enterprises. After entering the industrialization, based on the annual cost savings of 1 million yuan for each enterprise, the social and economic benefits will reach hundreds of millions of yuan in the next few years.
The smoke eliminator is a purification device specially designed for industrial smoke and light particles. It is light and flexible, easy to operate, and easy to maintain. The main points are as follows:
1. During the initial operation, pay attention to whether the fan rotates forward (such as reverse rotation, the air volume is small, and the power supply wiring needs to be changed).
2. During maintenance, the power supply must be cut off first, and the maintenance should be performed after confirming that it is not running. The unit should not be opened at will when it is working.
3. Regularly check whether the inspection door, the ash outlet door and the air pipe connection system are well sealed to avoid leakage and reduce the dust collection effect.
4. According to actual needs, remove dust regularly.
5. The filter box should be cleaned regularly according to the actual situation. Generally, it needs to be cleaned once for four consecutive months. When cleaning or replacing, when reinstalling, pay attention to whether the tight pressure plate on the filter component and the filter box are tightly sealed to prevent leakage. Will greatly affect the dust removal effect.
6. Clean the dust and other impurities in the body and pipeline regularly to prevent corrosion.
SMOKE PURIFY MACHINE
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