Nickel Hydride Batteries

　　What is the production process of Nickel Hydride Batteries cathode materials?

　　Nickel Hydride Batteries cathode material production process

　　The performance of Nickel Hydride Batteries cathode materials directly affects the performance of lithium-ion batteries, and its cost also directly determines the cost of the battery. There are many industrial production processes for cathode materials, the synthesis route is relatively complex, and the control of temperature, environment, and impurity content is also relatively strict. There are many industrial production processes for cathode materials, the synthesis routes are relatively complex, and the control of temperature, environment, and impurity content is also relatively strict. The cathode materials mainly include lithium cobalt oxide, lithium manganate, lithium iron phosphate, and ternary materials.

　　Calcination technology uses a new microwave drying technology to dry Nickel Hydride Batteries cathode materials, which solves the problems of conventional Nickel Hydride Batteries cathode material drying technology that takes a long time, slows capital turnover, uneven drying, and insufficient drying depth. The specific features are:

　　1. Using microwave drying equipment for Nickel Hydride Batteries cathode materials, it is fast and deep drying can be completed in a few minutes, and the final moisture content can reach more than one thousandth;

　　2. Uniform drying and good drying quality of the product;

　　3. Nickel Hydride Batteries cathode materials are highly efficient, energy-saving, safe and environmentally friendly;

　　General preparation methods of Nickel Hydride Batteries cathode materials

　　1. Solid phase method

　　Generally, lithium salts such as lithium carbonate and cobalt compounds or nickel compounds are ground and mixed, and then the sintering reaction is carried out. The advantage of this method is that the process flow is simple and the raw materials are easily available. It is a method that has been widely researched, developed and produced in the early stages of the development of lithium batteries, and foreign technology is relatively mature. The disadvantages are that the produced cathode material has limited capacitance, poor mixing uniformity of raw materials, and poor performance of the prepared materials. The stability is not good and the quality consistency between batches is poor.

　　2. Complex method

　　The complex method uses an organic complex to first prepare a complex precursor containing lithium ions and cobalt or vanadium ions, and then sinters the preparation. The advantages of this method are molecular-scale mixing, good material uniformity and performance stability, and the capacitance of the cathode material is higher than that of the solid-phase method. It has been tested abroad as an industrial method for lithium batteries, but the technology is not yet mature, and there are currently few reports in China. .

　　3. Sol-gel method

　　The method of preparing ultrafine particles developed in the 1970s is used to prepare cathode materials. This method has the advantages of the complex method, and the capacitance of the prepared electrode materials is greatly improved. It is a technology that is developing rapidly at home and abroad. a way. The disadvantage is that the cost is higher and the technology is still in the development stage.

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