Application of Jinan Winner laser particle size analyzer in batteries

Take graphite as an example

Among lithium battery materials, the negative electrode material is the key to determining battery performance. Graphite powder is an ideal anode material for lithium batteries. Natural graphite powder is widely used in commercial lithium battery anodes because of its abundant sources and low price. After modification, it has excellent performance and strong market competitiveness. application.

As a highly crystalline graphite material, the particle size of natural graphite powder has a great impact on the initial charge and discharge capacity of lithium batteries. Today, the highest manufacturing level of graphite material particle size in the world is within 3um. However, when the particle size is small, the relative flexural strength will be greatly reduced. First, cracks will occur inside the electrode during production. Second, breakage will occur under high temperature use, which will affect the service life of the graphite. Therefore, large-sized graphite electrodes generally do not use small particles. In summary, how to accurately analyze the particle size distribution of graphite powder is a concern of manufacturers and users. In order to improve particle distribution and control particle size, laser particle size can be detected.

Case

Hebei Lianguan Electrode Co., Ltd. is a professional carbon product manufacturing enterprise integrating scientific research, production and sales, and is a governing unit of the China Carbon Industry Association. The company has successfully developed new products such as "high-strength high-graphite carbon electrode" for ore thermal smelting and "special carbon electrode for ferroalloy smelting".

Carbon electrode is a carbon conductive material made from electric calcined anthracite, petroleum coke, graphite chips, coal pitch, etc. through batching, molding, roasting, and mechanical processing. It is a new type of energy-saving and environmentally friendly material. In the product series, "fine particle special graphite" is specially used for making graphite pipe fittings for metallurgy and chemical industry.

The company uses the Winner2000E wet laser particle size analyzer developed and produced by Jinan Winner Particle Instruments to test graphite particle size. This instrument is extremely cost-effective. It has been tested for more than ten years and has undergone several technical improvements. The results are very mature and the test stability is good. It complies with the demand of the graphite market and is a powerful partner and assistant for graphite-related particle size testing.