In the production process of lithium battery cathode materials, ultra-fine grinding of lithium iron phosphate requires strict standards for the wear resistance, cleanliness, and dimensional accuracy of equipment components. Many lithium battery powder production enterprises in Dongguan are facing on-site problems such as rapid wear of ceramic liners in sand mills, insufficient compatibility of components, the generation of trace impurities during long-term operation, and unstable purity of batch powders. Frequent replacement of components not only increases material costs but also affects the continuous production rhythm of the production line. Dongguan Zhongli Nano Ceramic Technology Co., Ltd. has completed several customized renovation projects for sand mill ceramic components based on the production conditions of lithium battery powders in the Pearl River Delta region. Through material optimization and precise processing, it has solved the actual production pain points on site.

The project partner for this implementation is a local new energy powder production enterprise in Dongguan, mainly engaged in the processing of lithium iron phosphate cathode materials. The original horizontal sand mill was equipped with ordinary ceramic components, and the equipment operated continuously at high speed for 24 hours. Field tests revealed two core problems: First, the wear resistance of conventional ceramic components is generally poor. After continuous operation, the inner wall is significantly worn, and trace impurities are easily mixed into the powder, affecting the cleanliness of the finished product. Second, the size matching of general components is generally poor. There is slight vibration during equipment operation, and the particle size uniformity fluctuates after long-term operation, making it difficult to maintain stable product yield.

Based on the actual production conditions of the factory, the powder material, and the operating parameters of the equipment, the Zhongli Nano Ceramic Technology team conducted on-site surveys and customized a dedicated renovation plan. They selected high-purity zirconia ceramic materials and customized the processing of the sand mill inner liner, dispersing plate, and nozzle, etc., as a complete set of core components. Relying on mature forming and sintering and precise processing techniques, they strictly controlled the dimensional tolerance of the components to ensure precise fit with the equipment cavity. At the same time, considering the high-load grinding conditions of lithium iron phosphate, they optimized the material ratio to enhance the wear resistance, impact resistance, and corrosion resistance of the components, reducing the risk of impurity shedding from the source.

This on-site case fully demonstrates that the stable operation of lithium battery powder grinding equipment is inseparable from customized ceramic accessories that are suitable for specific working conditions. General-purpose accessories are difficult to meet the high-strength and high-cleanliness requirements of new energy production. Targeted material selection, precise customization, and customized services for matching working conditions can truly solve the production pain points of enterprises.

The project implementation strictly follows the standard process of first conducting sample tests, then mass production, and finally batch replacement. After the customized accessories are put into use for testing, the operating status of the equipment has been significantly improved. The equipment operation jitter has been basically eliminated, the sealing performance and fit of the grinding chamber have been significantly enhanced, the particle size distribution of the powder has become more uniform, and the problem of impurity contamination has been effectively avoided. The cleanliness of the finished products meets the production standards of the lithium battery industry. At the same time, the wear resistance of the ceramic accessories is adapted to the long-term continuous production working conditions, effectively prolonging the replacement cycle of the accessories and reducing the frequency of equipment shutdown maintenance, helping enterprises reduce the cost of consumables replacement and manual operation, and ensuring the stable mass production of the production line.

Dongguan Zhongli Nanometer Ceramic Technology Co., Ltd. has been deeply engaged in the field of customized lithium battery special ceramics. Relying on a complete production system and rich on-site implementation experience, it can provide one-stop services including survey, selection, customization, sample testing, and mass production delivery for different grinding conditions such as lithium iron phosphate, silicon-carbon negative electrodes, and fine chemical powders. It continuously provides supporting services for new energy powder enterprises to maintain stable production and reduce costs.