Microwave Drying Equipment for Battery Cathode Materials

Battery Cathode Material Microwave Drying Equipment, Microwave Drying for Energy Saving and Efficiency Improvement

I. Introduction to Microwave Drying Technology:

Drying of lithium-ion battery cathode materials: Utilizing microwave belt drying kilns and microwave vacuum dryers along with microwave drying processes, providing microwave drying solutions for cathode materials such as lithium cobalt oxide, lithium manganese oxide, ternary materials, and lithium iron phosphate. Compared to conventional electric heating drying methods, it significantly reduces drying temperature, avoids metal contamination of materials, ensures rapid and uniform drying, increases production efficiency by more than ten times, and saves over 50% energy.

Comparison Table of Ternary Material Drying Application by a Lithium Battery Material Manufacturer in Hunan

Characteristics of Microwave Heating for Drying in the Power Battery Cathode Material Industry:

A. Fast and efficient: traditional drying time is 4-6 hours, microwave drying takes 0.5-1 hour;

B. Uniform heating, excellent product performance, can increase the specific surface area of the product and improve product performance;

C. Microwave heating equipment occupies a small area, with low comprehensive investment;

D. Energy-saving and efficient;

E. Clean and environmentally friendly, easy to control.

II. Technical Principles and Features of Microwave Industrial Equipment:

Lithium battery material microwave drying equipment heats up by the material itself absorbing microwave thermal energy. Because microwave is an extremely high-frequency electromagnetic wave, when an object is in a microwave field, the polar and non-polar molecules within it become polarized and turn into dipole molecules. They align according to the electric field direction. Since this electric field is an alternating field, the dipoles rotate and vibrate with the changes in the electric field. For example, at a frequency of 2450 MHz, they rotate and vibrate 2.45 billion times per second, producing an effect similar to friction between molecules, thereby absorbing the energy of the electric field and generating heat, making the object itself the heat source. Microwave heating is a non-contact internal heating method, so microwave heating causes the entire material to heat up from within. In contrast, conventional processes use coal, electricity, oil, or gas kilns, which have high energy consumption or produce pollution and exhaust emissions. Their heating methods involve radiation, convection, and other heat conduction processes from the outside in, resulting in high energy consumption, low energy efficiency, and long heating times.

Microwave offers energy savings (higher conversion efficiency to thermal energy, saving over 30% energy compared to traditional heating methods), environmental friendliness (no external emissions, effectively reducing harmful substances), cleanliness (materials heat by absorbing microwaves themselves, no contact pollution, improving product quality and yield), and high thermal efficiency (fast heating speed, high energy utilization). The microwave industrial equipment manufactured by Zhongsheng can operate at temperatures up to 1600°C, with kiln temperature stability of ±5°C, and can be integrated with high levels of automation and intelligent operation, improving the production environment.

III. Introduction to the Features of Hunan Zhongsheng's Microwave High-Temperature Equipment:

1) The equipment uses microwave antennas for large-area energy feeding to avoid localized overheating caused by concentrated microwaves; the microwave heating cavity employs a wave homogenizing device to ensure uniform temperature of the heated materials.

2) The equipment is equipped with 1.5KW industrial-grade microwave sources, with continuously adjustable power (0.1~1.48kW), ensuring uniform, adjustable, and controllable temperature in the microwave cavity, meeting different process requirements and enabling 24-hour continuous production.

3) Wear parts (magnetrons) can be replaced online without stopping the machine.

4) The equipment is developed from proprietary intellectual property, and the company currently holds over 20 invention patents and more than 40 utility model patents.

5) The company's microwave high-temperature heating kiln technology and equipment have been selected for the National Development and Reform Commission's Key Energy-Saving Technology Promotion Catalog.

6) The company's equipment features unique leakage prevention technology, automatically alarming and shutting down when microwave leakage exceeds standards; microwave leakage can be controlled to no more than 1mW/cm² (the standard requires no more than 5mW/cm²), greatly improving safety.

IV. Services: Technical Exchange / Small-Scale Sampling / Visits / Equipment Ordering

Consultation on Microwave Drying for Power Battery Cathode Materials: Manager Xu 156 7439 3491

Factory Address: Tonghai Road, Economic Development Zone, Yueyang City, Hunan Province