How to Improve the Cathode Production Process

Cathode production is predominantly the manufacturing process of cathode materials used in batteries or electrochemical devices. The cathode in the battery is an electrode that accepts electrons, and also another type of terminal which releases electrons at the other side as soon as it's providing energy together with a/anodic material. The battery performance, energy density, life and safety are closely related to cathode materials. The production process of the cathode material is critical to enhance performance and decrease battery cost.

Lithium battery cathode materials

Lithium battery negative electrode materials

1. Raw materials selection optimization

Enhance material purity: Adopting high-purity raw materials in cathode production can obviously reduce the adverse affect of impurities on battery performance and guarantee higher energy density as well as cycling life. To function as intended, lithium salts can benefit from such specialized purification processes that eliminate metallic impurities.

Material innovation (New cathode materials: exploring lithium-rich lithium-ion and high nickel potential increases in energy the choice of cycling stability). These materials are of higher electrochemical quality with an ability to achieve faster charging times and longer lives.

2. Improved mixing processes

High precision dosing: You should have well-controlled and accurate levels of each component part. Use high-precision dosage equipment (i.e., automated weighing systems) to achieve the exact proportions. This will avoid the cost-reducing material waste.

Mixing time and speed can be optimized in cathode production : Control the mixing time and speed to ensure that the material is fully dispersed uniformly, avoid local over-concentration phenomenon due to equipment limitation; thus improve consistency & reliability of a battery.

3. Enhance coating technology

Select appropriate coating method: Different coating methods (e.g., scraping, roller coater or spraying) have different material property adaptation. It is suggested that select the optimal production process through trial and error experiments can realize coating thin and uniform, adhesion good.

Thickness Control: Accurate thickness provides better electrochemical performance and reduces raw materials. Apply online monitoring to observe the thickness of preventative coating across all layers, in real time passing each layer through design parameters.

4. Improve drying efficiency

Regulate drying conditions: According to the characteristics of different materials, adjust the temperature and humidity during drying treatment at any time so that all parts can be rapidly dried and allow performances not affected by uneven dry.

Use advanced drying methods: vacuum-drying, hot air circulation or microwave drying to improve efficiency and reduce cathode production time and energy costs.

5. Improve the pressing process

Control of pressure & Temperature – By pressing under optimized Pressure and temperature parameters the material can be densified down to smallest granules, this will leads to better performance characteristics.

Selection of molds: the use of high-quality mold can not only guarantee the accuracy and precision in molding but also save material, lower cathode production scrap rate.

6. Enhance quality control

Real-time monitoring technology is introduced into the cathode production process to detect and correct problems in time, which can ensure the stability of both products quality as well as production process.

Testing & dimension analysis: Conduct standardized quality inspection including physical and chemical properties testing, examine the correlation of material performance in production process to a end User tool.

With the advancement of a series of improvement programs mentioned above, it is able to advance the cathode production efficiency and quality performance in various links, thus offering importantly strong help for expanding battery industry chain.