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Dec 04, 2025
As the demand for high-purity electrolytic nickel continues to grow in industries such as new energy batteries and stainless steel manufacturers are placing greater emphasis on production efficiency and product quality. While process parameters such as current density and electrolyte composition are important, the performance of electrolysis bags is also a key factor affecting electrolysis stability and nickel quality.
Among the various performance indicators of electrolysis bags, water permeability stability is one of the most critical. Permeability not only determines the flow rate of electrolyte through the bags but also directly affects the ability to maintain a stable liquid level difference between different zones of the electrolytic cell. For nickel producers, stable permeability has a significant impact on product quality, operating costs, and overall production efficiency.
When liquid level differences become unstable, electrolysis bags may require frequent replacement, increasing labor costs, electrolyte preparation costs, and production downtime. In cathode bag applications, stable permeability helps maintain the required liquid level difference within each bag, effectively preventing anolyte backflow and reducing the risk of contamination. In anode bag applications, consistent permeability helps maintain the liquid balance of the entire electrolytic cell, preventing excessive liquid loss caused by overly permeable bags and reducing acid concentration fluctuations that may shorten anode plate service life.
In addition to improving process stability, electrolysis bags with stable permeability can help reduce operating costs. Compared with conventional products, low-permeability diaphragm bags with consistent performance can minimize makeup solution requirements, reduce electrolyte circulation and purification time, and lower overall energy consumption.
Bolian's electrolysis bags for non-ferrous metal refining are designed for both sulfide and chloride electrolysis systems. Based on different process requirements, including cathode bag and anode bag, as well as varying catholyte flow rates, Bolian can provide electrolysis bags with optimized permeability levels. This helps customers reduce energy consumption, lower material usage, and improve electrolytic nickel quality.
Although electrolysis bags are considered auxiliary materials in nickel electrolysis, they play a crucial role in maintaining process stability and ensuring product quality. Selecting electrolysis bags with stable permeability and performance can help producers improve nickel quality, reduce operating costs, and achieve more reliable long-term production.
