In today’s society, with the rapid development of science and technology, batteries are used increasingly widely—from daily electronic devices to electric vehicles, they have become an indispensable energy carrier. However, the large-scale generation of waste batteries also brings severe environmental challenges and resource waste issues. How to treat waste batteries efficiently and environmentally has become a focus of social attention. Among numerous treatment reagents, Sodium Persulfate demonstrates remarkable advantages in the field of waste battery treatment due to its unique chemical properties.
Ⅰ. Mild Reaction, Reducing Equipment Wear
Traditional waste battery treatment often uses highly corrosive reagents such as strong acids and alkalis. These reagents react violently with battery materials, causing severe corrosion to treatment equipment. With long-term use, key components of the equipment are prone to damage, which not only increases the frequency of equipment maintenance but also may lead to premature scrapping of the equipment, significantly raising treatment costs.
After appropriate activation (e.g., heating or adding catalysts), Sodium Persulfate can efficiently decompose battery materials through strong oxidizing free radicals under weakly acidic conditions and relatively low temperatures. This controllable reaction condition effectively reduces the risk of corrosion to treatment equipment. The Sodium Persulfate produced by Fujian ZhanHua Chemical, with its excellent purity and stability, can better ensure the efficient progress of the reaction under mild reaction conditions and minimize equipment wear.
Ⅱ. Efficient Leaching, Enhancing Resource Recovery Efficiency
Waste batteries contain a variety of valuable metal resources such as lithium, nickel, and cobalt. Effective recovery can not only alleviate the pressure of resource shortage but also bring economic benefits. In waste battery treatment, Sodium Persulfate exhibits excellent leaching ability for these valuable metals. In specific treatment processes, Sodium Persulfate often acts synergistically with dilute acids (e.g., sulfuric acid) to help destroy the crystal structure of cathode materials, oxidize metals such as cobalt and manganese, and significantly enhance the leaching effect of acids on metals like lithium, nickel, and cobalt—creating favorable conditions for subsequent metal extraction and purification. Compared with some traditional leaching reagents, Sodium Persulfate can achieve a higher proportion of metal recovery in a shorter time, greatly improving resource recovery efficiency and enabling more efficient utilization of limited resources.
Ⅲ. Environmentally Friendly, Reducing Secondary Pollution
Environmental protection is the core principle of waste battery treatment. In the past, traditional treatment methods were prone to causing secondary pollution: for instance, pyrometallurgy emits toxic sulfur dioxide waste gas, traditional acid leaching generates high-concentration acidic wastewater containing heavy metals, and toxic heavy metals remain in waste residues—making subsequent treatment difficult and costly. However, Sodium Persulfate has obvious environmentally friendly characteristics in waste battery treatment. On one hand, no harmful gases such as sulfur dioxide or nitrogen oxides are emitted during the reaction process, reducing air pollution at the source; on the other hand, its main by-products after the reaction are sulfates. Although sulfates increase the salt content of wastewater, they can be removed by precipitation through adding lime. The overall environmental load is much lower than that of traditional methods, which greatly reduces the risk of secondary pollution and provides strong support for the green treatment of waste batteries.
With its significant advantages such as mild reaction, efficient leaching, and environmental friendliness, Sodium Persulfate has great potential in the field of waste battery treatment. As the world’s largest-scale persulfate manufacturer, Fujian ZhanHua Chemical has an annual output of 50,000 tons of Sodium Persulfate, and the annual output will increase to 90,000 tons after the commissioning of the third-phase project. Relying on technological accumulation and large-scale production, the company performs excellently in terms of production capacity, product quality, and stability. The Sodium Persulfate it produces strictly complies with international quality standards, with strict control throughout the entire process from raw material selection and process control to packaging and transportation, providing high-standard and highly reliable raw material guarantees for waste battery recycling and treatment.