In the context of increasingly strained global resources and rising environmental awareness, the recycling and disposal of spent lead-acid batteries have become a focus of attention. Among them, lead extracted through crushing and recycling processes not only undertakes an important mission of resource circulation but also demonstrates irreplaceable roles and values in various fields such as economy and environmental protection. Moreover, the price advantage of recycled lead is a key factor for its important position in the market.

From the perspective of resource recycling, recycled lead is a crucial measure to alleviate the shortage of lead ore resources. As an important metal resource, lead has limited natural reserves, and the mining process causes great damage to the ecological environment. However, spent lead-acid batteries have a very high lead content, and through professional crushing and recycling technologies, this lead can be efficiently extracted and reused. Statistics show that recycling 1 ton of waste lead can save about 8 tons of lead ore resources, greatly reducing the dependence on primary lead ore and realizing the sustainable circulation of resources. This "turning waste into treasure" model allows lead resources to circulate continuously in a closed loop, extending their life cycle and opening up an important path for the efficient utilization of resources.

At the economic level, the price advantage of recycled lead is particularly significant, making it highly competitive in the market. The production of primary lead involves multiple complex links such as mining, beneficiation, and smelting, which not only has a long process flow but also consumes a lot of energy and has high production costs. Its market price is often affected by multiple factors such as mineral mining costs, transportation expenses, and policy regulations, with large fluctuations and an overall high level. In contrast, the production process of recycled lead is more simplified, with energy consumption being only about 30% of that of primary lead, resulting in a significant reduction in production costs. This is directly reflected in the price - the market price of recycled lead is usually 10%-20% lower than that of primary lead. Taking the recent market situation as an example, the price of primary lead is about 15,000 yuan/ton, while the price of recycled lead can be as low as 12,000 - 13,500 yuan/ton. For bulk lead - using enterprises such as lead-acid battery manufacturers and cable manufacturers, the use of recycled lead can significantly reduce raw material costs and improve product profit margins.

At the same time, recycled lead can reach a high level of purity, which can meet the production needs of various products such as lead-acid batteries, cable sheaths, and lead alloys. This endows it with more practical value in addition to the price advantage. With the wide application of lead-acid batteries in fields such as automobiles, electric vehicles, and energy storage, the demand for lead continues to grow. Relying on its price advantage, recycled lead has become an important part of market supply, bringing considerable economic benefits to related industries. In addition, the price of recycled lead is relatively stable and less affected by fluctuations in mineral resources, which provides more reliable guarantees for cost control of downstream enterprises.

The environmental protection value of recycled lead is an aspect that cannot be ignored. If spent lead-acid batteries are not handled properly, the lead in them will enter the environment through soil, water sources, etc., causing serious harm to the ecosystem and human health. Lead is a toxic heavy metal. After being ingested by the human body, it will damage the nervous system, hematopoietic system, and digestive system, especially having a great impact on children's growth and development. However, through the crushing and recycling process, lead in spent lead-acid batteries can be safely extracted, avoiding lead leakage pollution. In addition, during the production process of recycled lead, the emission of pollutants is much lower than that of primary lead production, reducing the emission of harmful substances such as sulfur dioxide and lead dust, lowering the damage to the environment, and contributing to the realization of green development.

Recycled lead also plays a positive role in promoting the upgrading of related industries. In order to improve the efficiency and quality of lead recycling, enterprises continue to research, develop and introduce advanced crushing, sorting, and smelting technologies, promoting the innovation and progress of environmental protection technologies. At the same time, the development of the spent lead-acid battery recycling industry has driven the rise of related supporting industries such as logistics, warehousing, and testing, forming a complete industrial chain, creating more employment opportunities, and promoting the development of regional economies.

To sum up, lead recovered from the crushing of spent lead-acid batteries has important roles and values in resource recycling, economic development, environmental protection, and industrial upgrading, and its prominent price advantage has injected strong vitality into the market. Vigorously developing the lead recycling industry is not only an inevitable choice to cope with resource shortages and environmental problems but also an important measure to realize sustainable development. We should further improve the recycling system, strengthen technological innovation, and increase the recycling rate of lead, so as to truly "turn waste into treasure" for spent lead-acid batteries and lay a solid foundation for building a green, low-carbon, and circular economic system.