创新突破！湖南工业大学锂源再生团队研发电池新技术

Core Viewpoint - The innovative bioprotein-mediated technology developed by Hunan University of Technology has achieved significant success in the efficient recovery of precious metals from lithium battery tailings, marking a milestone in the resource utilization of solid waste in the new energy sector [1][3]. Group 1: Technology and Innovation - The bioprotein-mediated gradient recovery system addresses three major industry challenges: difficulty in separating low-grade tailings precious metals, high recovery costs, and potential secondary pollution [1][3]. - The technology has been patented with four national invention patents and is considered a crucial pillar for promoting the circular development of the lithium battery industry [1][5]. - The average content of lithium, cobalt, and nickel in lithium battery tailings is 2.3 kg, 1.8 kg, and 3.5 kg per ton, respectively, which could meet 15% of the global demand for lithium battery raw materials if efficiently recovered [3]. Group 2: Environmental and Economic Impact - The new technology has increased the total recovery rate of precious metals from tailings to 92%, reduced processing costs by 58%, and eliminated harmful gas emissions during the process [3][5]. - The purity of lithium obtained from the tailings reaches battery-grade standards (99.95%), with cobalt and nickel recovery rates improved by 42% and 37% compared to traditional methods [5]. - The carbon emissions during the processing are reduced by 76% compared to traditional pyrometallurgical methods, showcasing a significant environmental benefit [5]. Group 3: Industry Collaboration and Future Prospects - Leading companies in the industry, such as BYD and Bangpu Recycling, have shown interest in collaborating on the industrialization of this technology [5][7]. - The research team is establishing a comprehensive innovation system that integrates microbial screening, protein modification, pilot testing, and industrial application [7]. - The team aims to explore a deep integration path of industry-university-research collaboration to ensure that technological innovations effectively support industrial development [7].