{"title":"基于优先选择性提取锂战略的废锂离子电池闭环回收技术","authors":"","doi":"10.1016/j.seppur.2024.128953","DOIUrl":null,"url":null,"abstract":"<div><p>From the perspective of sustainable energy utilization and green economic development, efficient and closed-loop recovery of spent lithium-ion batteries (LIBs) is imperative. This work has developed a closed-loop recovery process for spent LIBs based on preferentially selective extraction of lithium. After molten salt assisted roasting, the efficiency for preferential extraction of Li<sup>+</sup> could be high up to 99.3 % after optimization of selectivity. Dilute sulfuric acid alone facilitated the leaching efficiency of valuable metals over 98 %, eliminating the need for reductants. Regeneration of residue into graphite and recovery of NaCl mixed powder could avoid the wastage of residual metals. Compared with the conventional process, this work shows a high recovery efficiency and closed-loop extent, with a profit of $6,820 per ton of recovered spent LIBs. This work provides a more environmentally friendly recovery strategy with higher economic profits and environmental impacts, thereby enhancing the potential for industrial applications.</p></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":null,"pages":null},"PeriodicalIF":8.1000,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Closed-Loop recovery of spent lithium-ion batteries based on preferentially selective extraction of lithium strategy\",\"authors\":\"\",\"doi\":\"10.1016/j.seppur.2024.128953\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>From the perspective of sustainable energy utilization and green economic development, efficient and closed-loop recovery of spent lithium-ion batteries (LIBs) is imperative. This work has developed a closed-loop recovery process for spent LIBs based on preferentially selective extraction of lithium. After molten salt assisted roasting, the efficiency for preferential extraction of Li<sup>+</sup> could be high up to 99.3 % after optimization of selectivity. Dilute sulfuric acid alone facilitated the leaching efficiency of valuable metals over 98 %, eliminating the need for reductants. Regeneration of residue into graphite and recovery of NaCl mixed powder could avoid the wastage of residual metals. Compared with the conventional process, this work shows a high recovery efficiency and closed-loop extent, with a profit of $6,820 per ton of recovered spent LIBs. This work provides a more environmentally friendly recovery strategy with higher economic profits and environmental impacts, thereby enhancing the potential for industrial applications.</p></div>\",\"PeriodicalId\":427,\"journal\":{\"name\":\"Separation and Purification Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.1000,\"publicationDate\":\"2024-07-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Separation and Purification Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1383586624026923\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Separation and Purification Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1383586624026923","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Closed-Loop recovery of spent lithium-ion batteries based on preferentially selective extraction of lithium strategy
From the perspective of sustainable energy utilization and green economic development, efficient and closed-loop recovery of spent lithium-ion batteries (LIBs) is imperative. This work has developed a closed-loop recovery process for spent LIBs based on preferentially selective extraction of lithium. After molten salt assisted roasting, the efficiency for preferential extraction of Li+ could be high up to 99.3 % after optimization of selectivity. Dilute sulfuric acid alone facilitated the leaching efficiency of valuable metals over 98 %, eliminating the need for reductants. Regeneration of residue into graphite and recovery of NaCl mixed powder could avoid the wastage of residual metals. Compared with the conventional process, this work shows a high recovery efficiency and closed-loop extent, with a profit of $6,820 per ton of recovered spent LIBs. This work provides a more environmentally friendly recovery strategy with higher economic profits and environmental impacts, thereby enhancing the potential for industrial applications.
期刊介绍:
Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.