About this Research Topic
Rapid growth in the demand for lithium-ion (Li-ion) batteries as mobile energy resources has resulted in an increasingly large amount of spent Li-ion batteries. These spent Li-ion batteries contain high levels of heavy metals and organic chemicals, which present a serious threat to the environment and human health. However, spent Li-ion batteries contain valuable metals such as lithium, cobalt, and nickel, giving them a high economic value. From the view of environmental protection and resource savings, recycling processes for spent Li-ion batteries need to be developed urgently.
Although numerous processes for recycling spent Li-ion batteries, such as pyrometallurgical or hydrometallurgical methods or a combination of the two, have been established, traditional recycling methods fall short compared with newly-developed shorter processes such as selective extraction, regeneration, and repairing processes in terms of their economic and ecological benefits. In addition, there is no commercial technology to achieve the recycling of mixed waste. To develop new recycling methods that are cost-saving and environmental-friendly, it is essential to further explore the mechanisms of physical and chemical changes in spent Li-ion batteries during the recycling process. After understanding the physical and chemical changes in recycling spent Li-ion batteries, complete and sustainable recycling processes for spent Li-ion batteries need to be explored and established.
This Research Topic is dedicated to all aspects of the science, technology and applications for recycling spent Li-ion batteries. We welcome Original Research and Review articles about new processes and advanced technologies to recycle spent Li-ion batteries, as well as the physical and chemical changes that spent Li-ion batteries undergo during recycle process.
Themes of interest include:
• Hydro-, bio- and pyro-metallurgical processes to recover high-value added metals from spent Li-ion batteries
• Recycling of anode and electrolyte
• Physical and chemical changes during recycling process
• Mechanical separation and thermal treatment process to recover valuable metals
Keywords: Spent Lithium-ion Battery, Recycling, Element separating, Electrochemistry, Metallurgical process
Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.