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direct regeneration of Spent Lithium-Ion Battery Cathodes:From Theoretical Study to Production Practice

Nano-Micro Letters 2024年第10期16卷 304-336页

作者： Meiting Huang Mei Wang Liming Yang Zhihao Wang Haoxuan Yu Kechun Chen Fei Han Liang Chen Chenxi Xu Lihua Wang Penghui Shao Xubiao Luo National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization Nanchang Hangkong UniversityNanchang 330063People's Republic of China Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials School of Chemistry and Chemical EngineeringHunan Institute of Science and TechnologyYueyang 414006People's Republic of China College of Materials Science and Engineering Central South University of Forestry and TechnologyChangsha 410004People's Republic of China School of Life Science Jinggangshan UniversityJi'an 343009People's Republic of China

direct regeneration method has been widely concerned by researchers in the field of battery recycling because of its advantages of in situ regeneration,short process and less pollutant *** this review,we firstly analyze the primary causes for the failure of three representative battery cathodes(lithium iron phosphate,layered lithium transition metal oxide and lithium cobalt oxide),targeting at illustrating their underlying regeneration mecha-nism and *** stripping of material from the collector to obtain pure cathode material has become a first challenge in recycling,for which we report several pretreatment methods currently available for subsequent regeneration *** review and discuss emphatically the research progress of five direct regeneration methods,including solid-state sintering,hydrothermal,eutectic molten salt,electrochemical and chemical lithiation ***,the application of direct regeneration technology in production practice is introduced,the problems exposed at the early stage of the industrialization of direct regeneration technol-ogy are revealed,and the prospect of future large-scale commercial production is *** is hoped that this review will give readers a comprehensive and basic understanding of direct regeneration methods for used lithium-ion batteries and promote the industrial application of direct regeneration technology.

关键词： Spent LIBs Failure reasons Cathode recycling direct regeneration Production practice

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direct regeneration of LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2) cathode material from spent lithium-ion batteries

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Chinese Journal of Chemical Engineering 2021年第12期34卷 278-286页

作者： Xiaodong Tang Qiankun Guo Miaomiao Zhou Shengwen Zhong Faculty of Materials Melallurgy and Chemistry Jiangxi University of Science and TechnologyGanzhou 341000China

At present,metal ions from spent lithium-ion batteries are mostly recovered by the acid leaching procedure,which unavoidably introduces potential pollutants to the ***,it is necessary to develop more direct and effective green recycling *** this research,a method for the direct regeneration of anode materials is reported,which includes the particles size reduction of recovered raw materials by jet milling and ball milling,followed by calcination at high temperature after lithium *** regenerated LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2) single-crystal cathode material possessed a relatively ideal layered structure and a complete surface morphology when the lithium content was n(Ni+Co+Mn):n(Li)=1:1.10 at a sintering temperature of 920 0 C,and a sintering time of 12 *** first discharge specific capacity was 154.87 mA·h·g^(-1) between 2.75 V and 4.2 V,with a capacity retention rate of 90% after 100 cycles.

关键词： Spent lithium-ion batteries LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2)cathode material direct regeneration

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Micropropagation of Kaempferia angustifolia Roscoe via direct regeneration

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American Journal of Plant Sciences 2022年第6期13卷 734-743页

作者： Zuraida Ab Rahman Ayu Nazreena Othman Mohd Norfaizal Ghazalli Nur Auni Syazalien Adlan Biotechnology & Nanotechnology Research Centre MARDI HQ Persiaran MARDI-UPM Serdang Selangor Malaysia Agrobiodiversity & Environment Research Center MARDI HQ Persiaran MARDI-UPM Serdang Selangor Malaysia Gambang Campus Universiti Malaysia Pahang Pahang Malaysia

This study has established an efficient and reproducible protocol to micropropagation Kaempferia angustifolia Roscoe via direct regeneration. The use of young shoots as explants showed the best results compared to rhizome shoots, where the young shoots showed a low percentage of contamination of 10% - 30% (agar 6 g/L) and 45% - 55% (agar 3 g/L), respectively, compared to the use of rhizome shoots, where the contamination rate exceeded 80%. For shoot initiation, the combination of BAP (6 Benzylaminopurine) and NAA (1-Naphthaleneacetic acid) showed higher results for the percentage of initial shoots and number of micro shoots/explants compared to BAP with Kin (Kinetin). The highest concentration of BAP (5 mg/L) combined with the lowest concentration of NAA (0.5 mg/L) resulted in 90% of initial shoots and a number of shoots/explants of 5.8. The highest number of shoots for micropropagation was in treatment with 30 g/L sucrose that was segmented with 3 mg/L BAP + 0.5 mg/L NAA. For the number of roots, the highest number of roots was 11.8 recorded at sucrose (45) with only BAP (1 mg/L) used as the plant growth regulator, while the longest length of roots was 7 - 8 cm, recorded both at sucrose with the combination of BAP and NAA.

关键词： BAP NAA Micropropagation Kaempferia angustifolia direct regeneration

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Progress,challenges,and prospects of spent lithium-ion batteries recycling:A review

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Journal of Energy Chemistry 2024年第2期89卷 144-171,I0005页

作者： Pengwei Li Shaohua Luo Lin Zhang Qiuyue Liu Yikai Wang Yicheng Lin Can Xu Jia Guo Peam Cheali Xiaoning Xia School of Materials Science and Engineering Northeastern UniversityShenyang 110819LiaoningChina School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao 066004HebeiChina Department of Chemistry and Bioscience Aalborg UniversityAalborg 9220Denmark Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province Qinhuangdao 066004HebeiChina Department of Materials and Production Aalborg UniversityAalborg 9220Denmark School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina

The recycling and reutilization of spent lithium-ion batteries(LIBs)have become an important measure to alleviate problems like resource scarcity and environmental *** some progress has been made,battery recycling technology still faces challenges in terms of efficiency,effectiveness and environmental *** review aims to systematically review and analyze the current status of spent LIB recycling,and conduct a detailed comparison and evaluation of different recycling *** addition,this review introduces emerging recycling techniques,including deep eutectic solvents,molten salt roasting,and direct regeneration,with the intent of enhancing recycling efficiency and diminishing environmental ***,to increase the added value of recycled materials,this review proposes the concept of upgrading recycled materials into high value-added functional materials,such as catalysts,adsorbents,and *** life cycle assessment,the paper also explores the economic and environmental impacts of current battery recycling and highlights the importance that future recycling technologies should achieve a balance between recycling efficiency,economics and environmental ***,this review outlines the opportunities and challenges of recycling key materials for next-generation batteries,and proposes relevant policy recommendations to promote the green and sustainable development of batteries,circular economy,and ecological civilization.

关键词： Spent li-ion batteries Recycle direct regeneration High-value conversion Functional materials

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