利用废镍催化剂合成 NMC622 阴极材料的固态法与共沉淀法比较研究

IF 0.9 Q3 ENGINEERING, MULTIDISCIPLINARY Journal of Engineering and Technological Sciences Pub Date : 2023-12-22 DOI:10.5614/j.eng.technol.sci.2023.55.5.4
E. Dyartanti, T. Paramitha, A. Jumari, Agus Purwanto, A. Nur, A. W. Budiman, S. S. Nisa
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引用次数: 0

摘要

镍是锂离子电池(LIB)的主要原材料,也是目前需求量最大的金属。对镍需求的不断增长和当前的环境问题凸显了回收废金属以回收其价值的重要性。同时,废催化剂也是金属价值较高的重要二次来源。在这种情况下,采用酸浸法从废催化剂中回收镍。本研究旨在从废催化剂中合成镍锰钴锂氧化物 622(NMC622)。为确定最佳方法,对固态法和共沉淀法进行了比较分析。通过分析方法,即 XRD、FTIR、SEM-EDX 和电化学性能测试,对拟用作阴极材料的回收废镍催化剂进行了检测。XRD、傅立叶变换红外光谱和 SEM-EDX 测试结果相似,与之前的报告一致。不过,在电化学测试中,共沉淀法的比容量比固态法高两倍。共沉淀法制备的 NMC622(NMC622-CP)在 0.1C 下的比放电容量为 132.82 mAh.g-1,而在 0.5C 下循环 50 次的容量保持率为 70%。
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A Comparative Study of Solid-State and Co-precipitation Methods for Synthesis of NMC622 Cathode Material from Spent Nickel Catalyst
Nickel, the main raw material for lithium-ion batteries (LIB), is currently the most in-demand metal. The rising need for nickel and current environmental concerns have underscored the importance of recycling waste metal to recover its value. Meanwhile, a significant secondary source with a high metal value is spent catalyst. In this context, the acid leaching method was used to recover nickel from spent catalyst. This study aimed to synthesize Lithium Nickel Manganese Cobalt Oxide 622 (NMC622) from spent catalyst. To determine the optimal method, a comparative analysis was conducted between solid-state and co-precipitation methods. Recycled spent nickel catalyst to be used for cathode material was examined by analytical methods, i.e., XRD, FTIR, SEM-EDX, and electrochemical performance testing. The XRD, FTIR, and SEM-EDX tests produced similar outcomes, consistent with previous reports. However, in the electrochemical test, the co-precipitation method showed a specific capacity two times higher than the solid-state method. The NMC622 from the co-precipitation method (NMC622-CP) yielded a specific discharge capacity of 132.82 mAh.g-1 at 0.1C, while the retention capacity was 70% for 50 cycles at 0.5C.
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来源期刊
Journal of Engineering and Technological Sciences
Journal of Engineering and Technological Sciences ENGINEERING, MULTIDISCIPLINARY-
CiteScore
2.30
自引率
11.10%
发文量
77
审稿时长
24 weeks
期刊介绍: Journal of Engineering and Technological Sciences welcomes full research articles in the area of Engineering Sciences from the following subject areas: Aerospace Engineering, Biotechnology, Chemical Engineering, Civil Engineering, Electrical Engineering, Engineering Physics, Environmental Engineering, Industrial Engineering, Information Engineering, Mechanical Engineering, Material Science and Engineering, Manufacturing Processes, Microelectronics, Mining Engineering, Petroleum Engineering, and other application of physical, biological, chemical and mathematical sciences in engineering. Authors are invited to submit articles that have not been published previously and are not under consideration elsewhere.
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