KINETIC MECHANISM OF LEACHING LITHIUM COBALT OXIDES USING TARTARIC ACID
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摘要: 提出了一种绿色回收废旧钴酸锂电池正极活性物质的方法。采用酒石酸为浸出剂和还原剂,湿法回收废旧钴酸锂电池中的钴和锂。结果表明:钴酸锂与酒石酸摩尔比为1∶4,反应固液比为15 g/L,反应温度为90℃,反应时间为5 h时,金属钴和锂的浸出率分别为92.95%、91.86%;动力学分析显示,Co、Li浸出反应利用经典模型拟合效果最佳,其表观活化能分别为55.20,63.65 kJ/mol,浸出过程属于吸热反应和化学反应控制。该工艺可实现废旧钴酸锂正极活性物质的高效绿色回收,为其他废旧锂离子电池的回收提供理论基础。Abstract: This research proposed a green method for recovering positive active substances from spent lithium cobalt oxide batteries, used tartaric acid as the leaching agent and reducing agent to recover cobalt and lithium. The results showed that the leaching rates of cobalt and lithium were 92.95% and 91.86% respectively, when the molar ratio of lithium cobalt oxide to tartaric acid was 1∶4, the solid-liquid ratio was 15 g/L, the reaction temperature was 90 ℃ and the reaction time was 5 h. Kinetic analysis showed that the leaching reactions of Co and Li could be fitted best by the classical model. And their apparent activation energies were 55.20 kJ/mol and 63.65 kJ/mol respectively, which belonged to endothermic reaction and chemical reaction control. This process can achieve the efficient and green way by recovering waste lithium cobalt oxide cathode materials, and provide a theoretical basis for the recovery of other waste lithium-ion batteries.
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Key words:
- waste lithium cobalt batteries /
- tartaric acid /
- leaching /
- recovering /
- cobalt /
- lithium
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[1] FAN E S,LI L,WANG Z P,et al.Sustainable recycling technology for Li-ion batteries and beyond:challenges and future prospects[J].Chemical Reviews,2020,120(14):7020-7063. [2] SIEBER T,DUCKE J,RIETIG A,et al.Recovery of Li(Ni0.33Mn0.33Co0.33)O2 from lithium-ion battery cathodes:aspects of degradation[J].Nanomaterials,2019,9(2):246. [3] LV W G,WANG Z H,CAO H B,et al.A critical review and analysis on the recycling of spent lithium-ion batteries[J].ACS Sustainable Chemistry & Engineering,2018,6(2):1504-1521. [4] WINSLOW K M,LAUX S J,TOWNSEND T G,et al.A review on the growing concern and potential management strategies of waste lithium-ion batteries[J].Resources,Conservation and Recycling,2018,129:263-277. [5] HU Y C,YU Y J,HUANG K,et al.Development tendency and future response about the recycling methods of spent lithium-ion batteries based on bibliometrics analysis[J].Journal of Energy Storage,2020,27:101111. [6] LV W G,WANG Z H,CAO H B,et al.A sustainable process for metal recycling from spent lithium-ion batteries using ammonium chloride[J].Waste Management,2018,79:545-553. [7] CHEN X P,GUO C X,MA H R,et al.Organic reductants based leaching:a sustainable process for the recovery of valuable metals from spent lithium ion batteries[J].Waste Management,2018,75:459-468. [8] GUO Y,LI F,ZHU H C,et al.Leaching lithium from the anode electrode materials of spent lithium-ion batteries by hydrochloric acid (HCl)[J].Waste Management,2016,51:227-233. [9] PENG C,LIU F P,WANG Z L,et al.Selective extraction of lithium (Li) and preparation of battery grade lithium carbonate (Li2CO3) from spent Li-ion batteries in nitrate system[J].Journal of Power Sources,2019,415(Mar.1):179-188. [10] ZHAN X H,CAO H B,XIE Y B,et al.A closed-loop process for recycling LiNi1/3Co1/3Mn1/3O2 from the cathode scraps of lithium-ion batteries:process optimization and kinetics analysis[J].Separation and Purification Technology,2015,150:186-195. [11] LI L,BIAN Y F,ZHANG X X,et al.Economical recycling process for spent lithium-ion batteries and macro-and micro-scale mechanistic study[J].Journal of Power Sources,2018,377:70-79. [12] NAYAKA G P,ZHANG Y J,DONG P,et al.Effective and environmentally friendly recycling process designed for LiCoO2 cathode powders of spent Li-ion batteries using mixture of mild organic acids[J].Waste Management,2018,78:51-57. [13] GAO W,F ZHANG X H,ZHENG X H,et al.Lithium carbonate recovery from cathode scrap of spent lithium-ion battery:a closed-loop process[J].Environmental Science & Technology,2017,51(3):1662-1669. [14] HE L P,SUN S Y,SONG X F,et al.Leaching process for recovering valuable metals from the LiNi1/3Co1/3Mn1/3O2 cathode of lithium-ion batteries[J].Waste Management,2017,64:171-181. [15] MESHRAM P,PANDEY B D,MANKHAND T R,et al.Hydrometallurgical processing of spent lithium ion batteries (LIBs) in the presence of a reducing agent with emphasis on kinetics of leaching[J].Chemical Engineering Journal,2015,281:418-427. [16] NATARAJAN S,BORICHA A B,BAJAJ H C,et al.Recovery of value-added products from cathode and anode material of spent lithium-ion batteries[J].Waste Management,2018,77:455-465. [17] ZHENG X H,GAO W F,ZHANG X H,et al.Spent lithium-ion battery recycling-Reductive ammonia leaching of metals from cathode scrap by sodium sulphite[J].Waste Management,2017,60:680-688. [18] MENG F,LIU Q C,KIM R,et al.Selective recovery of valuable metals from industrial waste lithium-ion batteries using citric acid under reductive conditions:leaching optimization and kinetic analysis[J].Hydrometallurgy,2020,191:105160. [19] LI L,ZHANG X X,LI M,et al.The recycling of spent lithium-ion batteries:a review of current processes and technologies[J].Electrochemical Energy Reviews,2018,1(4):461-482. [20] MESHRAM P,PANDEY B D,MANKHAND T R.Recovery of valuable metals from cathodic active material of spent lithium ion batteries:leaching and kinetic aspects[J].Waste Management,2015,45:306-313. [21] KIM E,KIM M S,LEE J,et al.Leaching kinetics of copper from waste printed circuit boards by electro-generated chlorine in HCl solution[J].Hydrometallurgy,2011,107(3/4):124-132. [22] CHEN X P,MA H R,LUO C B,et al.Recovery of valuable metals from waste cathode materials of spent lithium-ion batteries using mild phosphoric acid[J].Journal of Hazardous Materials,2017,326:77-86. [23] BEHERA S S,PARHI P K.Leaching kinetics study of neodymium from the scrap magnet using acetic acid[J].Separation and Purification Technology,2016,160:59-66. [24] LIU Z,YIN Z L,XIONG S F,et al.Leaching and kinetic modeling of calcareous bornite in ammonia ammonium sulfate solution with sodium persulfate[J].Hydrometallurgy,2014:86-90. [25] GAO W F,SONG J L,CAO H B,et al.Selective recovery of valuable metals from spent lithium-ion batteries-process development and kinetics evaluation[J].Journal of Cleaner Production,2018,178:833-845. [26] LI L,QU W J,ZHANG X X,et al.Succinic acid-based leaching system:a sustainable process for recovery of valuable metals from spent Li-ion batteries[J].Journal of Power Sources,2015,282:544-551.
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