. He, L.P., Sun, S.Y., and Yu, J.G. (2018). Performance of LiNi1/3Co1/3Mn1/3O2 prepared from spent lithium-ion batteries by a carbonate co-precipitation method. Ceramics International. 44 (1): 351-357.
. Nayaka, G., Zhang, Y., Dong, P., Wang, D., Pai, K., Manjanna, J., and Xiao, J. (2018). Effective and environmentally friendly recycling process designed for LiCoO2 cathode powders of spent Li-ion batteries using mixture of mild organic acids. Waste Management, 78, 51-57.
. Meshram, P., Pandey, B.D., Mankhand, T.R., and Deveci, H. (2016). Acid baking of spent lithium ion batteries for selective recovery of major metals: a two-step process. Journal of Industrial and Engineering Chemistry, 43, 117-126.
. Li, L., Dunn, J.B., Zhang, X.X., Gaines, L., Chen, R.J., Wu, F., and Amine, K. (2013). Recovery of metals from spent lithium-ion batteries with organic acids as leaching reagents and environmental assessment. Journal of Power Sources, 233, 180-189.
. Tang, X., Tang, W., Duan, J., Yang, W., Wang, R., Tang, M., and Li, J. (2021). Recovery of valuable metals and modification of cathode materials from spent lithium-ion batteries. Journal of Alloys and Compounds, 874, 159853.
. Xiao, J., Niu, B., Song, Q., Zhan, L., and Xu, Z. (2021). Novel targetedly extracting lithium: An environmental-friendly controlled chlorinating technology and mechanism of spent lithium ion batteries recovery. Journal of hazardous materials, 404, 123947.
. Gao, W., Liu, C., Cao, H., Zheng, X., Lin, X., Wang, H., and Sun, Z. (2018). Comprehensive evaluation on effective leaching of critical metals from spent lithium-ion batteries. Waste management, 75, 477-485.
. Liu, F., Peng, C., Ma, Q., Wang, J., Zhou, S., Chen, Z., and Lundström, M. (2021). Selective lithium recovery and integrated preparation of high-purity lithium hydroxide products from spent lithium-ion batteries. Separation and Purification Technology, 259, 118181.
. Chen, X., Guo, C., Ma, H., Li, J., Zhou, T., Cao, L., and Kang, D. (2018). Organic reductants based leaching: A sustainable process for the recovery of valuable metals from spent lithium ion batteries. Waste Management, 75, 459-468.
. Billy, E., Joulié, M., Laucournet, R., Boulineau, A., De Vito, E., and Meyer, D. (2018). Dissolution mechanisms of LiNi1/3Mn1/3Co1/3O2 positive electrode material from lithium-ion batteries in acid solution. ACS applied materials & interfaces. 10 (19): 16424-16435.
. Sommerville, R., Zhu, P., Rajaeifar, M. A., Heidrich, O., Goodship, V., and Kendrick, E. (2021). A qualitative assessment of lithium ion battery recycling processes. Resources, Conservation and Recycling, 165, 105219.
. Li, J., He, Y., Fu, Y., Xie, W., Feng, Y., and Alejandro, K. (2021). Hydrometallurgical enhanced liberation and recovery of anode material from spent lithium-ion batteries. Waste Management, 126, 517-526.
. Meng, F., Liu, Q., Kim, R., Wang, J., Liu, G., and Ghahreman, A. (2020). Selective recovery of valuable metals from industrial waste lithium-ion batteries using citric acid under reductive conditions: Leaching optimization and kinetic analysis. Hydrometallurgy, 191, 105160.
. Zhang, X., Bian, Y., Xu, S., Fan, E., Xue, Q., Guan, Y., and Chen, R. (2018). Innovative application of acid leaching to regenerate Li (Ni1/3Co1/3Mn1/3) O2 cathodes from spent lithium-ion batteries. ACS Sustainable Chemistry & Engineering. 6 (5): 5959-5968.
. Zheng, Y., Song, W., Mo, W.t., Zhou, L., and Liu, J.W. (2018). Lithium fluoride recovery from cathode material of spent lithium-ion battery. RSC advances. 8 (16): 8990-8998.
. Wang, C., Wang, S., Yan, F., Zhang, Z., Shen, X., and Zhang, Z. (2020). Recycling of spent lithium-ion batteries: Selective ammonia leaching of valuable metals and simultaneous synthesis of high-purity manganese carbonate. Waste Management, 114, 253-262.
. Tang, Y., Zhang, B., Xie, H., Qu, X., Xing, P., and Yin, H. (2020). Recovery and regeneration of lithium cobalt oxide from spent lithium-ion batteries through a low-temperature ammonium sulfate roasting approach. Journal of Power Sources, 474, 228596.
. Zhang, X., Li, L., Fan, E., Xue, Q., Bian, Y., Wu, F., and Chen, R. (2018). Toward sustainable and systematic recycling of spent rechargeable batteries. Chemical Society Reviews. 47 (19): 7239-7302.
. Guo, Y., Li, F., Zhu, H., Li, G., Huang, J., and He, W. (2016). Leaching lithium from the anode electrode materials of spent lithium-ion batteries by hydrochloric acid (HCl). Waste Management, 51, 227-233.
. He, L.P., Sun, S.Y., Song, X.F., and Yu, J.G. (2017). Leaching process for recovering valuable metals from the LiNi1/3Co1/3Mn1/3O2 cathode of lithium-ion batteries. Waste management, 64, 171-181.
. Chen, X., Ma, H., Luo, C., and Zhou, T. (2017). Recovery of valuable metals from waste cathode materials of spent lithium-ion batteries using mild phosphoric acid. Journal of hazardous materials, 326, 77-86.
. Lee, C.K., and Rhee, K.I. (2003). Reductive leaching of cathodic active materials from lithium ion battery wastes. Hydrometallurgy. 68 (1-3): 5-10.
. Yao, L., Feng, Y., and Xi, G. (2015). A new method for the synthesis of LiNi 1/3 Co 1/3 Mn 1/3 O 2 from waste lithium ion batteries. RSC advances. 5 (55): 44107-44114.
. Nayaka, G., Pai, K., Santhosh, G., and Manjanna, J. (2016). Dissolution of cathode active material of spent Li-ion batteries using tartaric acid and ascorbic acid mixture to recover Co. Hydrometallurgy, 161, 54-57.
. Roshanfar, M., Golmohammadzadeh, R., and Rashchi, F. (2019). An environmentally friendly method for recovery of lithium and cobalt from spent lithium-ion batteries using gluconic and lactic acids. Journal of Environmental Chemical Engineering. 7 (1): 102794.
. Li, L., Ge, J., Chen, R., Wu, F., Chen, S., and Zhang, X. (2010). Environmental friendly leaching reagent for cobalt and lithium recovery from spent lithium-ion batteries. Waste Management. 30 (12): 2615-2621.
. Chen, X., Luo, C., Zhang, J., Kong, J., and Zhou, T. (2015). Sustainable recovery of metals from spent lithium-ion batteries: a green process. ACS Sustainable Chemistry & Engineering. 3 (12): 3104-3113.
. Li, L., Fan, E., Guan, Y., Zhang, X., Xue, Q., Wei, L., and Chen, R. (2017). Sustainable recovery of cathode materials from spent lithium-ion batteries using lactic acid leaching system. ACS Sustainable Chemistry & Engineering, 5(6): 5224-5233.
. Gao, W., Zhang, X., Zheng, X., Lin, X., Cao, H., Zhang, Y., and Sun, Z. (2017). Lithium carbonate recovery from cathode scrap of spent lithium-ion battery: a closed-loop process. Environmental science and technology. 51 (3): 1662-1669.
. He, L.P., Sun, S.Y., Mu, Y.Y., Song, X.F., and Yu, J.G. (2017). Recovery of lithium, nickel, cobalt, and manganese from spent lithium-ion batteries using L-tartaric acid as a leachant. ACS Sustainable Chemistry and Engineering. 5 (1): 714-721.
. Li, L., Qu, W., Zhang, X., Lu, J., Chen, R., Wu, F., and Amine, K. (2015). Succinic acid-based leaching system: A sustainable process for recovery of valuable metals from spent Li-ion batteries. Journal of Power Sources, 282, 544-551.
. Meshram, P., Pandey, B., and Mankhand, T. (2015). Hydrometallurgical processing of spent lithium ion batteries (LIBs) in the presence of a reducing agent with emphasis on kinetics of leaching. Chemical Engineering Journal, 281, 418-427.
. Sung, M.H., Park, C., Kim, C.J., Poo, H., Soda, K., and Ashiuchi, M. (2005). Natural and edible biopolymer poly‐γ‐glutamic acid: synthesis, production, and applications. The Chemical Record. 5 (6): 352-366.
. Fu, Y., He, Y., Li, J., Qu, L., Yang, Y., Guo, X., and Xie, W. (2020). Improved hydrometallurgical extraction of valuable metals from spent lithium-ion batteries via a closed-loop process. Journal of Alloys and Compounds, 847, 156489.
. Ku, H., Jung, Y., Jo, M., Park, S., Kim, S., Yang, D., and Kwon, K. (2016). Recycling of spent lithium-ion battery cathode materials by ammoniacal leaching. Journal of hazardous materials, 313, 138-146.
. Zhu, B., Zhang, Y., Zou, Y., Yang, Z., Zhang, B., Zhao, Y., and Dong, P. (2021). Leaching kinetics and interface reaction of LiNi0. 6Co0. 2Mn0. 2O2 materials from spent LIBs using GKB as reductant. Journal of Environmental Management, 300, 113710.
. Dutta, D., Kumari, A., Panda, R., Jha, S., Gupta, D., Goel, S., and Jha, M.K. (2018). Close loop separation process for the recovery of Co, Cu, Mn, Fe and Li from spent lithium-ion batteries. Separation and Purification Technology, 200, 327-334.
. Zhou, S., Zhang, Y., Meng, Q., Dong, P., Fei, Z., and Li, Q. (2021). Recycling of LiCoO2 cathode material from spent lithium ion batteries by ultrasonic enhanced leaching and one-step regeneration. Journal of Environmental Management, 277, 111426.
. Weissman, S.A., and Anderson, N.G. (2015). Design of experiments (DoE) and process optimization. A review of recent publications. Organic Process Research & Development. 19 (11): 1605-1633.
. Yang, Y., Huang, G., Xu, S., He, Y., and Liu, X. (2016). Thermal treatment process for the recovery of valuable metals from spent lithium-ion batteries. Hydrometallurgy, 165, 390-396.
. Kettler, R.M., Wesolowski, D.J., and Palmer, D.A. (1992). Dissociation quotients of malonic acid in aqueous sodium chloride media to 100 C. Journal of solution chemistry. 21 (8): 883-900.
. Hamborg, E.S., Niederer, J.P., and Versteeg, G.F. (2007). Dissociation constants and thermodynamic properties of amino acids used in CO2 absorption from (293 to 353) K. Journal of Chemical & Engineering Data. 52 (6): 2491-2502.
. Chen, W.S., and Ho, H.J. (2018). Recovery of valuable metals from lithium-ion batteries NMC cathode waste materials by hydrometallurgical methods. Metals. 8 (5): 321.
. Golmohammadzadeh, R., Faraji, F., and Rashchi, F. (2018). Recovery of lithium and cobalt from spent lithium ion batteries (LIBs) using organic acids as leaching reagents: A review. Resources, Conservation and Recycling, 136, 418-435.
. Aboyeji, O., Oloke, J., Arinkoola, A., Oke, M., and Ishola, M. (2020). Optimization of media components and fermentation conditions for citric acid production from sweet potato peel starch hydrolysate by Aspergillus niger. Scientific African, 10, e00554.