The reductive leaching of waste lithium ion batteries in presence of iron ions: Process optimization and kinetics modelling

2020 ◽  
Vol 262 ◽  
pp. 121312 ◽  
Author(s):  
Sina Ghassa ◽  
Akbar Farzanegan ◽  
Mahdi Gharabaghi ◽  
Hadi Abdollahi
Minerals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 555 ◽  
Author(s):  
Weronika Urbańska

The battery powder (anodic and cathodic mass) manually separated from spent Li-ion batteries used in laptops was subjected to acidic reductive leaching to recover the Co, Li, and Ni contained in it. In the laboratory experiments, 1.5 M sulfuric acid was used as the leaching agent and the reducing agents were 30% H2O2 solution or/and glutaric acid. Glutaric acid is a potential new reducing agent in the leaching process of spent lithium-ion batteries (LIBs). The influence of the type of the used reducer on obtained recovery degrees of Co, Li, and Ni as well as the synergism of the two tested reducing compounds were analyzed. As a result, it was determined that it is possible to efficiently hydrometallurgically separate Co, Li, and Ni from battery powder into solutions. The highest recovery degrees of the investigated metals (Co: 87.85%; Li: 99.91%; Ni: 91.46%) were obtained for samples where two reducers, perhydrol and glutaric acid, were added, thus confirming the assumed synergic action of H2O2 and C5H8O4 in a given reaction environment.


2018 ◽  
Vol 71 ◽  
pp. 350-361 ◽  
Author(s):  
Nathália Vieceli ◽  
Carlos A. Nogueira ◽  
Carlos Guimarães ◽  
Manuel F.C. Pereira ◽  
Fernando O. Durão ◽  
...  

JOM ◽  
2019 ◽  
Vol 71 (12) ◽  
pp. 4465-4472 ◽  
Author(s):  
Yongming Chen ◽  
Di Chang ◽  
Nannan Liu ◽  
Fang Hu ◽  
Chao Peng ◽  
...  

Abstract A hydrometallurgical method involving natural biomass waste as reductant was proposed for the treatment of spent mixed-type lithium-ion batteries. Results showed that almost complete dissolution of Li, Ni, Mn and nearly 90% dissolution of Co were achieved under the optimal conditions of H2SO4 concentration of 2 M, waste tea biomass dosage of 0.3 g/g, solid/ratio of 50 g L−1, temperature of 90°C and time of 120 min. The leaching kinetics was further investigated, and the activation energies were determined to be 1.7 kJ mol−1, 10.3 kJ mol−1, 10.1 kJ mol−1 and 10.9 kJ mol−1 for Li, Ni, Mn and Co, respectively. The cathode materials before leaching and the leaching residue were characterized with different analytical methods. The characterization results confirmed that the addition of the waste tea acted as reductant and resulted in better dissolution of the metals, supporting the principles of sustainable processes by decreasing the chemical consumption and integrating waste into a secondary use.


Author(s):  
Shaohua Lu ◽  
Weidong Hu ◽  
Xiaojun Hu

Due to their low cost and improved safety compared to lithium-ion batteries, sodium-ion batteries have attracted worldwide attention in recent decades.


Author(s):  
А.Б. Абдрахманова ◽  
◽  
В. А. Кривченко ◽  
Н. М. Омарова

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