返回
Highly efficient lithium-ion battery cathode material recycling using deep eutectic solvent based nanofluids
DOI:10.1039/d2su00047d.png)
摘要
En 中文
Waste battery materials are precious resources that can be recycled under certain specific conditions. Traditional recycling methods require high energy consumption, have low efficiency, and lead to serious pollution. With the aim of developing a mild and efficient approach to recycle spent cathode materials of lithium-ion batteries (LIBs), nanoparticles dispersed in deep eutectic solvents (DESs), herein referred to as nanofluids, for the first time, were utilized as a medium for recycling LIBs. 100% liberation efficiency was achieved under mild conditions thanks to the collaboration of DESs and nanoadditives, in which DESs worked as a medium for dispersing of cathode materials and nanoadditives enable an enhancement of heat and mass transfer of the solvent system. Notably, though the main aim of this work is the liberation of the cathode active material from spent LIBs, it is shown that the presence of nano-additives in DESs could double the metal leaching efficiency in comparison to that of pure DESs. A mechanistic study of static thermal properties and dynamic observation of nanofluids demonstrated that the liberation rate could be enhanced by 15% with a 0.8% thermal conductivity (k) enhancement when boron nitride (BN) was employed as a nanoadditive. Additionally, simulation of the recycling process via a computational fluid dynamics (CFD) method indicated that mass transfer plays a key role in enhancing the recycling rate of LIB materials. Moreover, DESs could be used at least five times without affecting their recycling activity. In view of the low energy consumption, low toxicity, recyclability, and simplicity of the experimental procedure described herein, it offers a promising approach for the recycling of LIB cathode materials at an industrial scale. DESs based nanofluids were utilized for the first time as a medium for recycling lithium ion batteries. 100% liberation efficiency and doubled leaching efficiency compared to pristine DES were achieved under mild conditions.
Keyword:
VALUABLE METALS
HEAT-TRANSFER
RECOVERY
DISSOLUTION
LIBERATION
COBALT
ACID
期刊
R
IF:
4.9
论文数:
290
被引数:
1.4K
机构
引用论文
New Bifunctional Deep-Eutectic Solvent for In Situ Selective Extraction of Valuable Metals from Spent Lithium Batteries新型双功能低共熔溶剂原位选择性萃取废旧锂电池中的有价金属
Selective recovery of cobalt from mixed lithium ion battery wastes using deep eutectic solvent使用低共熔溶剂从混合锂离子电池废料中选择性回收钴
Lithium ion battery recycling using high-intensity ultrasonication使用高强度超声波回收锂离子电池
GREEN CHEMISTRY
IF9.2
Advances in Intelligent Regeneration of Cathode Materials for Sustainable Lithium-Ion Batteries可持续锂离子电池正极材料智能再生研究进展
Dissolution of cathode active material of spent Li-ion batteries using tartaric acid and ascorbic acid mixture to recover Co使用酒石酸和抗坏血酸混合物溶解废旧锂离子电池的阴极活性材料以回收Co
HYDROMETALLURGY
IF5.3
Recycling of lithium-ion batteries: a novel method to separate coating and foil of electrodes锂离子电池的回收: 一种分离电极涂层和箔的新方法

