相关实验视频
Updated: Jun 20, 2025

07:23
Construction and Testing of Coin Cells of Lithium Ion Batteries
Published on: August 2, 2012
31.5K
一种新的闭环生物技术,用于从离子电池活性阴极材料中回收
Eva Pakostova1,2,3,4, John Graves2, Egle Latvyte2
1Centre for Health and Life Sciences, Institute of Health and Wellbeing, Coventry University, Coventry, CV1 5FB, UK.
Microbiology (Reading, England)
|July 17, 2024
概括
这项研究展示了一种可持续的生物溶解方法,用于从使用过的离子电池中回收和. 开发的闭环系统实现了高金属回收和纯度,为传统回收提供了一个环保的替代方案.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
背景情况:
- 对离子电池 (LIB) 的需求快速增长,需要可持续的回收方法.
- 传统的火力和水力金回收工艺带来了环境挑战.
- 生物化为从废物中回收金属提供了一个有希望的,环保的方法.
研究的目的:
- 开发和优化一种基于生物炼的技术,用于从废弃物中工业规模回收贵金属.
- 使用微生物联盟从LiCoO2 (LCO) 阴极材料中提高金属回收率.
- 建立一个低浪费,闭环的生物炼系统,以高效和高纯度的金属提取.
主要方法:
- 在不同的温度和LCO度下,使用原生细胞酸性联合体对LCO进行直接的生物溶解.
- 微生物群体适应升高的LCO水平,以提高金属溶解度.
- 开发一个闭环间接生物冲洗系统,涉及产生酸的生物反应器 (AGB) 和选择性沉.
主要成果:
- 从低LCO度中实现了>80%的Co和90%的Li提取.
- 在30°C的调整后的联合体在直接和间接的水中表现出优异的性能,可回收高达99%的Li和83%的Co.
- 闭环系统在七个阶段中产生了>99.9%的纯氧化物和100%的回收,浪费最小.
结论:
- 开发的生物冲洗系统有效地从废弃LIB中回收高纯度金属,适合工业扩展.
- 这种环保方法最大限度地减少了浪费和抑制效应,为传统回收提供了可行的替代方案.
- 该技术显示了适应各种电池化学的潜力,为电池材料的循环经济做出了贡献.
相关概念视频
Bioremediation
18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K
Electrodeposition
621
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
Electrodeposition can...
621
Batteries and Fuel Cells
27.2K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
27.2K
Extraction: Advanced Methods
438
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
438
Electrolysis
26.2K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
26.2K

