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Upcycling of industrial iron scale waste for reutilization as anode material in lithium ion batteries
Materials Chemistry and Physics ( IF 4.6 ) Pub Date : 2021-09-22 , DOI: 10.1016/j.matchemphys.2021.125270
Mehmet Feryat Gülcan 1 , Billur Deniz Karahan 2, 3
Affiliation  

In this work, iron scale is used as the starting raw material to produce anode for lithium ion batteries. In this scope, three different samples are fabricated, then their properties are investigated to evaluate their performances. Firstly, the as received scale is washed with water and milled (Sample 1). Then two different modification methods are applied: physically mixing Sample 1 with carbon (Sample 2) and chemically treating Sample 1 with a polysaccharide contained methanol solution, followed by heat treatment (Sample 3). Galvanostatic tests show that the Sample 2 and Sample 3 exhibit 430 mAh g−1 and 573 mAh g−1, after 200th cycle, respectively. SEM observation reveals that Sample 3 has smaller sized particles with a homogeneous morphology. Raman analysis shows the existence of both graphitized and disordered carbon atoms in Sample 3. The improved performance of Sample 3 is believed to be related to its structural and compositional particularities. The approach presented in this article is expected to set an example for future studies to be carried out within the framework of waste valorisation for energy storage applications.



中文翻译:

工业铁垢废料的升级回收再利用作为锂离子电池的负极材料

在这项工作中,铁皮被用作生产锂离子电池负极的起始原料。在这个范围内,制造了三个不同的样品,然后研究了它们的特性以评估它们的性能。首先,将收到的水垢用水洗涤并研磨(样品 1)。然后应用两种不同的改性方法:将样品 1 与碳物理混合(样品 2)和用含有多糖的甲醇溶液对样品 1 进行化学处理,然后进行热处理(样品 3)。恒电流测试表明,样品 2 和样品 3 表现出 430 mAh g -1和 573 mAh g -1, 分别在第 200 次循环后。SEM观察表明样品3具有具有均匀形态的较小尺寸的颗粒。拉曼分析表明,样品 3 中同时存在石墨化和无序碳原子。据信样品 3 的性能改进与其结构和组成的特殊性有关。本文中提出的方法有望为未来在能源存储应用的废物价值化框架内进行的研究树立榜样。

更新日期:2021-10-20
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