Recycled tetrahedron-like CuCl from waste Cu scraps for lithium ion battery anode
Recycled tetrahedron-like CuCl from waste Cu scraps for lithium ion battery anode
复制标题
从废铜废料中回收类四面体 CuCl 用于锂离子电池负极
DOI：
10.1016/j.wasman.2017.04.010
复制
发表时间：
2017
期刊：
影响因子：
8.1
通讯作者：
Dai Zhipeng
中科院分区：
文献类型：
--
作者：
Hou Hongying;Yao Yuan;Liu Song;Duan Jixiang;Liao Qishu;Yu Chengyi;Li Dongdong;Dai Zhipeng
金属铜的广泛应用不可避免地产生了大量的废铜材料。为了在温和的条件下回收有用的铜并减少环境排放，通过简便的水热路线将废铜废料以具有高经济附加值（EVA）的氯化亚铜粉末的形式回收。通过扫描电子显微镜 (SEM)、能量色散 X 射线光谱 (EDX) 和 X 射线衍射 (XRD) 对回收的 CuCl 粉末进行了表征。结果表明，回收的氯化亚铜粉末由许多规则的四面体状微粒组成。此外，为了降低锂离子电池（LIB）负极成本并建立废铜屑与LIB的连接，对回收的CuCl粉末作为LIB负极活性材料进行了评价。正如预期的那样，即使经过 50 次循环，在 2.0 C 下的可逆放电容量仍约为 171.8 mAh/g，这意味着令人满意的循环稳定性。显然，令人满意的结果可能会为发展循环经济和可持续能源产业开辟新途径，这对于资源回收和环境保护都非常重要。
The wide applications of metal Cu inevitably resulted in a large quantity of waste Cu materials. In order to recover the useful Cu under the mild conditions and reduce the environmental emission, waste Cu scraps were recycled in the form of CuCl powders with high economic value added (EVA) via the facile hydrothermal route. The recycled CuCl powders were characterized in terms of scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). The results suggested that the recycled CuCl powders consisted of many regular tetrahedron-like micro-particles. Furthermore, in order to reduce the cost of lithium ion battery (LIB) anode and build the connection of waste Cu scraps and LIB, the recycled CuCl powders were evaluated as the anode active material of LIB. As expected, the reversible discharge capacity was about 171.8 mAh/g at 2.0 C even after 50 cycles, implying the satisfactory cycle stability. Clearly, the satisfactory results may open a new avenue to develop the circular economy and the sustainable energy industry, which would be very important in terms of both the resource recovery and the environmental protection.