title: Recycled hierarchical tripod-like CuCl from Cu-PCB waste etchant for lithium ion battery anode.
abstract: Hierarchical CuCl with high economic value added (EVA) was successfully recycled with 85% recovery from the acid Cu printed circuit board (Cu-PCB) waste etchant via facile liquid chemical reduction. The micro-structure and morphology of the recycled hierarchical CuCl were systematically characterized in terms of scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), transmission electron microscopy (TEM) and Brunauer-Emmett-Teller (BET). Furthermore, the corresponding electrochemical performances as lithium ion battery (LIB) anode were also investigated in terms of galvanostatic charge/discharge, cyclic voltammetry (CV) and AC impedance. As expected, the recycled CuCl displayed a hierarchical tripod-like structure and large specific surface area of 21.2m2/g. As the anode in LIB, the reversible discharge capacity was about 201.4 mAh/g even after 100 cycles, implying the satisfactory cycle performance. Clearly, the satisfactory results may open a new avenue to develop the sustainable industry, which is very important in terms of both the resource recovery and the environmental protection.
authors.affiliation: Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China.
authors.forename: Song
authors.initials: S
authors.lastname: Liu
authors.affiliation: Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China. Electronic address: hongyinghou@kmust.edu.cn.
authors.forename: Hongying
authors.initials: H
authors.lastname: Hou
authors.affiliation: Faculty of Mechanical and Electronic Engineering, Kunming University of Science and Technology, Kunming 650093 China.
authors.forename: Xianxi
authors.initials: X
authors.lastname: Liu
authors.affiliation: Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China.
authors.forename: Jixiang
authors.initials: J
authors.lastname: Duan
authors.affiliation: Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Yao
authors.affiliation: Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China.
authors.forename: Qishu
authors.initials: Q
authors.lastname: Liao
authors.affiliation: Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China.
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.affiliation: Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China.
authors.forename: Yunzhen
authors.initials: Y
authors.lastname: Yang
keywords: Acid Cu printed circuit board waste etchant; Hierarchical structure; Lithium ion battery; Recycled CuCl anode; Resource recovery