title: Recycled tetrahedron-like CuCl from waste Cu scraps for lithium ion battery anode.
abstract: 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 171.8mAh/g at 2.0C 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.
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 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: Song
authors.initials: S
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: 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: Chengyi
authors.initials: C
authors.lastname: Yu
authors.affiliation: Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China.
authors.forename: Dongdong
authors.initials: D
authors.lastname: Li
authors.affiliation: Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China.
authors.forename: Zhipeng
authors.initials: Z
authors.lastname: Dai
mesh_terms: D011211:Electric Power Supplies; D004566:Electrodes; D059029:Electronic Waste; D008094:Lithium; D059027:Recycling; D014961:X-Ray Diffraction
chemical_list: D008094:Lithium
keywords: Circular economy; Lithium ion battery; Recycled tetrahedral CuCl; Resource recovery; Waste Cu scraps