Free-Standing Copper Nanowire Network Current Collector for Improving Lithium Anode Performance

• DOI: 10.1021/acs.nanolett.6b01581
• Publication Date: 2016-06-02T17:27:36Z
• Authors: Lei-Lei Lu; Jin Ge; Jun-Nan Yang; Si-Ming Chen; Hong-Bin Yao; Fei Zhou; Shu-Hong Yu
• Keywords: Current collector; Dendrite (mathematics); Lithium metal

Lithium metal is one of the most attractive anode materials for next-generation lithium batteries due to its high specific capacity and low electrochemical potential. However, poor cycling performance serious safety hazards, caused by growth dendritic mossy lithium, has long hindered application based batteries. Herein, we reported a rational design free-standing Cu nanowire (CuNW) network suppress via accommodating in three-dimensional (3D) nanostructures. We demonstrated that as 7.5 mA h cm–2 can be plated into copper current collector without lithium. The on CuNW exhibited Coulombic efficiency (average 98.6% during 200 cycles) outstanding rate owing suppression dendrite conductivity network. Our results demonstrate nanostructural could promising strategy improve enabling lithium–metal