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Published on: November 11, 2013
Hierarchically Nanostructured CuO⁻Cu Current Collector Fabricated by Hybrid Methods for Developed Li-Ion Batteries
Jin-Young So1, Chan-Ho Lee2, Ji-Eun Kim3
1Department of Electrical Engineering, Soongsil University, Seoul 156-743, Korea. igiyoun@ssu.ac.kr.
Abstract:
We present a simple method of fabricating a hierarchically nanostructured CuO⁻Cu current collector by using laser ablation and metal mold imprinting to maximize the surface area. The laser ablation of the Cu current collector created the CuO nanostructure on the Cu-collector surface. The microstructure was transferred by subsequent imprinting of the microstructure metal mold on the Cu collector. Then, the laser-ablation nanostructure was formed. Consequently, a hierarchical structure is generated. The laser-ablated hierarchical CuO⁻Cu current collector exhibited an improved capacity while maintaining a cyclability that is similar to those of conventional graphite batteries.
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