Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 6, Issue 16, Pages 7227-7235Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta00940f
Keywords
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Funding
- Science and Technology Commission of Shanghai Municipality [17JC1401700]
- Changjiang Young Scholars Program of China
- National Natural Science Foundation of China [51711540298, 61628401, U1632115, 51475093]
- National Key Technologies R&D Program of China [2015ZX02102-003]
- Natural Science Foundation of Jiangsu Province [BK20171199]
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Herein, an electrode architecture design using three-dimensional carbon/ZnO nanomembrane composite foam (C/ZnO NM foam) was proposed to achieve highly stable areal capacity at a practical mass loading. The composite, consisting of three-dimensional interconnected carbon foam anchored with two-dimensional ZnO NMs, was directly used as an anode of a lithium-ion battery without additional additives. The large surface area and high porosity of the carbon foam lead to a high ZnO loading of 3-4 mg cm(-2). The flexibility of the ZnO NMs, effective electronic and ionic transport throughout the three-dimensional composite structure, and capacity from the carbon foam enhance the areal capacity and stability of the composite. Thus, the synthesized anode retains 92% capacity after 700 cycles at 2 A g(-1) and after 500 cycles at 5 A g(-1) and manifests a remarkable areal capacity of 4.3 mA h cm(-2). The proposed approach and the composite structure produced in this study may have important potential applications in many fields requiring high energy storage capacity.
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