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Recent Progress of Electrochemical Energy Devices: Metal Oxide–Carbon Nanocomposites as Materials for Next-Generation Chemical Storage for Renewable Energy

Department of Chemical Engineering, Kwangwoon University, Seoul 01897, Korea
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Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Sustainability 2019, 11(13), 3694; https://doi.org/10.3390/su11133694
Received: 30 April 2019 / Revised: 24 June 2019 / Accepted: 26 June 2019 / Published: 5 July 2019
With the importance of sustainable energy, resources, and environmental issues, interest in metal oxides increased significantly during the past several years owing to their high theoretical capacity and promising use as electrode materials for electrochemical energy devices. However, the low electrical conductivity of metal oxides and their structural instability during cycling can degrade the battery performance. To solve this problem, studies on carbon/metal-oxide composites were carried out. In this review, we comprehensively discuss the characteristics (chemical, physical, electrical, and structural properties) of such composites by categorizing the structure of carbon in different dimensions and discuss their application toward electrochemical energy devices. In particular, one-, two-, and three-dimensional (1D, 2D, and 3D) carbon bring about numerous advantages to a carbon/metal-oxide composite owing to the unique characteristics of each dimension. View Full-Text
Keywords: metal oxide; carbon; composite; energy storage; electrochemical device metal oxide; carbon; composite; energy storage; electrochemical device
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Seok, D.; Jeong, Y.; Han, K.; Yoon, D.Y.; Sohn, H. Recent Progress of Electrochemical Energy Devices: Metal Oxide–Carbon Nanocomposites as Materials for Next-Generation Chemical Storage for Renewable Energy. Sustainability 2019, 11, 3694.

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