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Title: Controlled 3D Carbon Nanotube Architecture Coated with MoO x Material by ALD Technique: A High Energy Density Lithium‐Ion Battery Electrode

Journal Article · · Advanced Materials Interfaces
 [1];  [1];  [1]
  1. Department of Energy Science and Engineering Indian Institute of Technology Bombay Mumbai 400076 India

Due to its high theoretical capacity, energy density, and excellent reversibility with Li/Li + , molybdenum oxide is one of the vastly studied electrode material in lithium‐ion batteries. However, like most of the oxides, it also suffers from poor cyclic stability because of its low electrical conductivity. In 3D core–shell structure prepared by atomic layer deposition coating, it can provide superiority in nanoscale decoration than other deposition methods because of its extreme conformality and precise thickness control on high aspect ratio surfaces. This report illustrates the electrochemical activity of 3D core–shell type amorphous MoO x material coated by atomic layer deposition technique on conducting carbon nanotubes (CNT) scaffold which exhibits excellent overall cell capacity. The obtained capacity is manifold higher than its planar 2D counterpart and that can become an advanced nanoscale fabrication methodology of such 3D nanostructures for electrode preparation. Such binder free MoO x /CNT core–shell electrode structure shows very high and stable electrochemical activity toward Li/Li + system. An optimal thickness of MoO x on CNT is also found out in order to attain the most stable cyclic performance of this nanostructure. A stable reversible areal capacity of 645 µAh cm −2 with specific capacity of 915 mAh g −1 is achieved from optimized MoO x /CNT assembly.

Sponsoring Organization:
USDOE
Grant/Contract Number:
DE‐AC36‐08GO28308
OSTI ID:
1380045
Journal Information:
Advanced Materials Interfaces, Journal Name: Advanced Materials Interfaces Vol. 4 Journal Issue: 17; ISSN 2196-7350
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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