Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 787, Issue -, Pages 301-308Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.02.042
Keywords
Molybdenum dioxide; Carbon; Hollow structure; Li-ion batteries; High-capacity anode
Categories
Funding
- National Natural Science Foundation of China [51772249, 51472204, 51521061]
- Fundamental Research Funds for the Central Universities [G2017KY0308]
- National Natural Science Foundation of Shannxi Province [2018JM5092]
- State Key Laboratory of Control and Simulation of Power System and Generation Equipment (Tsinghua University) [SKLD17KM02]
- Program of Introducing Talents of Discipline to Universities [B08040]
Ask authors/readers for more resources
As a new class of promising anode materials for Li-ion batteries, the application of transition metal oxides is hindered by poor electrochemical utilization and stability. In this work, we report a unique hollow structure of carbon-encapsulated MoO2 nanospheres as a high-rate and durable anode material for Li-ion batteries. Three-dimensional hierarchically porous carbon hollow nanospheres provide a universal and open framework for encapsulating MoO2 nanodeposits by a facile impregnation-calcination approach. The hybrid architecture is of great benefit in fast and stable Li-ion storage by shortening Li-ion and electron transport pathways, increasing electronic conductivity, and buffering volume fluctuation upon cycling. The electrochemical advantages bestow the MoO2/C nanocomposite with an outstanding specific capacity of 1051 mAh g(-1) at 0.1 A g(-1), superb rate capability (701 mAh g(-1) at 2Ag(-1)) and excellent cycling stability. The present study demonstrates the promising use of hollow-structured MoO2/C nanocomposites for high performance Li-ion batteries. (C) 2019 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available