Journal
ACS NANO
Volume 10, Issue 6, Pages 6227-6234Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.6b02319
Keywords
graphene; Mn3O4; nanocomposite; flexible Li-ion batteries; high performance
Categories
Funding
- National Natural Science Foundation of China [51402236, 51472204, 53102219, 51221001, 51521061]
- Natural Science Foundation of Shannxi Province [2015JM5180]
- Fundamental Research Funds for the Central Universities [3102014JCQ01020, 3102015BJ(II)MYZ02]
- Research Fund of the State Key Laboratory of Solidification Processing (NWPU), China [123-QZ-2015]
- Program of Introducing Talents of Discipline to Universities [B08040]
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Advanced electrode design is crucial in the rapid development of flexible energy storage devices for emerging flexible electronics. Herein, we report a rational synthesis of graphene/Mn3O4 nanocomposite membranes with excellent mechanical flexibility and Li-ion storage properties. The strong interaction between the large-area graphene nanosheets and long Mn3O4 nanowires not only enables the membrane to endure various mechanical deformations but also produces a strong synergistic effect of enhanced reaction kinetics by providing enlarged electrode/electrolyte contact area and reduced electron/ion transport resistance. The mechanically robust membrane is explored as a freestanding anode for Li-ion batteries, which delivers a high specific capacity of similar to 800 mAh g(-1) based on the total electrode mass, along with superior high-rate capability and excellent cycling stability. A flexible full Li-ion battery is fabricated with excellent electrochemical properties and high flexibility, demonstrating its great potential for high-performance flexible energy storage devices.
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