Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 768, Issue -, Pages 525-534Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.07.027
Keywords
ZnFe2O4; Supersonic cold spraying; Graphitic carbon nitride; Lithium-ion battery
Categories
Funding
- National Research Foundation (NRF) - Ministry of Science, ICT & Future Planning [NRF-2016M1A2A2936760, NRF-2017R1A2B4005639, 2016R1A2B3009481]
- National Research Foundation of Korea [2016R1A2B3009481] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
This manuscript reports the preparation, characterization, and testing of stable high-capacity lithium-ion battery anodes based on graphitic carbon nitride (g-CN) nanosheets hosting ZnFe2O4 nanoparticles (ZFCN). The ZFCN is prepared by a one-pot thermal process, then supersonic cold spraying is used to rapidly deposit films with a lamellar morphology that allows enhanced capacity retention by preventing particle agglomeration. The presence of g-CN nanosheets minimizes degradation of ZnFe2O4 by providing a buffering space during the lithiation/delithiation process. The ZFCN composite anodes exhibit first reversible capacities of 1550 mAh.g(-1) at 50 mA.g(-1) and up to 934 mAh.g(-1) at 1000 mA.g(-1) after 20 cycles. The superior electrochemical performance and capacity retention (88% after 160 cycles at 100 mA.g(-1) relative to the first reversible capacity) are attributed to highly reversible alloying/conversion mechanisms. The combination of high performance and stability with the use of low-cost earth-abundant elements and scalable processing approaches gives this ZFCN composite immense potential for use as a stable high-performance anode material for lithium-ion batteries. (C) 2018 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