期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 20, 页码 17061-17067出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b02480
关键词
hybrid Mg-Li battery; VO2; nanoflakes; dendrite-free; APC-LiCl electrolyte; high energy density
资金
- National Key Research and Development Program of China [2016YFA0202603]
- National Natural Science Foundation of China [51521001, 51602239, 51302203]
- National Natural Science Fund for Distinguished Young Scholars [51425204]
- Hubei Provincial Natural Science Foundation of China [2016CFB267]
- Fundamental Research Funds for the Central Universities [WUT: 2017-zy-008, 2016IVA090, 2017III009, 2017III007]
- China Scholarship Council [201606955096]
The hybrid magnesium-lithium-ion batteries (MLIBs) combining the dendrite-free deposition of the Mg anode and the fast Li intercalation cathode are better alternatives to Li-ion batteries (LIBs) in large-scale power storage systems. In this article, we reported hybrid MLIBs assembled with the VO2 cathode, dendrite-free Mg anode, and the MgLi dual-salt electrolyte. Satisfactorily, the VO2 cathode delivered a stable plateau at about 1.75 V, and a high specific discharge capacity of 244.4 mA h g(1). To the best of our knowledge, the VO2 cathode displays the highest energy density of 427 Wh kg(1) among reported MLIBs in coin-type batteries. In addition, an excellent rate performance and a wide operating temperature window from 0 to 55 degrees C have been obtained. The combination of VO2 cathode, dual-salt electrolyte, and Mg anode would pave the way for the development of high energy density, safe, and low-cost batteries.
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