期刊
INTERNATIONAL JOURNAL OF NANOTECHNOLOGY
卷 11, 期 9-11, 页码 737-746出版社
INDERSCIENCE ENTERPRISES LTD
DOI: 10.1504/IJNT.2014.063784
关键词
lithium-ion batteries; electrode; anode; graphite; graphitic carbon nitride
资金
- EPSRC (UK)
- UCL Enterprise Fund
- EPSRC [EP/L017091/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/L017091/1] Funding Source: researchfish
Lithium-ion batteries (LIBs) are the current devices of choice for portable energy storage applications; however, improvements in energy and power densities are required to sustain future more demanding tasks, such as those associated with automotive transport. Commercially, LIB anodes are typically made from graphitic carbon-based systems that present bottlenecks associated with surface passivation and slow intercalation kinetics. We have investigated layered/graphitic carbon nitrides (gCNMs) as alternative anode materials; their unique structure and chemistry enable new intercalation processes not available for pure-C graphite. Our gCNMs are prepared from C, N-containing precursors treated at different temperatures. Cyclic voltammetry showed clear oxidation/reduction cycles in the 0.5-1.5 V range indicating that Li+ intercalation took place resulting in electric conduction properties of the previously semiconducting material. Higher reaction temperatures lead to buckling of the graphitic layers and consequent loss of planarity, with a negative effect on their electrochemical performance.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据