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Investigators from Tsinghua University Have Reported New Data on Electrochemical Research (Porous polyhedral and fusiform Co3O4 anode materials for...

September 3, 2014



Investigators from Tsinghua University Have Reported New Data on Electrochemical Research (Porous polyhedral and fusiform Co3O4 anode materials for high-performance lithium-ion batteries)

By a News Reporter-Staff News Editor at Electronics Newsweekly -- A new study on Electrochemical Research is now available. According to news reporting out of Beijing, People's Republic of China, by VerticalNews editors, research stated, "Co3O4 is commonly used as a potential anode material for Li-ion batteries (LIBs). In this study, novel porous polyhedral and fusiform Co3O4 powders have been synthesized successfully through the hydrothermal method with different solvents followed by thermal treatment."

Our news journalists obtained a quote from the research from Tsinghua University, "It is shown that both of the polyhedrons (1.0-3.0 mu m in side length) and the spindles (2.0-5.0 mu m in length, 0.5-2.0 mu m in width) are composed of similar irregular nanoparticles (20-200 nm in diameter, 20-40 nm in thickness) bonded to each other. Evaluated by electrochemical measurements, both of them have high initial discharge capacities (1374.4 mAhg(-1) and 1326.3 mAhg(-1)) and enhanced cycling stabilities at the low rate (the capacity retention ratios at 0.1 C after 70 cycles are 91.6% and 92.2%, respectively). However, the rate capability of the spindles (93.8%, 90.1% and 98.9% of the second discharge capacities after 70 cycles at 0.5 C, 1 C and 2 C, respectively) is better than the polyhedrons' (only 76.2%, 42.1% and 59.3% under the same conditions)."

According to the news editors, the research concluded: "Remarkable, the unique morphologies and special structures may be extended to synthesize other similar transition metal oxides (NiO, Fe3O4, et al.) as high performance anodes for LIBs."

For more information on this research see: Porous polyhedral and fusiform Co3O4 anode materials for high-performance lithium-ion batteries. Electrochimica Acta, 2014;135():420-427. Electrochimica Acta can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England.

Our news journalists report that additional information may be obtained by contacting G.Y. Huang, Tsinghua Univ, Sch Mat Sci & Engn, Beijing Natl Center Electron Microscopy, Beijing 100084, People's Republic of China. Additional authors for this research include S.M. Xu, S.S. Lu, L.Y. Li and H.Y. Sun.

Keywords for this news article include: Asia, Beijing, Electrochemical Research, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Electronics Newsweekly


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