News Column

Findings from University of Wisconsin Update Understanding of Environmental Science and Technology

May 30, 2014

By a News Reporter-Staff News Editor at Ecology, Environment & Conservation -- Investigators publish new report on Environmental Science and Technology. According to news originating from Milwaukee, Wisconsin, by VerticalNews correspondents, research stated, "Although silicon nanowires (SiNW) have been widely studied as an ideal material for developing high-capacity lithium ion batteries (LIBs) for electric vehicles (EVs), little is known about the environmental impacts of such a new EV battery pack during its whole life cycle. This paper reports a life cycle assessment (LCA) of a high-capacity LIB pack using SiNW prepared via metal-assisted chemical etching as anode material."

Our news journalists obtained a quote from the research from the University of Wisconsin, "The LCA study is conducted based on the average U.S. driving and electricity supply conditions. Nanowastes and nanoparticle emissions from the SiNW synthesis are also characterized and reported. The LCA results show that over 50% of most characterized impacts are generated from the battery operations, while the battery anode with SiNW material contributes to around 15% of global warming potential and 10% of human toxicity potential. Overall the life cycle impacts of this new battery pack are moderately higher than those of conventional LIBs but could be actually comparable when considering the uncertainties and scale-up potential of the technology."

According to the news editors, the research concluded: "These results are encouraging because they not only provide a solid base for sustainable development of next generation LIBs but also confirm that appropriate nanomanufacturing technologies could be used in sustainable product development."

For more information on this research see: Life cycle environmental impact of high-capacity lithium ion battery with silicon nanowires anode for electric vehicles. Environmental Science & Technology, 2014;48(5):3047-55. (American Chemical Society -; Environmental Science & Technology -

The news correspondents report that additional information may be obtained from B. Li, Dept. of Mechanical Engineering, University of Wisconsin-Milwaukee , Milwaukee, Wisconsin 53211, United States. Additional authors for this research include X. Gao, J. Li and C. Yuan.

Keywords for this news article include: Milwaukee, Wisconsin, United States, North and Central America, Environmental Science and Technology.

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Source: Ecology, Environment & Conservation