Electric car batteries could be greener says EPA study

16 Июн 2014 | Author: | Комментарии к записи Electric car batteries could be greener says EPA study отключены
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Electric car batteries could be says EPA study

Batteries for electric cars could greener and this should be a to help improve the environmental for EVs, according to a new study.

modern lithium ion batteries overall promise for reducing gas emissions compared to petrol-fuelled and nickel metal-hydride battery-powered some of the materials and production should be improved to reduce environmental and public health the ‘cradle to grave’ study ABT Associates for the US Environmental Protection (EPA) concludes.


For example, batteries which use with nickel and cobalt as as solvent-based electrode processing, the highest potential for certain and human health impacts. The impacts include resource global warming, and ecological resulting from the production, and use of cobalt and nickel metal which can cause adverse pulmonary and neurological effects in exposed.

There are viable ways to these impacts, he said, cathode material substitution, electrode processing and recycling of from the batteries.

Tightening the case for EVs

The study, carried out a partnership with EPA, the Department of Energy, the li-ion industry, and academics, is the first assessment to bring together and use directly provided by li-ion suppliers, manufacturers, and recyclers. Its is to identify the materials or processes a li-ion battery’s lifecycle may have cause for concern, so battery manufacturers could use information to improve the environmental of their products, while are still in early stages of

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It also sought to evaluate the impacts of a nanotechnology innovation as carbon nanotube anode) could improve battery

Among other findings, the at ABT Associates found that of the global warming and other and health impacts were by the electricity grids used to the batteries when driving the

These impacts are sensitive to and regional grid mixes, Amarakoon, an Abt associate who co-led the If the batteries in use are drawing power the grids in the Midwest or South of the USA], much of the electricity be coming from coal-fired If it’s in New England or California, the rely more on renewables and gas, which emit greenhouse gases and other pollutants. However, she added, from the processing and manufacture of batteries should not be overlooked.

In terms of battery performance, Jay an Abt senior analyst who led the study Amarakoon, said, the nanotechnology that Abt assessed were carbon nanotubes (SWCNTs), are currently being researched for use as as they show promise for the energy density and ultimate of the li-ion batteries in vehicles. we found, however, is that the needed to produce the SWCNT in these early stages of is prohibitive. Over time, if focus on reducing the energy of the manufacturing process before

the environmental profile of the technology has the to improve dramatically.

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