Thanks, Elizabeth. I think one thing the development of this robot shows is that space robots are becoming more specialized, as we also saw in this slideshow on some NASA is developing with the Canadian Space Agency: http://www.designnews.com/author.asp?section_id=1386&doc_id=254560
Researchers have been working on a number of alternative chemistries to lithium-ion for next-gen batteries, silicon-air among them. However, while the technology has been viewed as promising and cost-effective, to date researchers haven’t managed to develop a battery of this chemistry with a viable running time -- until now.
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