12-04 :: April/May 2012
nanotimes News in Brief
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Instead, the silicon swells harmlessly into the hollow interior, which is also too small for electrolyte mole- cules to enter. After the first charging cycle, it ope- rates for more than 6,000 cycles with 85% capa- city remaining. Cui said future research is aimed at simplifying the process for making the double-wall silicon nanotubes. Others in his group are developing new high-performance cathodes to combine with the new anode to form a battery with five times the per- formance of today’s lithium-ion technology. In 2008, Cui founded a company, Amprius, which licensed rights to Stanford’s patents for his silicon nanowire
anode technology. Its near-term goal is to produce a battery with double the energy density of today’s lithium-ion batteries.
Hui Wu, Gerentt Chan, Jang Wook Choi, Ill Ryu, Yan Yao, Matthew T. McDowell, Seok Woo Lee, Ariel Jackson, Yuan Yang, Liangbing Hu, Yi Cui: Stable cycling of double- walled silicon nanotube battery anodes through solid-elec- trolyte interphase control, In: Nature Nanotechnology, Vol. 7(2012), No. 5, May 2012, Pages 310-315 DOI:10.1038/ nnano.2012.35:
http://dx.doi.org/10.1038/nnano.2012.35
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