Vlad, AlexandruReddy, Arava Leela MohanaAjayan, AnakhaSingh, NeelamGohy, Jean-FrançoisMelinte, SorinAjayan, Pulickel M.2013-08-222013-08-222012Vlad, Alexandru, Reddy, Arava Leela Mohana, Ajayan, Anakha, et al.. "Roll up nanowire battery from silicon chips." <i>Proceedings of the National Academy of Sciences,</i> 109, no. 38 (2012) National Academy of Sciences: 15168-15173. http://dx.doi.org/10.1073/pnas.1208638109.https://hdl.handle.net/1911/71759Here we report an approach to roll out Li-ion battery components from silicon chips by a continuous and repeatable etch-infiltratepeel cycle. Vertically aligned silicon nanowires etched from recycled silicon wafers are captured in a polymer matrix that operates as Liþ gel-electrolyte and electrode separator and peeled off to make multiple battery devices out of a single wafer. Porous, electrically interconnected copper nanoshells are conformally deposited around the silicon nanowires to stabilize the electrodes over extended cycles and provide efficient current collection. Using the above developed process we demonstrate an operational full cell 3.4 V lithium-polymer silicon nanowire (LIPOSIL) battery which is mechanically flexible and scalable to large dimensions.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articlepolymer electrolytecore-shell nanowiresenergy storageflexible electronicswaste managementhttp://dx.doi.org/10.1073/pnas.1208638109