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Roll up nanowire battery from silicon chips.
Vlad, Alexandru; Reddy, Arava Leela Mohana; Ajayan, Anakha; Singh, Neelam; Gohy, Jean-François; Melinte, Sorin; Ajayan, Pulickel M.
Afiliação
  • Vlad A; Department of Mechanical Engineering and Materials Science, Rice University, Houston, TX 77005, USA.
Proc Natl Acad Sci U S A ; 109(38): 15168-73, 2012 Sep 18.
Article em En | MEDLINE | ID: mdl-22949696
Here we report an approach to roll out Li-ion battery components from silicon chips by a continuous and repeatable etch-infiltrate-peel cycle. Vertically aligned silicon nanowires etched from recycled silicon wafers are captured in a polymer matrix that operates as Li(+) 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.
Assuntos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Silício / Nanotecnologia / Nanopartículas Metálicas / Nanofios Idioma: En Ano de publicação: 2012 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Silício / Nanotecnologia / Nanopartículas Metálicas / Nanofios Idioma: En Ano de publicação: 2012 Tipo de documento: Article