| Flexible graphene-based lithium ion batteries with ultrafast charge and discharge rates. | |
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MedLine Citation:
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PMID: 23045691 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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There is growing interest in thin, lightweight, and flexible energy storage devices to meet the special needs for next-generation, high-performance, flexible electronics. Here we report a thin, lightweight, and flexible lithium ion battery made from graphene foam, a three-dimensional, flexible, and conductive interconnected network, as a current collector, loaded with Li(4)Ti(5)O(12) and LiFePO(4), for use as anode and cathode, respectively. No metal current collectors, conducting additives, or binders are used. The excellent electrical conductivity and pore structure of the hybrid electrodes enable rapid electron and ion transport. For example, the Li(4)Ti(5)O(12)/graphene foam electrode shows a high rate up to 200 C, equivalent to a full discharge in 18 s. Using them, we demonstrate a thin, lightweight, and flexible full lithium ion battery with a high-rate performance and energy density that can be repeatedly bent to a radius of 5 mm without structural failure and performance loss. |
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Authors:
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Na Li; Zongping Chen; Wencai Ren; Feng Li; Hui-Ming Cheng |
Publication Detail:
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Type: Journal Article Date: 2012-10-08 |
Journal Detail:
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Title: Proceedings of the National Academy of Sciences of the United States of America Volume: 109 ISSN: 1091-6490 ISO Abbreviation: Proc. Natl. Acad. Sci. U.S.A. Publication Date: 2012 Oct |
Date Detail:
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Created Date: 2012-10-24 Completed Date: 2013-01-07 Revised Date: 2013-04-23 |
Medline Journal Info:
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Nlm Unique ID: 7505876 Medline TA: Proc Natl Acad Sci U S A Country: United States |
Other Details:
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Languages: eng Pagination: 17360-5 Citation Subset: - |
Affiliation:
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Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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