Hierarchically structured nanocarbon electrodes for flexible solid lithium batteries

Handle URI:
http://hdl.handle.net/10754/598460
Title:
Hierarchically structured nanocarbon electrodes for flexible solid lithium batteries
Authors:
Wei, Di; Hiralal, Pritesh; Wang, Haolan; Emrah Unalan, Husnu; Rouvala, Markku; Alexandrou, Ioannis; Andrew, Piers; Ryhänen, Tapani; Amaratunga, Gehan A.J.
Abstract:
The ever increasing demand for storage of electrical energy in portable electronic devices and electric vehicles is driving technological improvements in rechargeable batteries. Lithium (Li) batteries have many advantages over other rechargeable battery technologies, including high specific energy and energy density, operation over a wide range of temperatures (-40 to 70. °C) and a low self-discharge rate, which translates into a long shelf-life (~10 years) [1]. However, upon release of the first generation of rechargeable Li batteries, explosions related to the shorting of the circuit through Li dendrites bridging the anode and cathode were observed. As a result, Li metal batteries today are generally relegated to non-rechargeable primary battery applications, because the dendritic growth of Li is associated with the charging and discharging process. However, there still remain significant advantages in realizing rechargeable secondary batteries based on Li metal anodes because they possess superior electrical conductivity, higher specific energy and lower heat generation due to lower internal resistance. One of the most practical solutions is to use a solid polymer electrolyte to act as a physical barrier against dendrite growth. This may enable the use of Li metal once again in rechargeable secondary batteries [2]. Here we report a flexible and solid Li battery using a polymer electrolyte with a hierarchical and highly porous nanocarbon electrode comprising aligned multiwalled carbon nanotubes (CNTs) and carbon nanohorns (CNHs). Electrodes with high specific surface area are realized through the combination of CNHs with CNTs and provide a significant performance enhancement to the solid Li battery performance. © 2013 Elsevier Ltd.
Citation:
Wei D, Hiralal P, Wang H, Emrah Unalan H, Rouvala M, et al. (2013) Hierarchically structured nanocarbon electrodes for flexible solid lithium batteries. Nano Energy 2: 1054–1062. Available: http://dx.doi.org/10.1016/j.nanoen.2013.04.004.
Publisher:
Elsevier BV
Journal:
Nano Energy
Issue Date:
Sep-2013
DOI:
10.1016/j.nanoen.2013.04.004
Type:
Article
ISSN:
2211-2855
Sponsors:
This work was funded through the Nokia—Cambridge University Strategic Research Alliance in Nanoscience and Nanotechnology. We also acknowledge the Advanced Nanofabrication, Imaging and Characterisation Core Lab in King Abdullah University of Science and Technology (KAUST), Saudi Arabia for allowing us to use their Titan 60–300 kV TEM.
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Full metadata record

DC FieldValue Language
dc.contributor.authorWei, Dien
dc.contributor.authorHiralal, Priteshen
dc.contributor.authorWang, Haolanen
dc.contributor.authorEmrah Unalan, Husnuen
dc.contributor.authorRouvala, Markkuen
dc.contributor.authorAlexandrou, Ioannisen
dc.contributor.authorAndrew, Piersen
dc.contributor.authorRyhänen, Tapanien
dc.contributor.authorAmaratunga, Gehan A.J.en
dc.date.accessioned2016-02-25T13:21:06Zen
dc.date.available2016-02-25T13:21:06Zen
dc.date.issued2013-09en
dc.identifier.citationWei D, Hiralal P, Wang H, Emrah Unalan H, Rouvala M, et al. (2013) Hierarchically structured nanocarbon electrodes for flexible solid lithium batteries. Nano Energy 2: 1054–1062. Available: http://dx.doi.org/10.1016/j.nanoen.2013.04.004.en
dc.identifier.issn2211-2855en
dc.identifier.doi10.1016/j.nanoen.2013.04.004en
dc.identifier.urihttp://hdl.handle.net/10754/598460en
dc.description.abstractThe ever increasing demand for storage of electrical energy in portable electronic devices and electric vehicles is driving technological improvements in rechargeable batteries. Lithium (Li) batteries have many advantages over other rechargeable battery technologies, including high specific energy and energy density, operation over a wide range of temperatures (-40 to 70. °C) and a low self-discharge rate, which translates into a long shelf-life (~10 years) [1]. However, upon release of the first generation of rechargeable Li batteries, explosions related to the shorting of the circuit through Li dendrites bridging the anode and cathode were observed. As a result, Li metal batteries today are generally relegated to non-rechargeable primary battery applications, because the dendritic growth of Li is associated with the charging and discharging process. However, there still remain significant advantages in realizing rechargeable secondary batteries based on Li metal anodes because they possess superior electrical conductivity, higher specific energy and lower heat generation due to lower internal resistance. One of the most practical solutions is to use a solid polymer electrolyte to act as a physical barrier against dendrite growth. This may enable the use of Li metal once again in rechargeable secondary batteries [2]. Here we report a flexible and solid Li battery using a polymer electrolyte with a hierarchical and highly porous nanocarbon electrode comprising aligned multiwalled carbon nanotubes (CNTs) and carbon nanohorns (CNHs). Electrodes with high specific surface area are realized through the combination of CNHs with CNTs and provide a significant performance enhancement to the solid Li battery performance. © 2013 Elsevier Ltd.en
dc.description.sponsorshipThis work was funded through the Nokia—Cambridge University Strategic Research Alliance in Nanoscience and Nanotechnology. We also acknowledge the Advanced Nanofabrication, Imaging and Characterisation Core Lab in King Abdullah University of Science and Technology (KAUST), Saudi Arabia for allowing us to use their Titan 60–300 kV TEM.en
dc.publisherElsevier BVen
dc.subjectBatteryen
dc.subjectCarbonen
dc.subjectLi-ionen
dc.subjectNanohornsen
dc.subjectNanotubesen
dc.subjectPolymer electrolyteen
dc.titleHierarchically structured nanocarbon electrodes for flexible solid lithium batteriesen
dc.typeArticleen
dc.identifier.journalNano Energyen
dc.contributor.institutionNokia, Espoo, Finlanden
dc.contributor.institutionUniversity of Cambridge, Cambridge, United Kingdomen
dc.contributor.institutionOrta Dogu Teknik Universitesi, Ankara, Turkeyen
dc.contributor.institutionFEI Company, Hillsboro, United Statesen
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