New Nanostructured Li 2 S/Silicon Rechargeable Battery with High Specific Energy

Handle URI:
http://hdl.handle.net/10754/598974
Title:
New Nanostructured Li 2 S/Silicon Rechargeable Battery with High Specific Energy
Authors:
Yang, Yuan; McDowell, Matthew T.; Jackson, Ariel; Cha, Judy J.; Hong, Seung Sae; Cui, Yi
Abstract:
Rechargeable lithium ion batteries are important energy storage devices; however, the specific energy of existing lithium ion batteries is still insufficient for many applications due to the limited specific charge capacity of the electrode materials. The recent development of sulfur/mesoporous carbon nanocomposite cathodes represents a particularly exciting advance, but in full battery cells, sulfur-based cathodes have to be paired with metallic lithium anodes as the lithium source, which can result in serious safety issues. Here we report a novel lithium metal-free battery consisting of a Li 2S/mesoporous carbon composite cathode and a silicon nanowire anode. This new battery yields a theoretical specific energy of 1550 Wh kg ?1, which is four times that of the theoretical specific energy of existing lithium-ion batteries based on LiCoO2 cathodes and graphite anodes (∼410 Wh kg?1). The nanostructured design of both electrodes assists in overcoming the issues associated with using sulfur compounds and silicon in lithium-ion batteries, including poor electrical conductivity, significant structural changes, and volume expansion. We have experimentally realized an initial discharge specific energy of 630 Wh kg ?1 based on the mass of the active electrode materials. © 2010 American Chemical Society.
Citation:
Yang Y, McDowell MT, Jackson A, Cha JJ, Hong SS, et al. (2010) New Nanostructured Li 2 S/Silicon Rechargeable Battery with High Specific Energy . Nano Lett 10: 1486–1491. Available: http://dx.doi.org/10.1021/nl100504q.
Publisher:
American Chemical Society (ACS)
Journal:
Nano Letters
KAUST Grant Number:
KUS-11-001-12
Issue Date:
14-Apr-2010
DOI:
10.1021/nl100504q
PubMed ID:
20184382
Type:
Article
ISSN:
1530-6984; 1530-6992
Sponsors:
We would like to thank Dr. Fabio La Manna at Stanford University For helpful discussions. Y.C. acknowledges support from the King Abdullah University of Science and Technology (KAUST) Investigator Award (No. KUS-11-001-12) and MDV Innovators Award. Y.Y. acknowledges support from a Stanford Graduate Fellowship. M.T.M. acknowledges support from a Stanford Graduate Fellowship and a National Defense Science and Engineering Graduate Fellowship.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorYang, Yuanen
dc.contributor.authorMcDowell, Matthew T.en
dc.contributor.authorJackson, Arielen
dc.contributor.authorCha, Judy J.en
dc.contributor.authorHong, Seung Saeen
dc.contributor.authorCui, Yien
dc.date.accessioned2016-02-25T13:50:24Zen
dc.date.available2016-02-25T13:50:24Zen
dc.date.issued2010-04-14en
dc.identifier.citationYang Y, McDowell MT, Jackson A, Cha JJ, Hong SS, et al. (2010) New Nanostructured Li 2 S/Silicon Rechargeable Battery with High Specific Energy . Nano Lett 10: 1486–1491. Available: http://dx.doi.org/10.1021/nl100504q.en
dc.identifier.issn1530-6984en
dc.identifier.issn1530-6992en
dc.identifier.pmid20184382en
dc.identifier.doi10.1021/nl100504qen
dc.identifier.urihttp://hdl.handle.net/10754/598974en
dc.description.abstractRechargeable lithium ion batteries are important energy storage devices; however, the specific energy of existing lithium ion batteries is still insufficient for many applications due to the limited specific charge capacity of the electrode materials. The recent development of sulfur/mesoporous carbon nanocomposite cathodes represents a particularly exciting advance, but in full battery cells, sulfur-based cathodes have to be paired with metallic lithium anodes as the lithium source, which can result in serious safety issues. Here we report a novel lithium metal-free battery consisting of a Li 2S/mesoporous carbon composite cathode and a silicon nanowire anode. This new battery yields a theoretical specific energy of 1550 Wh kg ?1, which is four times that of the theoretical specific energy of existing lithium-ion batteries based on LiCoO2 cathodes and graphite anodes (∼410 Wh kg?1). The nanostructured design of both electrodes assists in overcoming the issues associated with using sulfur compounds and silicon in lithium-ion batteries, including poor electrical conductivity, significant structural changes, and volume expansion. We have experimentally realized an initial discharge specific energy of 630 Wh kg ?1 based on the mass of the active electrode materials. © 2010 American Chemical Society.en
dc.description.sponsorshipWe would like to thank Dr. Fabio La Manna at Stanford University For helpful discussions. Y.C. acknowledges support from the King Abdullah University of Science and Technology (KAUST) Investigator Award (No. KUS-11-001-12) and MDV Innovators Award. Y.Y. acknowledges support from a Stanford Graduate Fellowship. M.T.M. acknowledges support from a Stanford Graduate Fellowship and a National Defense Science and Engineering Graduate Fellowship.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectEnergy storageen
dc.subjectLithium-sulfur batteryen
dc.subjectMesoporous carbonen
dc.subjectSilicon nanowiresen
dc.titleNew Nanostructured Li 2 S/Silicon Rechargeable Battery with High Specific Energyen
dc.typeArticleen
dc.identifier.journalNano Lettersen
dc.contributor.institutionStanford University, Palo Alto, United Statesen
kaust.grant.numberKUS-11-001-12en

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