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Thermoelectrochemically Activated MoO2 Powder Electrode for Lithium Secondary Batteries
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ku, Jun H. | - |
dc.contributor.author | Jung, Yoon S. | - |
dc.contributor.author | Lee, Kyu T. | - |
dc.contributor.author | Kim, Chang H. | - |
dc.contributor.author | Oh, Seung M. | - |
dc.date.accessioned | 2009-07-30T03:06:38Z | - |
dc.date.available | 2009-07-30T03:06:38Z | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | J. Electrochem. Soc., 156, A688 (2009) | en |
dc.identifier.issn | 0013-4651 | - |
dc.identifier.uri | https://hdl.handle.net/10371/5922 | - |
dc.description.abstract | The high temperature lithiation behavior of the MoO2 electrode is examined, which is lithiated by one-electron reduction (by
addition reaction) at room temperature. At elevated temperatures, this electrode is lithiated with four-electron reduction by addition and continued conversion reaction. As a result of four-electron reduction, the initial crystalline MoO2 phase is decomposed into a nanosized mixture of metallic Mo and Li2O, which is in turn converted to nanosized MoO2 upon forthcoming delithiation. An interesting feature here is that as-generated nanosized MoO2 is now fully lithiated up to four-electron reduction even at room temperature. This phenomenon is named thermoelectrochemical activation because the extension from one- to four-electron reduction is achieved by a simple charge–discharge cycling made at elevated temperatures. The thermoelectrochemically activated MoO2 electrode delivers a reversible specific capacity that is close to the theoretical four-electron capacity (838 mAh g−1) with an excellent cycle performance at room temperature. | en |
dc.description.sponsorship | This work was supported by the WCU program through KOSEF
funded by the Ministry of Education, Science and Technology (no. 400-2008-0230). The authors also acknowledge the Research Center for Energy Conversion and Storage for financial support. | en |
dc.language.iso | en | en |
dc.publisher | Electrochemical Society | en |
dc.title | Thermoelectrochemically Activated MoO2 Powder Electrode for Lithium Secondary Batteries | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 오승모 | - |
dc.identifier.doi | 10.1149/1.3141670 | - |
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