DC Field | Value | Language |
---|---|---|
dc.contributor.author | kuk-jin jang | ko |
dc.contributor.author | jae-han jung | ko |
dc.contributor.author | dong myung kim | ko |
dc.contributor.author | ji-sang yu | ko |
dc.contributor.author | Lee, Jai Young | ko |
dc.date.accessioned | 2013-02-28T04:01:17Z | - |
dc.date.available | 2013-02-28T04:01:17Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1998 | - |
dc.identifier.citation | JOURNAL OF ALLOYS AND COMPOUNDS, v.268, no.1-2, pp.290 - 294 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | http://hdl.handle.net/10203/72677 | - |
dc.description.abstract | In order to investigate the effect of the equilibrium hydrogen pressure (plateau pressure) of metal hydride (MH) alloys on self-discharge behavior, V0.9Ti0.1 alloys having multi-plateau pressures (low and high plateau pressures) have been used as working electrodes in a half cell. The thermal desorption experiment and open-circuit potential monitoring were conducted to observe the self-discharge behavior of the electrode. From the thermal desorption spectra of the fully charged and discharged V0.9Ti0.1 electrode (to -0.7 V versus Hg/HgO), it is found that only the higher one of the two plateau pressure regions of the V0.9Ti0.1 electrodes is electrochemically useful for battery application. But the open-circuit potential change and thermal desorption spectra of the V0.9Ti0.1 electrode after various open-circuit storage periods prove that the self-discharge behavior is attributed to the hydrogen desorption from the low plateau pressure (10(-8) atm) as well as the high plateau pressure (0.1 atm). Therefore, it is suggested that the self-discharge behavior of V0.9Ti0.1 electrodes can not be effectively suppressed by reducing the plateau pressure of alloys through alloy modification. In addition, the pressure-composition-isotherms (P-C-T) of the low pressure region can be estimated by using the open-circuit potential corresponding to this region in Nernst's equation. (C) 1998 Elsevier Science S.A. | - |
dc.language | English | - |
dc.publisher | Elsevier Science Sa | - |
dc.subject | HYDROGEN STORAGE | - |
dc.subject | ALLOY | - |
dc.subject | BEHAVIOR | - |
dc.subject | ANODES | - |
dc.title | Self-discharge mechanism of Vanadium-Titanium metal hydride electrodes for Ni-MH rechargeable battery | - |
dc.type | Article | - |
dc.identifier.wosid | 000073075200052 | - |
dc.identifier.scopusid | 2-s2.0-0032026687 | - |
dc.type.rims | ART | - |
dc.citation.volume | 268 | - |
dc.citation.issue | 1-2 | - |
dc.citation.beginningpage | 290 | - |
dc.citation.endingpage | 294 | - |
dc.citation.publicationname | JOURNAL OF ALLOYS AND COMPOUNDS | - |
dc.contributor.nonIdAuthor | kuk-jin jang | - |
dc.contributor.nonIdAuthor | jae-han jung | - |
dc.contributor.nonIdAuthor | dong myung kim | - |
dc.contributor.nonIdAuthor | ji-sang yu | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | self-discharge | - |
dc.subject.keywordAuthor | hydrogen evolution | - |
dc.subject.keywordAuthor | plateau pressure | - |
dc.subject.keywordAuthor | metal-hydrogen electrode | - |
dc.subject.keywordAuthor | open-circuit potential | - |
dc.subject.keywordPlus | HYDROGEN STORAGE | - |
dc.subject.keywordPlus | ALLOY | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | ANODES | - |
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