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dc.contributor.authorYoungjun Kim-
dc.contributor.authorJung-Hyun Lee-
dc.contributor.authorSungeun Cho-
dc.contributor.authorYongwoo Kwon-
dc.contributor.authorInsik In-
dc.contributor.authorJihoon Lee-
dc.contributor.author유남호-
dc.contributor.authorElsa Reichmanis-
dc.contributor.author고형덕-
dc.contributor.author이규태-
dc.contributor.author권현근-
dc.contributor.author고두현-
dc.contributor.authorHeesun Yang-
dc.contributor.authorByoungnam Park-
dc.date.accessioned2015-12-03T01:15:37Z-
dc.date.available2015-12-03T01:15:37Z-
dc.date.issued201407-
dc.identifier.citationVOL 8, NO 7, 6701-6712-
dc.identifier.issn19360851-
dc.identifier.other42332-
dc.identifier.urihttp://pubs.kist.re.kr/handle/201004/47901-
dc.description.abstractOrigins of the irreversible capacity loss were addressed through probing changes in the electronic and structural properties of hollow-structured Co3O4 nanoparticles (NPs) during lithiation and delithiation using electrochemical Co3O4 transistor devices that function as a Co3O4 Li-ion battery. Additive-free Co3O4 NPs were assembled into a Li-ion battery, allowing us to isolate and explore the effects of the Co and Li2O formation/decomposition conversion reactions on the electrical and structural degradation within Co3O4 NP films. NP films ranging between a single monolayer and multilayered film hundreds of nanometers thick prepared with blade-coating and electrophoretic deposition methods, respectively, were embedded in the transistor devices for in situ conduction measurements as a function of battery cycles. During battery operation, the electronic and structural properties of Co3O4 NP films in the bulk, Co3O4/electrolyte, and Co3O4/current collector interfaces were spatially mapped to address the origin of the initial irreversible capacity loss from the first lithiation process. Further, change in carrier injection/extraction between the current collector and the Co3O4 NPs was explored using a modified electrochemical transistor device with multiple voltage probes along the electrical channel.-
dc.publisherACS Nano-
dc.subjectcobalt oxide-
dc.subjectconversion reaction-
dc.subjectcapacity loss-
dc.subjectLi-ion battery-
dc.subjectnanoparticle-
dc.titleAdditive-Free Hollow-Structured Co3O4 Nanoparticle Li-Ion Battery: The Origins of Irreversible Capacity Loss-
dc.typeArticle-
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