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dc.contributor.advisor 홍승태 -
dc.contributor.author Jihun Roh -
dc.date.accessioned 2022-08-17T16:00:11Z -
dc.date.available 2022-08-17T16:00:11Z -
dc.date.issued 2022 -
dc.identifier.uri http://dgist.dcollection.net/common/orgView/200000629297 en_US
dc.identifier.uri http://hdl.handle.net/20.500.11750/16790 -
dc.description Solid-state batteries, solid electrolyte, air-stability, ionic conductivity, X-ray diffraction, exploratory synthesis -
dc.description.abstract -
dc.description.statementofresponsibility N -
dc.description.tableofcontents 1. Motivation 1
1.1. Why all-solid-state batteries 1
1.2. Discovery of new materials 2
1.3. Introduction to Li4-xGe1-xSbxS4 4
1.4. Introduction to Li5-xAlS4-xClx 7
2. Experimental 9
2.1. Synthesis 9
2.1.1. Synthesis of Li4-xGe1-xSbxS4 9
2.1.2. Synthesis of Li5-xAlS4-xClx 11
2.2, Material characterization 11
2.2.1. Powder Xr-ay diffraction 11
2.2.2. Electrochemical analysis 12
2.2.3. Bond valence sum calculation of Li4-xGe1-xSbxS4 13
2.2.4. DFT-calculation of Li5-xAlS4-xClx 13
3. Results and discussions 15
3.1. Results of Li4-xGe1-xSbxS4 15
3.1.1. Structural analysis 15
3.1.2. Li+-transport 28
3.1.3. Dry-air stability 30
3.1.4. Charge/discharge profile 32
3.2. Results of Li5-xAlS4-xClx 36
3.2.1. Structural analysis 36
3.2.2. Li+-transport properties 49
3.2.3. DFT calculation 51
4. Conclusion 54
5. References 56
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dc.format.extent 65 -
dc.language eng -
dc.publisher DGIST -
dc.subject Solid-state batteries, solid electrolyte, air-stability, ionic conductivity, X-ray diffraction, exploratory synthesis -
dc.title Synthesis, structural and electrochemical characterization of new solid electrolytes Li4-xGe1-xSbxS4 and Li5-xAlS4-xClx for all-solid-state batteries -
dc.title.alternative 전고체전지용 새로운 고체전해질 Li4-xGe1-xSbxS4와 Li5-xAlS4-xClx의 합성, 구조 및 전기화학적 특성에 대한 연구 -
dc.type Thesis -
dc.identifier.doi 10.22677/thesis.200000629297 -
dc.description.degree Master -
dc.contributor.department Department of Energy Science and Engineering -
dc.contributor.coadvisor Hochun Lee -
dc.date.awarded 2022/08 -
dc.publisher.location Daegu -
dc.description.database dCollection -
dc.citation XT.EM 노78 202208 -
dc.date.accepted 8/11/22 -
dc.contributor.alternativeDepartment 에너지공학과 -
dc.embargo.liftdate 2027-08-31 -
dc.contributor.affiliatedAuthor Jihun Roh -
dc.contributor.affiliatedAuthor Seung-Tae Hong -
dc.contributor.affiliatedAuthor Hochun Lee -
dc.contributor.alternativeName 노지훈 -
dc.contributor.alternativeName Seung-Tae Hong -
dc.contributor.alternativeName 이호춘 -
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Department of Energy Science and Engineering Theses Master

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