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  Department of Energy Science and Engineering Theses Ph.D.

Digital Twin Modeling and Simulation for Sulfide-Based Solid-State Batteries under Practical Design Conditions

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dc.contributor.advisor 이호춘 -
dc.contributor.author Hyobin Lee -
dc.date.accessioned 2026-01-23T10:59:43Z -
dc.date.available 2026-01-23T10:59:43Z -
dc.date.issued 2025 -
dc.identifier.uri https://scholar.dgist.ac.kr/handle/20.500.11750/59783 -
dc.identifier.uri http://dgist.dcollection.net/common/orgView/200000892179 -
dc.description Digital twin, Sulfide, Semi-solid-state battery, Low-temperature, Ah-level battery -
dc.description.tableofcontents Abstract i
List of contents ii
List of figures iii
List of tables vi

Ⅰ. Introduction 1
1.1 Solid-state battery roadmaps 1
1.2 Necessity of microstructure information for analyzing solid-state batteries 2
1.3 Digital twin is the powerful tool for analyzing solid-state batteries 3

ⅠⅠ. Understanding the Effects of Diffusion Coefficient and Exchange Current Density on the
Electrochemical Model 4
2.1 Introduction 4
2.2 Results and discussion 8
2.2.1 Design and electrochemical parameters for cathode half cell model 8
2.2.2 Simulated voltage profiles depending on the C-rate 14
2.2.3 Development of the non-fitting electrochemical model 16
2.3 Conclusion 17

ⅠⅠⅠ. Digital Twin Sulfide-Based Semi-Solid-State Batteries: Unraveling Structural and
Electrochemical Behaviors 18
3.1 Introduction 18
3.2 Results and discussion 20
3.2.1 Digital twin composite cathode structure 20
3.2.2 Digital twin electrolyte structure 23
3.2.3 Digital twin electrochemical simulation 25
3.3 Conclusion 27

ⅠⅤ. Rational Design of Large-Format Sulfide-Based Solid-State Batteries Operated at Low-
Temperature 28
4.1 Introduction 28
4.2 Methods and parameter mining 30
4.2.1 Stacks-resolved thermos-electrochemical model 30
4.2.2 Electrochemical and structural modeling parameters 31
4.3 Results and discussion 33
4.4 Conclusion 36

References 37
Summary in Korean 47		 -
dc.format.extent 47 -
dc.language eng -
dc.publisher DGIST -
dc.title Digital Twin Modeling and Simulation for Sulfide-Based Solid-State Batteries under Practical Design Conditions -
dc.title.alternative 황화물 기반 전고체전지의 상용화를 위한 디지털 트윈 모델링 및 시뮬레이션 -
dc.type Thesis -
dc.identifier.doi 10.22677/THESIS.200000892179 -
dc.description.degree Doctor -
dc.contributor.department Department of Energy Science and Engineering -
dc.contributor.coadvisor Yong Min Lee -
dc.date.awarded 2025-08-01 -
dc.publisher.location Daegu -
dc.description.database dCollection -
dc.citation XT.ED 이95 202508 -
dc.date.accepted 2025-07-21 -
dc.contributor.alternativeDepartment 에너지공학과 -
dc.subject.keyword Digital twin, Sulfide, Semi-solid-state battery, Low-temperature, Ah-level battery -
dc.contributor.affiliatedAuthor Hyobin Lee -
dc.contributor.affiliatedAuthor Hochun Lee -
dc.contributor.affiliatedAuthor Yong Min Lee -
dc.contributor.alternativeName 이효빈 -
dc.contributor.alternativeName Hochun Lee -
dc.contributor.alternativeName 이용민 -
dc.rights.embargoReleaseDate 2028-08-31 -
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