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

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

Description: Digital twin, Sulfide, Semi-solid-state battery, Low-temperature, Ah-level battery

Table Of Contents: 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

URI: https://scholar.dgist.ac.kr/handle/20.500.11750/59783
http://dgist.dcollection.net/common/orgView/200000892179

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