Title

Electrode/Electrolyte Interface Engineering for Fast-Rechargeable Lithium-Ion Batteries

DGIST Authors

Hyuntae Lee ; Hochun Lee ; Hongkyung Lee

Advisor

이호춘

Co-Advisor(s)

Hongkyung Lee

Issued Date

2025

Awarded Date

2025-02-01

Citation

Hyuntae Lee. (2025). Electrode/Electrolyte Interface Engineering for Fast-Rechargeable Lithium-Ion Batteries. doi: 10.22677/THESIS.200000846609

Type

Thesis

Description

Fast-rechargeable batteries, Li-ion batteries, High concentration electrolytes, Dual-layered electrode, Goldilock SEI

Table Of Contents

List of Contents
Abstract i
List of contents iii
List of tables v
List of figures vi

Chapter 1. Introduction 1
1.1. Necessity of Fast-rechargeable Lithium-ion Battery 1
1.2. About Lithium-ion Batteries 3
1.2.1. Milestones in LIBs Development 3
1.2.2. The Principle of Charging/Discharging Lithium-ion Battery 6
1.2.3. The Charging Mechanism of Graphite anode 9
1.3. Challenges of Fast-rechargeable Lithium-ion Batteries 13
1.4. Several Approaches Toward Improving XFC Performance 17
1.4.1. Electrode Engineering 18
1.4.2. Electrolyte Engineering 20
1.4.3. Interphase (SEI) Engineering 22
1.5. Research Goals 23
1.6. References 25
Chapter 2. Electrode Engineering 35
2.1. Introduction 36
2.2. Experimental Method 38
2.2.1. Electrode preparation 38
2.2.2. Cell assembly 38
2.2.3. Electrochemical Testing 39
2.2.4. Electrode Characterization 39
2.2.5. Computational Analysis 40
2.3. Results and Discussion 41
2.4. Conclusion 59
2.5. References 61
2.6. Supporting Information 72
Chapter 3. Electrolyte engineering 79
3.1. Introduction 80
3.2. Experimental Method 82
3.2.1. Electrolyte Preparation 82
3.2.2. Electrode Preparation 83
3.2.3. Electrochemical Testing 83
3.2.4. Characterization 84
3.2.5. Computational Analysis 85
3.3. Results and Discussion 86
3.4. Conclusion 103
3.5. References 104
3.6. Supporting Information 111
Chapter 4. Interphase engineering 113
4.1. Introduction 114
4.2. Experimental Method 115
4.2.1. Electrolyte preparation 115
4.2.2. Electrode preparation 116
4.2.3. Electrochemical Testing 116
4.2.4. Characterization 117
4.3. Results and Discussion 118
4.4. Conclusion 128
4.5. References 129
4.6. Supporting Information 133
Chapter 5. Concluding Remark 136
5.1. Summarizing Key Features of DLE, LPCE, and “Goldilocks” SEI 137
5.2.1. DLE: Addressing SOC and Overpotential Gradients 137
5.2.2. LPCE: Facilitating Li+ Desolvation and Interfacial Kinetics 137
5.2.3. “Goldilocks SEI”: Inorganic/organic balanced-SEI 138
5.2. Combining Approaches to Determine the Most Effective Strategies 139
5.2.1. XFC cycling with DLE and 3DMC+F Electrolyte 139
5.2.2. Evaluation the Impact of Li⁺ Solvation and SEI Engineering 140
5.3. Perspectives 141
Summary in Korean 144

URI

http://hdl.handle.net/20.500.11750/57982
http://dgist.dcollection.net/common/orgView/200000846609

DOI

10.22677/THESIS.200000846609

Degree

Doctor

Department

Department of Energy Science and Engineering

Publisher

DGIST

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