Surface Adaptive Dual-Layer Protection of Li-metal Anode for Extending Cycle-life of Li-Sulfur Batteries with Lean Electrolyte
- Title
- Surface Adaptive Dual-Layer Protection of Li-metal Anode for Extending Cycle-life of Li-Sulfur Batteries with Lean Electrolyte
- Author(s)
- Bokyung Choi
- DGIST Authors
- Bokyung Choi ; Hongkyung Lee ; Yong Min Lee
- Advisor
- 이홍경
- Co-Advisor(s)
- Yong Min Lee
- Issued Date
- 2024
- Awarded Date
- 2024-02-01
- Type
- Thesis
- Description
- Surface-adaptive protection;Dual-layer structural protection;Li-S batteries;Li-metal anodes;Lean electrolytes
- Table Of Contents
-
Ⅰ. Introduction 1
1.1. Lithium Secondary Batteries 1
1.1.1. Historical Background 1
1.1.2. Operating Principles of Rechargeable Lithium-Ion Batteries · 2
1.1.3. Next Generation Batteries: Revisiting Li Metal Anode 3
1.2. Ultra-light Lithium-Sulfur Batteries 3
1.2.1. Cell Configuration and Basic Principles · 3
1.2.2. Challenges 5
1.2.3. Requirements for High-Energy Cell Design 6
1.2.4. Challenges under Lean Electrolyte Conditions 7
1.3. Introducing Protective Layer 8
1.4. Research Goals 11
Ⅱ. Experimental Method 13
2.1. Preparation of PL-Li 13
2.2. Material Characterization 13
2.3. Electrochemical measurements 13
2.4. Postmortem analysis 14
2.5. Computational simulation 14
Ⅲ. Results and discussion 16
3.1. Unraveling the degradation modes of model PLs 16
3.2. Finding key factors for designing surface adaptive PLs · 23
3.3. Design surface adaptive dual protection layer (APL) · 30
IV. Concluding Remark 36
References · 37
Summary in Korean · 42
- URI
-
http://hdl.handle.net/20.500.11750/48094
http://dgist.dcollection.net/common/orgView/200000728079
- Degree
- Master
- Department
- Department of Energy Science and Engineering
- Publisher
- DGIST
- Related Researcher
-
-
Lee, Hongkyung
- Research Interests Batteries; Electrochemistry; Interfaces
-
- Files in This Item:
-
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- Appears in Collections:
- Department of Energy Science and Engineering Theses Master
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