Degradation Mechanism Analysis on the LiFePO4/Electrolyte Interface for the Advanced Lithium-ion Batteries and All-solid-state Batteries
- 발행기관 서강대학교 일반대학원
- 지도교수 장지현
- 발행년도 2025
- 학위수여년월 2025. 8
- 학위명 석사
- 학과 및 전공 일반대학원 화학과
- 실제 URI http://www.dcollection.net/handler/sogang/000000081884
- UCI I804:11029-000000081884
- 본문언어 영어
- 저작권 서강대학교 논문은 저작권 보호를 받습니다.
목차
1. Introduction 12
2. Experimental 15
2.1 Synthesis of solid-state electrolyte (SSE) 15
2.2 Electrochemical analysis 15
2.2.1 Electrode preparation 15
2.2.2 Cell fabrication 16
2.2.3 Charge/discharge cycling test 17
2.3 Characterization 17
2.3.1 Scanning electron microscopy (SEM) 17
2.3.2 X-ray photoelectron spectroscopy (XPS) 18
2.3.3 Electrochemical impedance spectroscopy (EIS) 18
2.3.4 X-ray diffraction (XRD) 18
2.3.5 Brunauer-Emmett-Teller (BET) analysis 19
3. Results and Discussion 20
3.1 Characterization of LiFePO4 cathode active materials 20
3.2 Electrochemical performance of LiFePO4 materials 26
3.3 Electrochemical effect of electrolytes on LiFePO4 surface 37
3.4 Investigation of degradation mechanisms at the LiFePO4/electrolyte
interface based on electrochemical analysis 44
3.5 Application and potential of LiFePO4 in all-solid-state batteries 53
4. Conclusions 62
References 64
