Title

Enhancing Interfacial Stability of LiNi0.8Co0.1Mn0.1O2 for All-Solid-State-Batteries via Halide Coating

Alternative Title

할라이드 코팅으로 전고체 전지용 NCM 계면 안정성 향상

DGIST Authors

Hyohyun Cha ; Jong-Won Lee ; Jong-Soo Lee

Advisor

이종원

Co-Advisor(s)

Jong-Soo Lee

Issued Date

2023

Awarded Date

2023-02-01

Citation

Hyohyun Cha. (2023). Enhancing Interfacial Stability of LiNi0.8Co0.1Mn0.1O2 for All-Solid-State-Batteries via Halide Coating. doi: 10.22677/THESIS.200000655255

Type

Thesis

Description

"all-solid-state batteries", "sulfide solid-state electrolytes", "halide coating", "interfacial resistances", "chemical reactions"

Table Of Contents

Ⅰ. Introduction 1
Ⅱ. Literature survey 4
2.1 Sulfide solid-state electrolyte 4
2.2 Oxide coating on NCM cathode 8
2.3 Halide solid-state electrolyte 10
Ⅲ. Experimental 18
3.1 Preparation of materials 18
3.2 Coating approach 18
3.3 Characterization 19
3.4 All-solid-state battery assembly 19
3.5 Electrochemical measurements 20
Ⅳ. Results and discussion 21
4.1 Halide coating on NCM-based cathode active materials 21
4.2 Enhanced rate capability of halide-coated NCM cathode 31
4.3 Interfacial stability of halide-coated NCM in the composite cathode 33
4.4 Chemical composition analysis of composite electrolytes 39
4.5 Electrochemical performance of ASSBs 42
4.6 Preventing side reactions and microstructural degradation via halide coating 44
Ⅴ. Conclusion 46
Reference 47
국문요약문 52

URI

http://hdl.handle.net/20.500.11750/45740
http://dgist.dcollection.net/common/orgView/200000655255

DOI

10.22677/THESIS.200000655255

Degree

Master

Department

Department of Energy Science and Engineering

Publisher

DGIST

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