Title

Enhancing Lithium-Ion Battery Performance with a Nitride-Based Sacrificial Cathode Additive for SEI Compensation

Alternative Title

SEI 보상을 위한 질화물 기반 희생 양극 첨가제를 활용한 리튬 이온 배터리 성능 향상

DGIST Authors

Juhwan Kim ; Seung-Tae Hong ; Hochun Lee

Advisor

홍승태

Co-Advisor(s)

Hochun Lee

Issued Date

2026

Awarded Date

2026-02-01

Type

Thesis

Description

pre-lithiation, sacrificial cathode, cathode additive

Table Of Contents

Abstract i

List of contents ii

List of figures and tables iv

Ⅰ. Introduction 1
1.1 The necessity of a sacrificial cathode 1
1.2 Why is a new sacrificial cathode necessary? 4

Ⅱ. Experimental 6
2.1 Material synthesis and characterization 6
2.2 Electrochemical characterization 8
2.2.1 Electrolyte 8
2.2.2 Li7MnN4 8
2.2.3 LiFePO4+Li7MnN4 10
2.2.4 NCM+ Li7MnN4 11
2.3 Dry coating process 14

Ⅲ. Result and Discussion 16
3.1 Li7MnN4 characterization 16
3.2 Li7MnN4 dry room exposure test 21
3.3 Electrochemical performance and analysis 23
3.3.1 LiFePO4+Li7MnN4 23
3.3.2 NCM+ Li7MnN4 26

Ⅳ. Conclusion 34

Ⅴ. References 36

URI

https://scholar.dgist.ac.kr/handle/20.500.11750/59680
http://dgist.dcollection.net/common/orgView/200000945753

DOI

10.22677/THESIS.200000945753

Degree

Master

Department

Department of Energy Science and Engineering

Publisher

DGIST

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