Title

Development of Calcium Batteries Utilizing Vanadium-Based Cathode Materials

Alternative Title

바나듐 기반 양극재를 이용한 칼슘 전지 개발

DGIST Authors

Hyunjin Lee ; Seung-Tae Hong ; Hochun Lee

Advisor

홍승태

Co-Advisor(s)

Hochun Lee

Issued Date

2025

Awarded Date

2025-08-01

Type

Thesis

Description

Calcium-ion batteries, Vanadium-based cathodes, Dual-additive electrolyte, Calcium metal batteries, Aqueous manganese batteries

Table Of Contents

List of Contents
Abstract ⅰ
List of contents ⅲ
List of figures and tables ⅵ
Ⅰ. Introduction 1
1.1 Why calcium-ion batteries 1
1.2 Additional Research: Why manganese-aqueous batteries 2
Ⅱ. A High-Voltage Cathode Material Based on K3V3(PO4)4·1.2H2O for Non-Aqueous Calcium- Ion Batteries 4
2.1 Introduction 4
2.2 Experimental 5
2.2.1 Material synthesis and characterization of K3V3(PO4)4·1.2H2O 5
2.2.2 Electrochemical characterization 5
2.3 Results and Discussion 6
2.3.1 K3V3(PO4)4·1.2H2O synthesis and characterization 6
2.3.2 Electrochemical calcium storage performance of K3V3(PO4)4·1.2H2O 6
2.3.3 Analysis of calcium storage mechanism of K3V3(PO4)4·1.2H2O 7
2.4 Conclusion 8
2.5 References 16
Ⅲ. High Performance Nonaqueous Ca-ion Cathodes based on NASICON-NaV2(PO4)3 and the Way to Activate Their Structure 19
3.1 Introduction 19
3.2 Experimental 20
3.2.1 Material synthesis and characterization of Na3V2(PO4)3 20
3.2.2 Electrochemical characterization 20
3.2.3 Diffusion barrier calculation 20
3.3 Results and Discussion 21
3.3.1 Na3V2(PO4)3 synthesis and characterization 21
3.3.2 Electrochemical calcium storage performance of NaV2(PO4)3 21
3.3.3 Mechanism of calcium activation process on NaV2(PO4)3 23
3.4 Conclusion 26
3.5 References 37
Ⅳ. Highly Reversible Calcium Plating and Stripping at Ambient Temperature Enabled by Ca(BH4)2·2THF and BN Dual-Additives Strategy 40
4.1 Introduction 40
4.2 Experimental 41
4.2.1 Electrolyte Preparation 41
4.2.2 Synthesis of Na3V2(PO4)3 (NVP) 41
4.2.3 Electrochemistry 42
4.2.4 Preparation of Ca on Cu foam 42
4.3 Results and Discussion 42
4.4 Conclusion 45
4.5 References 53
Ⅴ. Additional Research: New Mn Electrochemistry for Rechargeable Aqueous Batteries: Promising Directions Based on Preliminary Results 55
5.1 Introduction 55
5.2 Experimental 56
5.2.1 Material synthesis 56
5.2.2 Material characterization 56
5.2.3 Electrochemical characterization 57
5.2.4 Diffusion barrier calculation 57
5.3. Results and Discussion 57
5.3.1 Aqueous Manganese Electrolyte and Anion/Concentration Effect 57
5.3.2 Manganese electro-deposition on various substrates 58
5.3.3 Manganese electro-deposition on various substrates 59
5.4 Conclusion 61
5.5 References 76
Ⅵ. Additional Research: π-Electrons Assisted Charge Storage in Fused-Rings Aromatic Carbonyl Electrodes for Aqueous Manganese-Ion Batteries 79
6.1 Introduction 79
6.2 Experimental 81
6.3 Results and Discussion 81
6.4 Conclusion 87
6.5 References 101

URI

https://scholar.dgist.ac.kr/handle/20.500.11750/59787
http://dgist.dcollection.net/common/orgView/200000889495

DOI

10.22677/THESIS.200000889495

Degree

Doctor

Department

Department of Energy Science and Engineering

Publisher

DGIST

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