Title

Degradation Mechanism of Lithium-ion Battery during Low-Temperature Over-discharge Cycling

DGIST Authors

Eunsae Kim ; Yong Min Lee ; Hongkyung Lee

Advisor

이용민

Co-Advisor(s)

Hongkyung Lee

Issued Date

2023

Awarded Date

2023-02-01

Citation

Eunsae Kim. (2023). Degradation Mechanism of Lithium-ion Battery during Low-Temperature Over-discharge Cycling. doi: 10.22677/THESIS.200000656909

Type

Thesis

Description

overdischarge,degradation,low temperature,cylindrical lithium-ion battery,21700

Table Of Contents

Ⅰ. Introduction 1
1.1 Overview 1
Ⅱ. Degradation Mechanism of Lithium-ion Battery during Low-Temperature Overdischarge Cycling 3
2.1 Introduction 3
2.2 Experiment 4
2.2.1 Specifications of LIB cells 4
2.2.2 Measurement of electrochemical and thermal properties 5
2.2.3 Post-mortem analysis 6
2.2.4 Development of thermo-electrochemical model 7
2.3 Results and discussion 12
2.3.1 Thermo-electrochemical behaviors of LIB cells during overdischarge cycling at 25 ℃ 12
2.3.2 Post-mortem analysis after cycling at 25 ℃ 17
2.3.3 Thermo-electrochemical behaviors of LIB cells during overdischarge cycling at -20 ℃ 22
2.3.4 Post-mortem analysis after cycling at -20 ℃ 26
2.3.5 thermo-electrochemical model at -20 ℃ 28
2.4 Conclusion 32
Reference 33
Summary (in Korean) 36

URI

http://hdl.handle.net/20.500.11750/45722
http://dgist.dcollection.net/common/orgView/200000656909

DOI

10.22677/THESIS.200000656909

Degree

Master

Department

Department of Energy Science and Engineering

Publisher

DGIST

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