Title Page
요약
ABSTRACT
Contents
1. Introduction 14
2. Experimental 16
2.1. Preparation of binder-free electrode 16
2.1.1. Acid treatment of MWCNT 16
2.1.2. Surface treatment of aluminum 16
2.1.3. Electrophoretic deposition 17
2.2. Characterization 19
2.2.1. Physical characterization 19
2.2.2. Electrochemical characterization 19
3. Results and discussion 21
3.1. Pretreatment of aluminum current collector 21
3.2. Acid treatment of MWCNT 24
3.3. Electrode perpared by EPD and conventional method 24
3.4. Cell performance 31
4. Conclusions 36
5. References 37
Figure 2.1.1. Schematic illustration of an electrophoretic deposition system and cell 18
Figure 3.1.1. SEM images of electrochemically etched aluminum; (a) as-is, after NaOH pretreatment during (b) 1 min, (c) 1 min 30 sec, (d) 2 min. 22
Figure 3.1.2. Optical image of electrode surface before and after peel test; (a) pristine aluminum and (b) surface-treated aluminum 23
Figure 3.2.1. FTIR spectra of MWCNT; (a) pristine MWCNT, (b) acid treated MWCNT. 26
Figure 3.2.2. SEM image and Optical image of EPD electrode using (a) pristine MWCNT, (b) acid treated MWCNT. 27
Figure 3.2.3. Elemental mapping of EPD electrode using (a) acid-treated MWCNT and (b) pristine MWCNT 28
Figure 3.3.1. SEM image of cathode fabricated via (a) EPD without binder, (b-c) conventional method with binder. 29
Figure 3.3.2. EDX mapping of (a) EPD electrode, (b) conventional electrode 30
Figure 3.4.1. CV curve of (a) EPD electrode, (b) conventional electrode using acid-treated MWCNT and (c) super P as conductive agent. All the... 33
Figure 3.4.2. Nyquist plot of EPD electrode and conventional electrode using acid-treated MWCNT 34
Figure 3.4.3. cycle test of (a) LFP electrode and (b) EPD electrode, (c) voltage profile of EPD electrode. 35