| 作者简历 | 第7-9页 |
| 摘要 | 第9-12页 |
| ABSTRACT | 第12-15页 |
| CHAPTER 1 INTRODUCTION | 第19-76页 |
| 1.1 BACKGROUND | 第19-22页 |
| 1.2 A BRIEF OVERVIEW OF THE LITHIUM SULFUR BATTERY | 第22-29页 |
| 1.2.1 Historical development of the lithium sulfur battery | 第22-23页 |
| 1.2.2 The structure and working principle of the lithium sulfur battery | 第23-25页 |
| 1.2.3 The working mechanism of the lithium sulfur battery using an ether-based liquid electrolyte | 第25-27页 |
| 1.2.4 The major problems in the lithium sulfur batteries | 第27-29页 |
| 1.3 THE RECENT ADVANCES IN LITHIUM SULFUR BATTERIES | 第29-72页 |
| 1.3.1 The progress of the cathodes of the lithium sulfur batteries | 第29-48页 |
| 1.3.2 The progress of the novel battery configurations for Li-S systems | 第48-59页 |
| 1.3.3 The progress of the binders for fabricating the sulfur electrode | 第59-63页 |
| 1.3.4 The progress of the electrolytes for lithium sulfur batteries | 第63-68页 |
| 1.3.5 The progress of stabilizing the lithium metal anode | 第68-72页 |
| 1.4 THE PURPOSE AND CONTENT OF THE RESEARCH | 第72-76页 |
| CHAPTER 2 APPLICATION OF DIATOMITE AS AN EFFECTIVE POLYSULFIDES ADSORBENT FOR LITHIUM SULFUR BATTERIES | 第76-89页 |
| 2.1 INTRODUCTION | 第76-77页 |
| 2.2 EXPERIMENTAL | 第77-79页 |
| 2.2.1 Materials | 第77页 |
| 2.2.2 Preparation of sulfur cathode materials | 第77页 |
| 2.2.3 Quantitative determination of the adsorption capacity of diatomite and acetylene black for polysulfides | 第77-78页 |
| 2.2.4 Material characterization | 第78页 |
| 2.2.5 Electrochemical measurements | 第78-79页 |
| 2.3 RESULTS AND DISCUSSION | 第79-88页 |
| 2.3.1 Physical properties of diatomite | 第79-80页 |
| 2.3.2 The adsorption capability of the diatomite and acetylene black for Li_2S_6 solution | 第80-81页 |
| 2.3.3 Physical properties of the S-AB and S-DM-AB composites | 第81-82页 |
| 2.3.4 Electrochemical properties of S-AB and S-DM-AB cathodes | 第82-87页 |
| 2.3.5 Observation of the cathodes and anodes of the cells with S-AB and S-DM-AB cathodes after 100 cycles at 0.5 C | 第87-88页 |
| 2.4 CONCLUSIONS | 第88-89页 |
| CHAPTER 3 EXPLORE THE INFLUENCE OF COVERAGE PERCENTAGE OF SULFUR ELECTRODE ON THE CYCLE PERFORMANCE OF LITHIUM SULFUR BATTERIES | 第89-106页 |
| 3.1 INTRODUCTION | 第89-90页 |
| 3.2 EXPERIMENTAL | 第90-93页 |
| 3.2.1 Materials | 第90页 |
| 3.2.2 Preparation of the pristine sulfur electrode | 第90-91页 |
| 3.2.3 Preparation of the nano-Al_2O_3 incorporated composite film and the sealed sulfur electrode | 第91页 |
| 3.2.4 Cell assembly | 第91-92页 |
| 3.2.5 Electrochemical measurements | 第92页 |
| 3.2.6 Estimation of the electrochemical double layer capacitance (EDLC) of the nano-Al_2O_3 incorporated composite film | 第92-93页 |
| 3.2.7 Materials characterization | 第93页 |
| 3.3 RESULTS AND DISCUSSION | 第93-105页 |
| 3.3.1 XRD and TGA results | 第93-94页 |
| 3.3.2 Comparison of battery performances | 第94-98页 |
| 3.3.3 Electrochemical measurements of the cell with sealed sulfur electrode | 第98-100页 |
| 3.3.4 Revealing the blocking effect of the sealed configuration | 第100-104页 |
| 3.3.5 Insights into the sealing strategy | 第104-105页 |
| 3.4 CONCLUSIONS | 第105-106页 |
| CHAPTER 4 IMPROVED CYCLING STABILITY OF SULFUR ELECTRODE BY A LI-NAFION-SUPPORTED SEALED CONFIGURATION | 第106-122页 |
| 4.1 INTRODUCTION | 第106-107页 |
| 4.2 EXPERIMENTAL | 第107-111页 |
| 4.2.1 Materials | 第107-108页 |
| 4.2.2 Preparation of the lithiated Nafion membrane and H-type Nafion membrane | 第108页 |
| 4.2.3 Preparation of the pristine sulfur electrode | 第108页 |
| 4.2.4 Preparation of the Li-Nafion-supported composite film and the Li-Nafion-sealed sulfur electrode | 第108-109页 |
| 4.2.5 Cell assembly | 第109页 |
| 4.2.6 Characterizations and measurements | 第109-111页 |
| 4.3 RESULTS AND DISCUSSION | 第111-120页 |
| 4.3.1 FTIR spectra comparison between the casted H-type Nafion and Li-Nafion membranes | 第111-112页 |
| 4.3.2 Measuring the lithium ion transference number of the casted Li-Nafion membrane | 第112-113页 |
| 4.3.3 Morphology and element distribution of the Li-Nafion-supported composite film | 第113-114页 |
| 4.3.4 The physical characterizations of the sulfur cathode material | 第114-115页 |
| 4.3.5 Measuring the electrochemical double layer capacitance (EDLC) | 第115页 |
| 4.3.6 The electrochemical performance of the batteries | 第115-119页 |
| 4.3.7 Comparison of the cycling performances at 0.1 C between the Li-Nafion-supported and nano-Al_2O_3-supported sealed configuration | 第119-120页 |
| 4.4 CONCLUSIONS | 第120-122页 |
| CHAPTER 5 A SAFE AND LONG LIFE LITHIUM METAL-SULFUR BATTERY ENABLED BY A SINGLE ION CONDUCTING BATTERY STRUCTURE | 第122-143页 |
| 5.1 INTRODUCTION | 第122-124页 |
| 5.2 EXPERIMENTAL | 第124-131页 |
| 5.2.1 Materials | 第124页 |
| 5.2.2 Synthesis | 第124-127页 |
| 5.2.3 Preparation | 第127-128页 |
| 5.2.4 Cells assemblies | 第128-129页 |
| 5.2.5 Characterizations and measurements | 第129-131页 |
| 5.3 RESULTS AND DISCUSSION | 第131-141页 |
| 5.3.1 Structural analyses of precursors and grafted polymer | 第131-133页 |
| 5.3.2 Structural analyses of S@PAN | 第133-135页 |
| 5.3.3 Physical & Electrochemical properties of the blend polymer electrolyte membrane | 第135-136页 |
| 5.3.4 "Li | electrolyte | Li" cells for galvanostatic cycling tests | 第136-141页 |
| 5.4 CONCLUSIONS | 第141-143页 |
| CHAPTER 6 CONCLUSIONS | 第143-146页 |
| ACKNOWLEDGEMENTS | 第146-147页 |
| REFERENCES | 第147-162页 |
