Synthesis, characterization and aging behavior of silicate- and phosphate-based cathode materials for lithium-ion batteries:
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| Main Author: | |
|---|---|
| Format: | Thesis Book |
| Language: | English |
| Published: |
2013
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| Series: | Physikalische Chemie
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| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Physical Description: | VI, 260 S. Ill., graph. Darst. |
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| adam_text | CONTENTS
1 INTRODUCTION 1
1.1 MOTIVATION 1
1.2 WORK PLAN 4
1.3 LITHIUM-ION BATTERIES 5
1.3.1 GENERAL PRINCIPLE 5
1.3.2 ACTIVE MATERIALS 9
1.3.3 OVERCHARGE AND OVERDISCHARGE 14
1.4 SYNTHESIS OF CATHODE MATERIALS 17
1.4.1 SOLID-STATE SYNTHESIS 18
1.4.2 WET-CHEMICAL SYNTHESIS 23
1.5 ANALYTICAL METHODS 39
1.5.1 X-RAY DIFFRACTION 39
1.5.2 SCANNING ELECTRON MICROSCOPY AND ENERGY-DISPERSIVE X-RAY
SPECTROSCOPY 39
1.5.3 POTENTIAL SWEEP METHODS 41
1.5.4 CONSTANT CURRENT CYCLING 42
2 EXPERIMENTAL 45
2.1 SYNTHESIS OF POLYOXYANION CATHODE MATERIALS 47
2.1.1 SOLID-STATE SYNTHESIS 47
2.1.2 SOL-GEL SYNTHESIS 48
2.1.3 HYDROTHERMAL SYNTHESIS 49
2.1.4 MIXTURES OF LI2FESI04 AND LIFEP04 50
2.1.5 CARBON-COATING 50
2.1.6 LI2FESIC 4
POLYMORPHS 51
2.2 CELL MANUFACTURING 51
2.2.1 ELECTROLYTE PREPARATION 51
2.2.2 ELECTRODE PREPARATION 52
2.2.3 CELL ASSEMBLY 54
2.3 AGING OF LI2FESI04 54
2.4 ANALYTICAL METHODS 55
2.4.1 ELECTROCHEMICAL EVALUATION 55
2.4.2 INVESTIGATIONS OF SYNTHESIZED MATERIALS 58
2.4.3 INVESTIGATIONS OF AGED POWDER/ELECTROLYTE SYSTEMS 59
HTTP://D-NB.INFO/104335462X
II CONTENTS
3 SYNTHESIS OF LITHIUM METAL SILICATES 61
3.1 INTRODUCTION 61
3.2 SOLID-STATE METHOD 62
3.3 SOL-GEL METHOD 64
3.4 HYDROTHERMAL METHOD 66
3.4.1 HYDROTHERMAL TREATMENT 66
3.4.2 THE ANNEALING STEP 70
3.4.3 CARBON COATING 72
3.5 SUMMARY AND CONCLUSIONS 75
4 ELECTROCHEMICAL PERFORMANCE OF LITHIUM METAL SILICATES 79
4.1 INTRODUCTION 79
4.2 SOLID-STATE METHOD 80
4.3 SOL-GEL METHOD 83
4.4 HYDROTHERMAL METHOD 85
4.4.1 LITHIUM IRON SILICATE 85
4.4.2 LITHIUM MANGANESE SILICATE AND LITHIUM COBALT SILICATE ... 92
4.5 INFLUENCE OF THE CUT-OFF POTENTIAL ON THE LI2FESI04 PERFORMANCE . .
97
4.6 LI2FESIC 4
AS ANODE 103
4.7 SUMMARY AND CONCLUSIONS 106
5 OPTIMIZATION OF LITHIUM IRON SILICATE 109
5.1 INTRODUCTION 109
5.2 OPTIMIZATION OF HYDROTHERMAL REACTION PARAMETERS 110
5.2.1 INFLUENCE OF HYDROTHERMAL REACTION TIME 110
^ 5.2.2 INFLUENCE OF HYDROTHERMAL REACTION PRESSURE 114
5.2.3 INFLUENCE OF HYDROTHERMAL REACTION CONCENTRATION 117
5.3 DOPING AND MORPHOLOGY MODIFICATION 119
5.4 SUMMARY AND CONCLUSIONS 124
6 AGING OF LITHIUM IRON SILICATE 127
6.1 INTRODUCTION 127
6.2 INFLUENCE OF THE ELECTROLYTE DURING CYCLING 128
6.3 INFLUENCE OF THE SEPARATOR ON THE CYCLING BEHAVIOR OF LI2FESI04 . .
135
6.4 AGING BEHAVIOR OF LI2FESI04 IN FLUORINE-CONTAINING ELECTROLYTES . .
140
6.5 AGING BEHAVIOR OF LI2FESI04 IN FLUORINE-FREE ELECTROLYTES 150
6.6 AGING OF ELECTRODES DURING CYCLING 152
6.7 SUMMARY AND CONCLUSIONS 154
7 AGING BEHAVIOR OF LITHIUM IRON SILICATE POLYMORPHS 157
7.1 INTRODUCTION 157
7.2 AGING OF LI2FESI04 POLYMORPHS 158
7.3 SUMMARY AND CONCLUSIONS 166
CONTENTS III
8 OLIVINE CATHODES LIMP0
4
(M = FE, MN, CO) 167
8.1 INTRODUCTION 167
8.2 SOLID-STATE METHOD 168
8.3 SOL-GEL METHOD 174
8.4 HYDROTHERMAL METHOD 177
8.5 SPRAY-DRY METHOD 183
8.6 HYDROTHERMAL SYNTHESIS OF LIMNP04 AND LICOPC
4
189
8.7 SUMMARY AND CONCLUSIONS 194
9 MIXTURES OF LIFEP0
4
AND LI2FESI04 199
9.1 INTRODUCTION 199
9.2 HYDROTHERMAL SYNTHESIS 200
9.3 MELT CASTING OF LIFEP04/LI2FESI04 MIXTURES 203
9.4 SUMMARY AND CONCLUSIONS 213
10 OVERCHARGE ADDITIVES AS PROTECTING AGENTS IN LITHIUM ION BATTERIES
215
10.1 INTRODUCTION 215
10.2 N-HETEROCYCLIC-CARBENE-PFS ADDUCT AS OVERCHARGE ADDITIVE 217
10.3 FURTHER AMINOCARBENE ADDUCTS AS OVERCHARGE ADDITIVES 222
10.4 SUMMARY AND CONCLUSIONS 226
11 SUMMARY AND OUTLOOK 227
12 GLOSSARY 235
13 ACKNOWLEDGEMENTS 239
14 CURRICULUM VITAE 241
15 LIST OF; PUBLICATIONS 243
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| dewey-tens | 620 - Engineering and allied operations |
| discipline | Elektrotechnik / Elektronik / Nachrichtentechnik |
| format | Thesis Book |
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| spelling | Dippel, Christian 1984- Verfasser (DE-588)1041730896 aut Synthesis, characterization and aging behavior of silicate- and phosphate-based cathode materials for lithium-ion batteries vorgelegt von Christian Dippel 2013 VI, 260 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Physikalische Chemie Münster, Univ., Diss., 2013 Kurzfassung in dt. und engl. Sprache Lithium-Ionen-Akkumulator (DE-588)7681721-0 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Lithium-Ionen-Akkumulator (DE-588)7681721-0 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026864788&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Dippel, Christian 1984- Synthesis, characterization and aging behavior of silicate- and phosphate-based cathode materials for lithium-ion batteries Lithium-Ionen-Akkumulator (DE-588)7681721-0 gnd |
| subject_GND | (DE-588)7681721-0 (DE-588)4113937-9 |
| title | Synthesis, characterization and aging behavior of silicate- and phosphate-based cathode materials for lithium-ion batteries |
| title_auth | Synthesis, characterization and aging behavior of silicate- and phosphate-based cathode materials for lithium-ion batteries |
| title_exact_search | Synthesis, characterization and aging behavior of silicate- and phosphate-based cathode materials for lithium-ion batteries |
| title_full | Synthesis, characterization and aging behavior of silicate- and phosphate-based cathode materials for lithium-ion batteries vorgelegt von Christian Dippel |
| title_fullStr | Synthesis, characterization and aging behavior of silicate- and phosphate-based cathode materials for lithium-ion batteries vorgelegt von Christian Dippel |
| title_full_unstemmed | Synthesis, characterization and aging behavior of silicate- and phosphate-based cathode materials for lithium-ion batteries vorgelegt von Christian Dippel |
| title_short | Synthesis, characterization and aging behavior of silicate- and phosphate-based cathode materials for lithium-ion batteries |
| title_sort | synthesis characterization and aging behavior of silicate and phosphate based cathode materials for lithium ion batteries |
| topic | Lithium-Ionen-Akkumulator (DE-588)7681721-0 gnd |
| topic_facet | Lithium-Ionen-Akkumulator Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026864788&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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