Investigations on novel electrolytes, solvents and SEI additives for use in lithium-ion batteries : systematic electrochemical characterization and detailed analysis by spectroscopic methods
| Autor: | Peter Sartori, Martin Winter, Johannes Kasnatscheew, Christian Schreiner, Sascha Nowak, Romek Ansgar Müller, Lisa Krämer, Miriam Kunze, Alexandra Lex-Balducci, Philipp Niehoff, Patrick Murmann, Isidora Cekic-Laskovic, Stefano Passerini, Gerd-Volker Röschenthaler, Philipp Isken, Nikolai Ignatiev, René Schmitz, Raphael Wilhelm Schmitz |
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| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
Inorganic chemistry Chemie chemistry.chemical_element Salt (chemistry) Electrolyte Conductivity Condensed Matter Physics Electrochemistry Adiponitrile chemistry.chemical_compound chemistry Propylene carbonate General Materials Science Lithium Physical and Theoretical Chemistry Cyclic voltammetry |
| Popis: | Electrolyte solutions have vital function in lithium-ion batteries. Due to their modular composition, there is a broad variety of electrolyte component combinations. In this work, we present electrochemical results on newly investigated electrolyte solution components. The standard electrolyte salt in commercial batteries, LIPF 6 , was replaced by new imide and sulfonate anion based salts, with enhanced stability. The use of propylene carbonate was enabled by the application of new SEI forming electrolyte additives. Electrolyte solvents, such as adiponitrile and γ-butyrolactone were investigated in combination with LiBF 4 as electrolyte salt. In order to evaluate these materials, various electrochemical techniques like galvanostatic cycling, conductivity and electrochemical stability window detection, cyclic voltammetry, etc. were applied. Furthermore, the electrode/electrolyte interfaces and interphases were studied via spectroscopic and spectrometric techniques. |
| Databáze: | OpenAIRE |
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