Effect of cyclic phosphate additive in non-flammable electrolyte
| Autor: | Shigeaki Kasuya, Hitoshi Ota, Eiki Yasukawa, Asao Kominato, Wang-Jae Chun |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Ethylene
Renewable Energy Sustainability and the Environment Inorganic chemistry Energy Engineering and Power Technology Infrared spectroscopy Electrolyte Phosphate Electrochemistry Lithium-ion battery Trimethyl phosphate chemistry.chemical_compound chemistry X-ray photoelectron spectroscopy Electrical and Electronic Engineering Physical and Theoretical Chemistry |
| Zdroj: | Journal of Power Sources. :393-398 |
| ISSN: | 0378-7753 |
| Popis: | An additive in the trimethyl phosphate (TMP)-based non-flammable electrolyte was investigated in order to improve the poor reductive stability for the graphite anode. We found that the charge–discharge characteristic of the TMP-based non-flammable electrolyte was improved by adding ethylene ethyl phosphate (EEP) which had function of non-flammability. The solid electrolyte interface (SEI) layers formed on the graphite anode were analyzed with X-ray photoelectron spectroscopy (XPS) and Fourier transformation type infrared spectroscopy (FT-IR). Moreover, evolved gases in the battery were analyzed with gas chromatography/mass spectrometry (GC/MS) to understand the electrochemical reaction in SEI formation. We concluded that the SEI layers including phosphorus created by the EEP additive suppressed the reductive decomposition of TMP. |
| Databáze: | OpenAIRE |
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