Exfoliated graphene nanosheets as high-power anodes for lithium-ion batteries
| Autor: | Jae-Won Lee, Duc Luong Vu, Jea Uk Lee, Yeon Ju Kwon, Soon Chang Lee |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 010402 general chemistry Electrochemistry 01 natural sciences Lithium-ion battery Ion law.invention Inorganic Chemistry law Materials Chemistry Renewable Energy Sustainability and the Environment Graphene Process Chemistry and Technology Organic Chemistry 021001 nanoscience & nanotechnology Exfoliation joint 0104 chemical sciences Anode chemistry Chemical engineering Ceramics and Composites Lithium 0210 nano-technology Faraday efficiency |
| Zdroj: | Carbon Letters. 29:81-87 |
| ISSN: | 2233-4998 1976-4251 |
| Popis: | High-quality and solution processable graphene sheets are produced by a simple electrochemical exfoliation method and employed as a high-power anode for lithium-ion batteries (LIBs). The electrochemically exfoliated graphene (EEG) composed of a few layers of graphene sheets, have low oxygen content and high C/O ratio (~ 14.9). The LIBs with EEG anode exhibit ultrafast lithium storage and excellent cycling stability, but low initial efficiency. The excellent rate capability and cycling stability are attributed to the favorable structural and chemical properties of the EEG, but the large irreversibility needs to be overcome for practical applications. |
| Databáze: | OpenAIRE |
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