Adhesive interlayer between active film and current collector for improving the performance of silicon anodes of Li-ion batteries
| Autor: | Jun-Hwan Ku, Jong Hwan Park, Jae-Man Choi, In-Hyuk Son, Ju Wan Lim |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Silicon
020209 energy General Chemical Engineering chemistry.chemical_element 02 engineering and technology Current collector 021001 nanoscience & nanotechnology Lithium-ion battery Electrical contacts Analytical Chemistry Anode stomatognathic diseases chemistry Electrode otorhinolaryngologic diseases 0202 electrical engineering electronic engineering information engineering Electrochemistry Adhesive Composite material 0210 nano-technology Faraday efficiency |
| Zdroj: | Journal of Electroanalytical Chemistry. 778:53-56 |
| ISSN: | 1572-6657 |
| DOI: | 10.1016/j.jelechem.2016.08.015 |
| Popis: | Here, we show that the capacity retention rate and Coulombic efficiency of silicon/graphite composite anodes are improved significantly when the electrode particles are strongly bonded to the current collector with the aid of a polymeric adhesive interlayer. The improved adhesion between the electrode film and the current collector, which was confirmed by the scratch test, effectively suppresses the evolution of the interphase as well as the charge-transfer resistance of the electrode during cycling. Thus, it can be concluded that maintaining a good electrical contact between the active material and the current collector is crucial for developing high-performance Si anodes for lithium-ion batteries. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect