High performance lithium-ion and lithium–sulfur batteries using prelithiated phosphorus/carbon composite anode
| Autor: | Gongwei Wang, Dan Liu, Yang Luo, Tianyao Ding, Dong Zheng, Deyang Qu, Caleb John Abeggien, Feifei Li, Xiao-Qing Yang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Battery (electricity)
Materials science Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Cathode 0104 chemical sciences law.invention Anode X-ray photoelectron spectroscopy chemistry Chemical engineering law General Materials Science Lithium 0210 nano-technology Carbon Faraday efficiency |
| Zdroj: | Energy Storage Materials. 24:147-152 |
| ISSN: | 2405-8297 |
| DOI: | 10.1016/j.ensm.2019.08.025 |
| Popis: | Controlled chemical prelithiation of high capacity phosphorous/carbon (P/C) composite anode has been applied to develop advanced lithium-ion batteries (LIBs). The initial coulombic efficiency (CE) of P/C is significantly improved (up to 93% for fully-prelithiated P/C) owing to the formation of an artificial solid electrolyte interface (SEI) layer, which is characterized by SEM, Raman and XPS analyses. It ensures the application of P/C anode in real battery assembly. A partly-prelithiated P/C anode prepared by 20 s prelithiation treatment is paired with a LiCoO2 (LCO) cathode. The full cell delivers a highly reversible capacity of ~104 mAh g−1LCO at 1C rate and retains a CE close to 100% over 2000 cycles. Moreover, a fully-prelithiated P/C anode prepared by 10 min prelithiation treatment is paired with a high-capacity Li-free sulfur/carbon (S/C) cathode. This newly configured full cell delivers a good rate and cycling performance and a high energy density of 358 Wh kg−1. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect