Operando monitoring of thermal runaway in commercial lithium-ion cells via advanced lab-on-fiber technologies
University of Science and Technology of China · Jinan University · +3 more institutions
Abstract
Operando monitoring of complex physical and chemical activities inside rechargeable lithium-ion batteries during thermal runaway is critical to understanding thermal runaway mechanisms and giving early warning of safety-related failure. However, most existing sensors cannot survive during such extremely hazardous thermal runaway processes (temperature up to 500 °C accompanied by fire and explosion). To address this, we develop a compact and multifunctional optical fiber sensor (12 mm in length and 125 µm in diameter) capable of insertion into commercial 18650 cells to continuously monitor internal temperature and pressure effects during cell thermal runaway. We observe a stable and reproducible correlation…
Citation impact
- FWCI
- 35.68
- Percentile
- 100%
- References
- 51
Authors
15Topics & keywords
- Thermal runaway
- Lithium (medication)
- Materials science
- Ion
- Fiber
- Thermal
- Nanotechnology
- Optoelectronics