A5103215855- Advanced Battery Technologies Research
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Fire dynamics and safety research
- Combustion and Detonation Processes
- Flame retardant materials and properties
- Combustion and flame dynamics
- Fire effects on ecosystems
- Polymer crystallization and properties
- Reliability and Maintenance Optimization
- Lightning and Electromagnetic Phenomena
- Energetic Materials and Combustion
- Electrical Fault Detection and Protection
- Polymer Science and PVC
- Fire Detection and Safety Systems
- Education, Safety, and Science Studies
- Polymer Nanocomposites and Properties
- Rocket and propulsion systems research
Imperial College London
2020-2022
University of Science and Technology of China
2016-2022
The Lithium-ion battery (LIB) is an important technology for the present and future of energy storage, transport, consumer electronics. However, many LIB types display a tendency to ignite or release gases. Although statistically rare, fires pose hazards which are significantly different other fire in terms initiation route, rate spread, duration, toxicity, suppression. For first time, this paper collects analyses safety challenges faced by industries across sectors, compares them research...
The thermal runaway of Lithium-ion batteries (LIBs) is a fire hazard. Accelerating Rate Calorimetry (ARC) device commonly used to investigate parameters LIBs by assuming adiabatic conditions. However, this assumption ignores internal heat transfer within the cell and external at surface. In work, we conducted ARC experiments using prismatic LiCoO2 cells 50 mm in side study effect limitations. Results show that temperature difference between surface walls varies 0 1.5 ℃ before increases from...
Abstract Lithium-ion batteries (LIBs) are widely used as energy storage devices. However, a disadvantage of these is their tendency to ignite and burn, thereby creating fire hazard. Ignition LIBs can be triggered by abuse conditions (mechanical, electrical or thermal abuse) internal short circuit. In addition, ignition could also self-heating when stacked during transport. the open circuit has received little attention seems misunderstood in literature. This paper quantifies behaviour LIB...
Self-heating can cause the ignition of open-circuit Lithium-ion batteries. Current safety literature focuses on self-heating chemistry a single cell, ignoring effects heat transfer. However, large ensemble batteries has non-uniform temperature distribution and therefore is dominated by both transfer chemistry. This type importance when are stored for long periods time in ensembles but been rarely studied to date. paper studies effect state charge (SOC) behavior LiCoO2 prismatic cells. The...
Fire safety is a significant concern in aviation as well space travel and settlement, where reduced pressure raised oxygen concentration are used. Electrical wire has been identified major fire hazard these special applications. Besides the flame spread insulation, molten insulation surrounded by can drop due to gravity. Such dripping represents an important different type of risk but ignored. To better evaluate aircraft risk, we conduct laboratory experiments with thin nichrome copper...
Abstract Many thermal events have been reported during storage and transport of large numbers Lithium-ion batteries (LIBs), raising industry concerns research interests in its mechanisms. Apart from electrochemical failure, self-heating ignition, driven by poor heat transfer could also be a possible cause fire large-scale ensembles LIBs. The classical theories models ignition assume homogeneous lumped system, whereas LIBs involves complex geometry heterogeneous material composition due to...
Abstract Recent studies have shown that self-heating ignition is a possible cause of fires when Lithium-ion batteries (LIBs) are stacked in large numbers, for example, during storage. The understanding this type limited, and most current based on numerical modelling. different modelling tools found the literature differ their assumptions, capabilities, resources needed, may provide significantly predictions. This study presents benchmarking between COMSOL Multiphysics, which one prevailing...
Understanding the effects of pressure and oxygen concentration on flame spread behaviors electrical wires is crucial for establishing fire safety strategies plateau cities, aircraft, spacecraft. During combustion, polymeric coating first liquefies to form molten agglomerations, after which these droplets boil release combustible gases that propagate combustion process, brings a potential threat. To better evaluate this risk, polyethylene (PE) ethylene tetrafluoroethylene (ETFE)-insulated...
The effects of supply-exhaust ratio on smoke exhaust efficiency in a large machinery space were studied numerically. simulation model used was certain naval ship and two types fire source are provided. Various parameters, such as the layer height, concentration gas temperature considered. Results show that mechanical system could decrease concentration, increase visibility fire. With ratio, control is improved. Considering both consume energy cost for typical space, value about 70% suggested...