Understanding the thermal runaway mechanism of lithium-ion batteries under low pressure and low temperature is paramount for their application and transportation in the aviation industry. This work investigated
Understanding the thermal runaway mechanism of lithium-ion batteries under low pressure and low temperature is paramount for their application and transportation in the aviation industry. This work investigated the coupling effects of ambient pressure (100 kPa, 70 kPa, 40 kPa) and ambient temperature (−15 °C, 0 °C, 25 °C) on
Currently, the most promising and effective approach is to significantly improve their air/water stability and electrochemical performance of the battery by constructing air/water-stable and good ion-conducting protective layers that
Liu et al. studied thermal runaway characteristics and failure criticality of massive ternary Li-ion battery piles in low-pressure storage and transport. It was found that
The past two decades have witnessed the wide applications of lithium-ion batteries (LIBs) in portable electronic devices, energy-storage grids, and electric vehicles (EVs) due to their unique advantages, such as high energy density, superior cycling durability, and low self-discharge [1,2,3].As shown in Fig. 1a, the global LIB shipment volume and market size
Liu et al. studied thermal runaway characteristics and failure criticality of massive ternary Li-ion battery piles in low-pressure storage and transport. It was found that lowering the pressure could promote an earlier and stronger safety venting and weaken the intensity of the exothermic reactions inside cells. Xie et al.
In this study, commercially available lithium ion batteries were examined experimentally at low pressures down to 25 kPa. Discharge curves and impedance measurements were performed at 23 °C for each pressure level.
Upon detecting an air-pressure variation signal, immediate measures such as charge stoppage effectively prevent the occurrence of battery TR. The average time interval between the warning signal and battery TR was 473 s. This research provides a new way to enhance the safety of lithium-ion battery energy-storage stations.
The average air-pressure value was 1002.45 hPa, the battery terminal voltage was 5.39 V, and the battery surface temperature was 69.1 °C.
Lithium-based rechargeable batteries, including lithium-ion batteries (LIBs) and lithium-metal based batteries (LMBs), are a key technology for clean energy storage systems to alleviate the energy crisis and air pollution [1], [2], [3].
Thermal runaway (TR) propagation in a large format lithium ion battery pack can cause disastrous consequences and thus deserves study on preventing it. A lumped thermal model that can predict and help prevent TR propagation in a battery module using 25 Ah LiNixCoyMnzO2 large format lithium ion batteries has been built in this paper. The TR
Lithium-ion batteries (LIBs) are widely used in electrochemical energy storage and in other fields. However, LIBs are prone to thermal runaway (TR) under abusive conditions, which may lead to fires and even explosion
In order to explore the thermal runaway (TR) law of overcharged lithium-ion batteries (LIBs) in aviation environment, the effects of air pressure on the TR behavior of
In order to explore the thermal runaway (TR) law of overcharged lithium-ion batteries (LIBs) in aviation environment, the effects of air pressure on the TR behavior of overcharged pouch LIBs with different charge–discharge rates are investigated. The results show that the increase of charge–discharge rate leads to the advance of
Electrochemical energy storage provides strong support for promoting green energy transformations and high-quality energy development [1].Among different energy-storage technologies, lithium-ion batteries have been widely used in many large-scale energy-storage stations [2], [3], [4], [5].However, megawatt-level energy-storage stations are composed of
Currently, the most promising and effective approach is to significantly improve their air/water stability and electrochemical performance of the battery by constructing air/water-stable and good ion-conducting protective layers that isolate them from air or moisture without impeding the conduction of Li ions.
In order to explore the thermal runaway (TR) law of overcharged lithium-ion batteries (LIBs) in aviation environment, the effects of air pressure on the TR behavior of overcharged pouch LIBs with
In this study, numerical simulation is employed to investigate the fire characteristics of lithium-ion battery storage container under varying ambient pressures. The findings reveal that the peak heat release rate of fires at normal pressure is significantly higher than at lower pressure.
In order to explore the thermal runaway (TR) law of overcharged lithium-ion batteries (LIBs) in aviation environment, the effects of air pressure on the TR behavior of overcharged pouch...
Lithium-based rechargeable batteries, including lithium-ion batteries (LIBs) and lithium-metal based batteries (LMBs), are a key technology for clean energy storage systems
As lithium-ion battery energy storage gains popularity and application at high altitudes, the evolution of fire risk in storage containers remains uncertain. In this study, numerical simulation is employed to investigate the fire characteristics of lithium-ion battery storage container under varying ambient pressures. The findings reveal that
In this study, numerical simulation is employed to investigate the fire characteristics of lithium-ion battery storage container under varying ambient pressures. The
The uncharacteristically low value for the strain based burst pressure measurement on this trial is attributed to the large negative indicated internal pressure before the final pressure build up. When considering the 2.00 MPa difference between the minimum (−1.58 MPa) and final indicated internal pressures for this trial, the pressure built up at the end of this
A sustainable low-carbon transition via electric vehicles will require a comprehensive understanding of lithium-ion batteries'' global supply chain environmental impacts. Here, we analyze the cradle-to-gate energy use and greenhouse gas emissions of current and future nickel-manganese-cobalt and lithium-iron-phosphate battery technologies. We
In order to explore the thermal runaway (TR) law of overcharged lithium-ion batteries (LIBs) in aviation environment, the effects of air pressure on the TR behavior of overcharged pouch...
Upon detecting an air-pressure variation signal, immediate measures such as charge stoppage effectively prevent the occurrence of battery TR. The average time interval
Lithium-ion battery (LIB) is widely used in the field of energy storage and conversion because of its greatly improved energy density, no memory effect, long cycle life and low environmental pollution [1,2,3,4].As the market for LIB technology continues to grow in every fields, the quantity of air transportation increase year by year.
The average air-pressure value was 1002.45 hPa, the battery terminal voltage was 5.39 V, and the battery surface temperature was 69.1 °C.
In this study, commercially available lithium ion batteries were examined experimentally at low pressures down to 25 kPa. Discharge curves and impedance measurements were performed at 23 °C for each pressure level.
The average detected air pressure was 999.29 hPa, and the surface temperature of the battery was 27.5 °C. At t = 3820 s, the battery safety valve was opened. (b–c) show that the battery emitted a large jet of smoke.
However, the ambient pressure, which is directly associated with the oxygen concentration, also shows a pronounced effect on the thermal runaway process. Chen et al. utilized in-situ calorimeters in Hefei (pressure, 100.8 kPa) and Lhasa (pressure, 64.3 kPa) to assess the thermal and fire hazards of lithium-ion batteries.
The electrochemical testing and structure changes results indicate that the damage of the anode and cathode materials, and the side reactions between the electrolytes and lithium are the main factors for the degradation of the thermal safety of the LIBs.
On the contrary, several authors have reported , , , , , , that an appropriate external pressure can benefit the lifespan and safety of both liquid- and solid-electrolyte based cells by improving the contact conditions and suppressing the growth of lithium dendrites [17, , , , , ].
In this work, the dynamic pressure conditions of 101 kPa, 70 kPa, and 40 kPa and ambient temperatures of −15 °C, 0 °C, and 25 °C were selected. Some critical parameters of lithium-ion batteries, such as temperature variation, mass loss, and heat distribution, were obtained.
Xie et al. experimentally studied the influence of cycling aging and ambient pressure on the thermal safety features of lithium-ion battery. It was concluded that both the TTR and TTR decrease with the increase of cycle number or decrease of external pressure.
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