Evaluation of composite flame-retardant electrolyte additives improvement on the safety performance of lithium-ion batteries

Wu, Zhihao; Wu, Yao; Tang, Yan; Jiang, Juncheng; Huang, An‐Chi

doi:10.1016/j.psep.2022.11.035

Cited by 34 publications

(8 citation statements)

References 49 publications

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“…The purpose is twofold. One is to derive the point of onset of decomposition, which is an important parameter to measure the hazard of BHTOOH; the other is to examine the reactivity of BHTOOH, the rate of decomposition of which can be observed by the results of TG-DTG [ 32 ]. As a comparison, The TG tests of BHT were also performed.…”

Section: Resultsmentioning

confidence: 99%

Thermal decomposition characteristics of BHT and its peroxide (BHTOOH)

Dai,

Liang,

Cheng

et al. 2024

BMC Chemistry

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Abstract2,6-Di-tert-butyl-4-methylphenol (BHT) is an excellent antioxidant that is easily oxidized to 2,6-di-tert-butyl-4-hydroperoxyl-4-methyl-2,5-cyclohexadienone (BHTOOH). For the safety of BHT production and usage, it is meaningful to study the thermal stability and decomposition properties of BHT and BHTOOH. In this paper, the thermal decomposition properties of BHT and BHTOOH were compared by the mini closed pressure vessel test (MCPVT) and differential scanning calorimetry (DSC). Their kinetics of thermal decomposition were studied using thermogravimetric analysis (TGA). The thermal decomposition products of BHT and BHTOOH were analyzed by gas chromatography-mass spectrometry (GC–MS). The results show that there was no significant change in temperature pressure when BHT was warmed up under a nitrogen atmosphere, indicating that BHT was stable within 400 K. The thermal decomposition reaction of BHTOOH was rapid with an initial reaction temperature of 375.2 K. The initial exothermic temperature (Ti) and heat release (QDSC) of DSC were 384.9 K and 865.0 J g−1, respectively. The apparent activation energies (Ea) for the thermal decomposition reactions of BHT and BHTOOH calculated by the Kissinger method were 151.8 kJ mol−1 and 66.07 kJ mol−1, respectively. The main decomposition products of BHT were isobutene and 2-tert-butyl-4-methylphenol. The thermal decomposition products of BHTOOH included BHT, 2,6-di-tert-butyl-4-ethylphenol, 3,5-di-tert-butyl-4-hydroxybenzaldehyde, 4,4′-(1,2-ethanediyl) bis [2,6-bis (1,1-dimethylethyl) phenol, etc. Based on the thermal decomposition behavior and products, the reaction pathway has been described. These results indicate that BHT is a potential thermal hazard during production, storage and application. For the safety of the chemical industry, the oxidation of BHT should be avoided.

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Section: Resultsmentioning

confidence: 99%

Thermal decomposition characteristics of BHT and its peroxide (BHTOOH)

Dai,

Liang,

Cheng

et al. 2024

BMC Chemistry

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“…In order to validate the results of the simulation model used, it is possible to consid future methods of non-linear regression [53] that can predict the behavior of the wa mist system in a confined environment. Moreover, the non-toxic nature of the mist ensures the protection of historical a facts, paintings, and delicate materials, preventing further loss.…”

Section: Discussionmentioning

confidence: 99%

Experimental Study on the Effectiveness of Water Mist Extinguishing Systems for Protecting Paintings in Art Gallery Museums: Developing an Initial Methodological Model

2023

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Determining the input parameters for the calibration of a water mist extinguishing system in a compartment is important for the evaluation of the performance of the design. Although there is a lot of research on the use of water mist, it is still difficult understand the behavior of the system in terms of safety of people and protection of things. In this study, we aimed to conduct an experimental analysis to evaluate the effectiveness of water mist extinguishing systems in protecting paintings in art gallery museums. We compared onsite tests in a compartment of an art gallery and a numerical analysis carried out with Fire Dynamics Simulator (FDS). Numerical analysis using FDS included the water-cooling effect and the heat power in the simulated environment and the calibration for a model was found by reproducing the onsite results. The temperature trend was monitored as an essential parameter for the protection of the paintings. The study aimed to not only verify the effectiveness of the water mist system but also investigate the reproducibility of real-scale conditions through a simulated environment. The most important result obtained is the possibility of using a simulated environment instead of real-scale tests in order to test water mist capabilities.

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“…The distribution of the 19 candidate points in CZ city was carefully planned to achieve comprehensive coverage. The placement of each point took into consideration various factors, such as population density gradients, the spatial distribution of high-risk zones, and the optimization of response times in relation to the city's diverse topography and road network configurations [43][44][45][46].…”

Section: Preliminary Optimization Of Fire Station Layoutmentioning

confidence: 99%

A Case Study for an Assessment of Fire Station Selection in the Central Urban Area

Huang,

Shu

2023

Safety

Self Cite

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With the continual acceleration of urbanization, the amount of urban infrastructure and the quality of public services are increasing in many cities. A pressing concern in this context is the growing problem of incompatible fire protection construction, indicating a need for urban fire stations with well-planned layouts. However, research on optimizing the layout and placement of fire stations by considering the various factors affecting station layouts is lacking. The current study addressed this gap by establishing an optimal fire station layout by using a geographic information system (GIS) and elucidated the trends of GIS application in firefighting and rescue operations. The study’s findings reveal the benefits of avoiding blind spots, enhancing the selection of fire station sites, and optimizing service coverage. Furthermore, this study optimized the layout of CZ city’s downtown fire stations, which could enhance CZ city’s firefighting capabilities.

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Evaluation of composite flame-retardant electrolyte additives improvement on the safety performance of lithium-ion batteries

Cited by 34 publications

References 49 publications

Thermal decomposition characteristics of BHT and its peroxide (BHTOOH)

Thermal decomposition characteristics of BHT and its peroxide (BHTOOH)

Experimental Study on the Effectiveness of Water Mist Extinguishing Systems for Protecting Paintings in Art Gallery Museums: Developing an Initial Methodological Model

A Case Study for an Assessment of Fire Station Selection in the Central Urban Area

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