2021
DOI: 10.1039/d1ma00343g
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Fabrication of a microcapsule extinguishing agent with a core–shell structure for lithium-ion battery fire safety

Abstract: Safety issues limit the large-scale application of lithium-ion batteries. In this work, a new type of N-H-microcapsule fire extinguishing agent is prepared by using melamine-urea-formaldehyde resin as shell material, perfluoro(2-methyl-3-pentanone)...

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Cited by 23 publications
(13 citation statements)
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“…In the TGA results, DL-MC exhibited a minor loss up to about 100 °C and sequential sharp losses ranging from 100 to 150 °C. This means that the core substance (MNFB) is released mainly at a specific temperature range from 100 to 150 °C [ 8 , 9 , 12 , 13 ]. The small decrease in DL-MC around 100 °C was attributed to the evaporation of water (ca.…”
Section: Resultsmentioning
confidence: 99%
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“…In the TGA results, DL-MC exhibited a minor loss up to about 100 °C and sequential sharp losses ranging from 100 to 150 °C. This means that the core substance (MNFB) is released mainly at a specific temperature range from 100 to 150 °C [ 8 , 9 , 12 , 13 ]. The small decrease in DL-MC around 100 °C was attributed to the evaporation of water (ca.…”
Section: Resultsmentioning
confidence: 99%
“…However, these eco-friendly fire extinguishing agents are difficult to store and utilize due to the low vaporization temperature and high vapor pressure [ 4 , 5 , 6 ]. In order to overcome these disadvantages, methods of using an aerosol system [ 7 ] and encapsulating the fire extinguishing agent with a polymeric material have been proposed [ 8 , 9 , 10 , 11 , 12 , 13 ]. In particular, microencapsulation of fire extinguishing agents has been studied recently for the prevention and suppression of fire in lithium-ion batteries and similar energy storage systems.…”
Section: Introductionmentioning
confidence: 99%
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“…Research on microcapsule extinguishing agents using Novec 1230 by 3M is being performed worldwide. Zhang et al [6] studied fire extinguishing in a lithium-ion battery using a microcapsule fire extinguishing agent with a core@shell structure. Lee et al [4,5] studied the fire extinguishing adaptability of microcapsules in small-space fires such as distribution boards.…”
Section: Theoretical Backgroundmentioning
confidence: 99%
“…By the application of microcapsule technology, phase change materials are wrapped with organic or inorganic wall materials to make particles with stable coreshell structure. [24][25][26][27][28] In the previous work, we successfully developed a composite fire extinguishing agent with perfluoro(2-methyl-3-pentanone) (Novec1230) and heptafluorocyclopentane (HFC) as the core, and combined with microcapsule technology to prepared a new type of microcapsule fire extinguishing agent based on the theory of thermal runaway process of LiBs. According to the test results, when the ratio of HFC/Novec1230 is 1:1, Novec 1230 and HFC composite fire extinguishing agents can reduce the heating temperature of aluminum plate from 300 • C to below 150 • C in 100 seconds.…”
Section: Introductionmentioning
confidence: 99%