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    Microstructural Analysis of the Effects of Thermal Runaway on Li-Ion and Na-Ion Battery Electrodes

    Source: Journal of Electrochemical Energy Conversion and Storage:;2018:;volume( 015 ):;issue: 001::page 11010
    Author:
    Robinson, James B.
    ,
    Finegan, Donal P.
    ,
    Heenan, Thomas M. M.
    ,
    Smith, Katherine
    ,
    Kendrick, Emma
    ,
    Brett, Daniel J. L.
    ,
    Shearing, Paul R.
    DOI: 10.1115/1.4038518
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Thermal runaway is a phenomenon that occurs due to self-sustaining reactions within batteries at elevated temperatures resulting in catastrophic failure. Here, the thermal runaway process is studied for a Li-ion and Na-ion pouch cells of similar energy density (10.5 Wh, 12 Wh, respectively) using accelerating rate calorimetry (ARC). Both cells were constructed with a z-fold configuration, with a standard shutdown separator in the Li-ion and a low-cost polypropylene (PP) separator in the Na-ion. Even with the shutdown separator, it is shown that the self-heating rate and rate of thermal runaway in Na-ion cells is significantly slower than that observed in Li-ion systems. The thermal runaway event initiates at a higher temperature in Na-ion cells. The effect of thermal runaway on the architecture of the cells is examined using X-ray microcomputed tomography, and scanning electron microscopy (SEM) is used to examine the failed electrodes of both cells. Finally, from examination of the respective electrodes, likely due to the carbonate solvent containing electrolyte, it is suggested that thermal runaway in Na-ion batteries (NIBs) occurs via a similar mechanism to that reported for Li-ion cells.
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      Microstructural Analysis of the Effects of Thermal Runaway on Li-Ion and Na-Ion Battery Electrodes

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4254123
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    • Journal of Electrochemical Energy Conversion and Storage

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    contributor authorRobinson, James B.
    contributor authorFinegan, Donal P.
    contributor authorHeenan, Thomas M. M.
    contributor authorSmith, Katherine
    contributor authorKendrick, Emma
    contributor authorBrett, Daniel J. L.
    contributor authorShearing, Paul R.
    date accessioned2019-02-28T11:14:03Z
    date available2019-02-28T11:14:03Z
    date copyright12/6/2017 12:00:00 AM
    date issued2018
    identifier issn2381-6872
    identifier otherjeecs_015_01_011010.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4254123
    description abstractThermal runaway is a phenomenon that occurs due to self-sustaining reactions within batteries at elevated temperatures resulting in catastrophic failure. Here, the thermal runaway process is studied for a Li-ion and Na-ion pouch cells of similar energy density (10.5 Wh, 12 Wh, respectively) using accelerating rate calorimetry (ARC). Both cells were constructed with a z-fold configuration, with a standard shutdown separator in the Li-ion and a low-cost polypropylene (PP) separator in the Na-ion. Even with the shutdown separator, it is shown that the self-heating rate and rate of thermal runaway in Na-ion cells is significantly slower than that observed in Li-ion systems. The thermal runaway event initiates at a higher temperature in Na-ion cells. The effect of thermal runaway on the architecture of the cells is examined using X-ray microcomputed tomography, and scanning electron microscopy (SEM) is used to examine the failed electrodes of both cells. Finally, from examination of the respective electrodes, likely due to the carbonate solvent containing electrolyte, it is suggested that thermal runaway in Na-ion batteries (NIBs) occurs via a similar mechanism to that reported for Li-ion cells.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleMicrostructural Analysis of the Effects of Thermal Runaway on Li-Ion and Na-Ion Battery Electrodes
    typeJournal Paper
    journal volume15
    journal issue1
    journal titleJournal of Electrochemical Energy Conversion and Storage
    identifier doi10.1115/1.4038518
    journal fristpage11010
    journal lastpage011010-9
    treeJournal of Electrochemical Energy Conversion and Storage:;2018:;volume( 015 ):;issue: 001
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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