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    A High-Ceramic-Loading LATP–PVDF–Al2O3 Composite Film for Lithium-Ion Batteries With Favorable Porous Microstructure and Enhanced Thermal Stability

    Source: Journal of Electrochemical Energy Conversion and Storage:;2024:;volume( 021 ):;issue: 004::page 41009-1
    Author:
    Gu, Yu
    ,
    Yuan, Chris
    DOI: 10.1115/1.4064352
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A separator plays a crucial role in a Li-ion battery to carry liquid electrolytes while preventing short-circuiting between electrodes. Nevertheless, conventional commercial separators often exhibit poor wettability and are prone to shrink at elevated temperatures due to their limited thermal stability. Herein, we report a heat-resistant LATP–PVDF–Al2O3 composite film with outstanding wetting performance. The thin film was prepared using ball mill mixing and tape-casting processes. Two solvents, NMP and glycerol, were applied to prepare the slurry, and a favorable microstructure in the film was created after drying. The ionic conductivity of the film was tested at 1.39 mS cm−1 when paired with liquid electrolyte, almost double that of the commercial counterpart. The high ceramic loading of 70% improved both the thermal shrinkage resistance and dendrite inhibition of the membrane. When assembled in an NMC half-cell, the cycling capacity retentions of 92.8% and 92.1% are achieved after 50 cycles at 0.5 C and 1 C, demonstrating its capability to be used in Li-ion batteries.
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      A High-Ceramic-Loading LATP–PVDF–Al2O3 Composite Film for Lithium-Ion Batteries With Favorable Porous Microstructure and Enhanced Thermal Stability

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4295457
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    • Journal of Electrochemical Energy Conversion and Storage

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    contributor authorGu, Yu
    contributor authorYuan, Chris
    date accessioned2024-04-24T22:33:57Z
    date available2024-04-24T22:33:57Z
    date copyright1/19/2024 12:00:00 AM
    date issued2024
    identifier issn2381-6872
    identifier otherjeecs_21_4_041009.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4295457
    description abstractA separator plays a crucial role in a Li-ion battery to carry liquid electrolytes while preventing short-circuiting between electrodes. Nevertheless, conventional commercial separators often exhibit poor wettability and are prone to shrink at elevated temperatures due to their limited thermal stability. Herein, we report a heat-resistant LATP–PVDF–Al2O3 composite film with outstanding wetting performance. The thin film was prepared using ball mill mixing and tape-casting processes. Two solvents, NMP and glycerol, were applied to prepare the slurry, and a favorable microstructure in the film was created after drying. The ionic conductivity of the film was tested at 1.39 mS cm−1 when paired with liquid electrolyte, almost double that of the commercial counterpart. The high ceramic loading of 70% improved both the thermal shrinkage resistance and dendrite inhibition of the membrane. When assembled in an NMC half-cell, the cycling capacity retentions of 92.8% and 92.1% are achieved after 50 cycles at 0.5 C and 1 C, demonstrating its capability to be used in Li-ion batteries.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleA High-Ceramic-Loading LATP–PVDF–Al2O3 Composite Film for Lithium-Ion Batteries With Favorable Porous Microstructure and Enhanced Thermal Stability
    typeJournal Paper
    journal volume21
    journal issue4
    journal titleJournal of Electrochemical Energy Conversion and Storage
    identifier doi10.1115/1.4064352
    journal fristpage41009-1
    journal lastpage41009-9
    page9
    treeJournal of Electrochemical Energy Conversion and Storage:;2024:;volume( 021 ):;issue: 004
    contenttypeFulltext
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