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    Combined Effects of Citric Acid and Ascorbic Acid Used As Low-Temperature Surface Modifiers to Enhance the Cyclability of Si Anode in an Li-Ion Battery

    Source: Journal of Electrochemical Energy Conversion and Storage:;2022:;volume( 020 ):;issue: 001::page 11001
    Author:
    Chang, Hung-Ying;Brahma, Sanjaya;Hou, Shang-Chieh;Chang, Chia-Chin;Huang, Jow-Lay
    DOI: 10.1115/1.4054130
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: We successfully achieved surface modification of Si at a low temperature (150 °C) by using citric acid and ascorbic acid as surface modifiers and enhanced the electrochemical performance of a Si-based anode. A simple planetary ball-milling process followed by heat treatment over a range of temperatures (150–500 °C) was used to carry out the surface modification. This important investigation confirmed that the heat treatment temperature significantly affected the molecular structure in the modification layer, and its thickness led to a higher discharge capacity for low-temperature-modified Si compared to that in other series of high-temperature-annealed samples. Among all the surface-modified Si samples, the electrochemical performance using the M-Si 150 °C as the anode material achieved an excellent capacity of 1787 mAh g−1 after 100 charge/discharge cycles with a 75.8% retention. The same device delivered excellent rate capability, with a capacity of ∼1012 mAh g−1 (1 C) and 593 mAh g−1 (2 C) at the high-current rate. The capacity regained to ∼2012 mAh g−1 with the reversal of the current rate to 0.1 C, with a very high retention of 103%, indicating significantly enhanced strength of the modified Si anode in a lithium-ion battery.
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      Combined Effects of Citric Acid and Ascorbic Acid Used As Low-Temperature Surface Modifiers to Enhance the Cyclability of Si Anode in an Li-Ion Battery

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    contributor authorChang, Hung-Ying;Brahma, Sanjaya;Hou, Shang-Chieh;Chang, Chia-Chin;Huang, Jow-Lay
    date accessioned2022-12-27T23:13:44Z
    date available2022-12-27T23:13:44Z
    date copyright5/9/2022 12:00:00 AM
    date issued2022
    identifier issn2381-6872
    identifier otherjeecs_20_1_011001.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4288162
    description abstractWe successfully achieved surface modification of Si at a low temperature (150 °C) by using citric acid and ascorbic acid as surface modifiers and enhanced the electrochemical performance of a Si-based anode. A simple planetary ball-milling process followed by heat treatment over a range of temperatures (150–500 °C) was used to carry out the surface modification. This important investigation confirmed that the heat treatment temperature significantly affected the molecular structure in the modification layer, and its thickness led to a higher discharge capacity for low-temperature-modified Si compared to that in other series of high-temperature-annealed samples. Among all the surface-modified Si samples, the electrochemical performance using the M-Si 150 °C as the anode material achieved an excellent capacity of 1787 mAh g−1 after 100 charge/discharge cycles with a 75.8% retention. The same device delivered excellent rate capability, with a capacity of ∼1012 mAh g−1 (1 C) and 593 mAh g−1 (2 C) at the high-current rate. The capacity regained to ∼2012 mAh g−1 with the reversal of the current rate to 0.1 C, with a very high retention of 103%, indicating significantly enhanced strength of the modified Si anode in a lithium-ion battery.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleCombined Effects of Citric Acid and Ascorbic Acid Used As Low-Temperature Surface Modifiers to Enhance the Cyclability of Si Anode in an Li-Ion Battery
    typeJournal Paper
    journal volume20
    journal issue1
    journal titleJournal of Electrochemical Energy Conversion and Storage
    identifier doi10.1115/1.4054130
    journal fristpage11001
    journal lastpage11001_9
    page9
    treeJournal of Electrochemical Energy Conversion and Storage:;2022:;volume( 020 ):;issue: 001
    contenttypeFulltext
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