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Electrochemical behaviour of optically transparent, nanoporous LiFePO4 cathodes grown via RF magnetron sputtering.

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Title: Electrochemical behaviour of optically transparent, nanoporous LiFePO4 cathodes grown via RF magnetron sputtering.
Authors: Karthikeyan, R.1,2 (AUTHOR), Cherian, Christie Thomas2 (AUTHOR) christie.cherian@duk.ac.in, Fernandes, Rohan Pascal1 (AUTHOR) rohanpascal.fernandes@christuniversity.in
Source: Journal of Solid State Electrochemistry. May2026, Vol. 30 Issue 5, p2051-2061. 11p.
Subjects: Cathodes, Magnetron sputtering, Band gaps, Electrochemical analysis, Energy storage
Abstract: The rapid growth of smart technology has accelerated the need for compact and durable microbatteries. Fabrication of thin-film microbatteries is effective to address the requirements of the evolving technology. In the present work, pristine, optically transparent, nanoporous LiFePO4 (LFP) is synthesized via RF magnetron sputtering. The effect of nanoporosity on the electrochemical properties and charge storage mechanisms of LFP is explored. The galvanostatic studies revealed an initial discharge capacity of 32 µAh cm–2 μm–1 and stabilised to 17.5 µAh cm–2 μm–1 after 100 cycles. The capacity fading can be attributed to the increased formation of SEI caused by the enhanced interaction between the cathode and electrolyte due to the nanoporosity. The films demonstrate good rate capability and reversibility. Optical studies reveal a bandgap of 3.74 eV, highlighting the potential for usage in optically transparent microbatteries. This work provides key insights into the intrinsic electrochemical behaviour of pristine nanoporous LFP thin films, creating a pathway for its implementation in microbatteries. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Solid State Electrochemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Electrochemical behaviour of optically transparent, nanoporous LiFePO<subscript>4</subscript> cathodes grown via RF magnetron sputtering.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Solid+State+Electrochemistry%22">Journal of Solid State Electrochemistry</searchLink>. May2026, Vol. 30 Issue 5, p2051-2061. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Cathodes%22">Cathodes</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetron+sputtering%22">Magnetron sputtering</searchLink><br /><searchLink fieldCode="DE" term="%22Band+gaps%22">Band gaps</searchLink><br /><searchLink fieldCode="DE" term="%22Electrochemical+analysis%22">Electrochemical analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+storage%22">Energy storage</searchLink>
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  Data: The rapid growth of smart technology has accelerated the need for compact and durable microbatteries. Fabrication of thin-film microbatteries is effective to address the requirements of the evolving technology. In the present work, pristine, optically transparent, nanoporous LiFePO4 (LFP) is synthesized via RF magnetron sputtering. The effect of nanoporosity on the electrochemical properties and charge storage mechanisms of LFP is explored. The galvanostatic studies revealed an initial discharge capacity of 32 µAh cm–2 μm–1 and stabilised to 17.5 µAh cm–2 μm–1 after 100 cycles. The capacity fading can be attributed to the increased formation of SEI caused by the enhanced interaction between the cathode and electrolyte due to the nanoporosity. The films demonstrate good rate capability and reversibility. Optical studies reveal a bandgap of 3.74 eV, highlighting the potential for usage in optically transparent microbatteries. This work provides key insights into the intrinsic electrochemical behaviour of pristine nanoporous LFP thin films, creating a pathway for its implementation in microbatteries. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Journal of Solid State Electrochemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10008-026-06561-9
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 2051
    Subjects:
      – SubjectFull: Cathodes
        Type: general
      – SubjectFull: Magnetron sputtering
        Type: general
      – SubjectFull: Band gaps
        Type: general
      – SubjectFull: Electrochemical analysis
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      – SubjectFull: Energy storage
        Type: general
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      – TitleFull: Electrochemical behaviour of optically transparent, nanoporous LiFePO4 cathodes grown via RF magnetron sputtering.
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            – D: 01
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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