Cellulose-ceramic composite flexible paper separator with improved wettability and flame retardant properties for lithium-ion batteries
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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Title |
Cellulose-ceramic composite flexible paper separator with improved wettability and flame retardant properties for lithium-ion batteries
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Creator |
Das, Mononita
Das, Pradip Sekhar Basu, Rajendra Nath Raja, Mir Wasim |
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Subject |
Electronics
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Description |
In quest of developing sustainable separator for lithium-ion batteries (LIBs), this research focuses on functionalization of low cost cellulose based commercial paper using duo-polymer and nano-SiO2 by designing a facile aqueous based industry friendly wet-coating process. Unlike commercial plastic based polyolefin separators (polypropylene/polyethylene), the developed paper separator shows superior thermal stability > 200 degrees C without dimensional shrinkage, excellent electrolyte wettability (147%) with zero contact angle, quicker electrolyte saturation and satisfactory mechanical strength (34.86-38.31 MPa). The electrochemical performance carried out in 2032 coin cells using fabricated paper separators shows comparable performance to that of commercial polypropylene (PP) based separator at different current densities of 0.05-0.4 mA/cm(2) with excellent columbic efficiency (> 96%) and good capacity retention on cycling. The developed separator is found to be compatible with most of the commercial electrodes (MCMB, -LiCoO2, -LiFePO4) used in today's LIBs. The functionalized cellulose-ceramic composite paper separator shows excellent flame retardant properties by offering an added safety features for its successful use in lithiumion batteries.
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Publisher |
Springer
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Date |
2022-12
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Type |
Article
PeerReviewed |
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Format |
application/pdf
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Identifier |
http://cgcri.csircentral.net/5437/1/mononita.pdf
Das, Mononita and Das, Pradip Sekhar and Basu, Rajendra Nath and Raja, Mir Wasim (2022) Cellulose-ceramic composite flexible paper separator with improved wettability and flame retardant properties for lithium-ion batteries. Cellulose, 29 (18). pp. 9899-9917. ISSN 0969-0239 |
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Relation |
http://cgcri.csircentral.net/5437/
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