A biodegradable nano‐composite membrane for high‐safety and durable lithium‐ion batteries
Abstract As a key component of lithium‐ion batteries (LIBs), separator plays a crucial role in the performance and safety of LIBs. In this paper, a cellulose‐based porous membrane modified by nano CaCO3 is prepared conveniently by electrospinning. The membrane exhibits rich fibrous porous networks a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-05-01
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| Series: | Micro & Nano Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/mna2.12168 |
| _version_ | 1797820363698077696 |
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| author | Ting Wang Na Liu Hui Zhou Ming‐Jun Chen |
| author_facet | Ting Wang Na Liu Hui Zhou Ming‐Jun Chen |
| author_sort | Ting Wang |
| collection | DOAJ |
| description | Abstract As a key component of lithium‐ion batteries (LIBs), separator plays a crucial role in the performance and safety of LIBs. In this paper, a cellulose‐based porous membrane modified by nano CaCO3 is prepared conveniently by electrospinning. The membrane exhibits rich fibrous porous networks and uniform distribution of nanoparticles. Strengthened by CaCO3, the tensile strength of the cellulose porous membrane elevates from 4.7 ± 0.4 MPa to 7.7 ± 0.7 MPa. Besides, the modified membranes possess improved thermal stability and can maintain their original size after treatment at 150°C and 180°C. Also, the electrolyte uptake of cellulose/CaCO3 membrane is 73% higher than that of the pure cellulose membrane. Thus, the ionic conductivity of membrane achieves 1.08 mS cm−1 and the electrochemical window is about 4.8 V, which meets the practical requirements of LIBs. Significantly, with LiFePO4/Li battery this membrane can run for 230 cycles with a capacity retention of 97.4% and a discharge capacity of 149.0 mAh g−1, demonstrating the huge potential for high safety and next‐generation LIBs. |
| first_indexed | 2024-03-13T09:37:17Z |
| format | Article |
| id | doaj.art-4eb7d26029d347fb8abfe0b219a71055 |
| institution | Directory Open Access Journal |
| issn | 1750-0443 |
| language | English |
| last_indexed | 2024-03-13T09:37:17Z |
| publishDate | 2023-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Micro & Nano Letters |
| spelling | doaj.art-4eb7d26029d347fb8abfe0b219a710552023-05-25T08:42:27ZengWileyMicro & Nano Letters1750-04432023-05-01185n/an/a10.1049/mna2.12168A biodegradable nano‐composite membrane for high‐safety and durable lithium‐ion batteriesTing Wang0Na Liu1Hui Zhou2Ming‐Jun Chen3School of Science Xihua University Chengdu ChinaSchool of Science Xihua University Chengdu ChinaSchool of Science Xihua University Chengdu ChinaSchool of Science Xihua University Chengdu ChinaAbstract As a key component of lithium‐ion batteries (LIBs), separator plays a crucial role in the performance and safety of LIBs. In this paper, a cellulose‐based porous membrane modified by nano CaCO3 is prepared conveniently by electrospinning. The membrane exhibits rich fibrous porous networks and uniform distribution of nanoparticles. Strengthened by CaCO3, the tensile strength of the cellulose porous membrane elevates from 4.7 ± 0.4 MPa to 7.7 ± 0.7 MPa. Besides, the modified membranes possess improved thermal stability and can maintain their original size after treatment at 150°C and 180°C. Also, the electrolyte uptake of cellulose/CaCO3 membrane is 73% higher than that of the pure cellulose membrane. Thus, the ionic conductivity of membrane achieves 1.08 mS cm−1 and the electrochemical window is about 4.8 V, which meets the practical requirements of LIBs. Significantly, with LiFePO4/Li battery this membrane can run for 230 cycles with a capacity retention of 97.4% and a discharge capacity of 149.0 mAh g−1, demonstrating the huge potential for high safety and next‐generation LIBs.https://doi.org/10.1049/mna2.12168ionic conductivitylithiummembranesthermal stability |
| spellingShingle | Ting Wang Na Liu Hui Zhou Ming‐Jun Chen A biodegradable nano‐composite membrane for high‐safety and durable lithium‐ion batteries Micro & Nano Letters ionic conductivity lithium membranes thermal stability |
| title | A biodegradable nano‐composite membrane for high‐safety and durable lithium‐ion batteries |
| title_full | A biodegradable nano‐composite membrane for high‐safety and durable lithium‐ion batteries |
| title_fullStr | A biodegradable nano‐composite membrane for high‐safety and durable lithium‐ion batteries |
| title_full_unstemmed | A biodegradable nano‐composite membrane for high‐safety and durable lithium‐ion batteries |
| title_short | A biodegradable nano‐composite membrane for high‐safety and durable lithium‐ion batteries |
| title_sort | biodegradable nano composite membrane for high safety and durable lithium ion batteries |
| topic | ionic conductivity lithium membranes thermal stability |
| url | https://doi.org/10.1049/mna2.12168 |
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