Electrochemical performance of SiCN embedded carbon (SiCN–C) fiber mat electrodes for lithium-ion battery: Electrospinning polysilazane in air or protective atmosphere
Here polysilazane/polyacrylonitrile fiber mats were manufactured by electrospinning in air or protective atmosphere. After pyrolysis, SiCN embedded carbon (SiCN–C) was tested as lithium-ion battery (LIB) electrode. Fibers electrospun in nitrogen are found to be thinner due to the slower solidificati...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Open Ceramics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666539523000238 |
| _version_ | 1797818315956027392 |
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| author | Heloisa Ramlow Cintia Marangoni Günter Motz Gurpreet Singh Ricardo Antonio Francisco Machado |
| author_facet | Heloisa Ramlow Cintia Marangoni Günter Motz Gurpreet Singh Ricardo Antonio Francisco Machado |
| author_sort | Heloisa Ramlow |
| collection | DOAJ |
| description | Here polysilazane/polyacrylonitrile fiber mats were manufactured by electrospinning in air or protective atmosphere. After pyrolysis, SiCN embedded carbon (SiCN–C) was tested as lithium-ion battery (LIB) electrode. Fibers electrospun in nitrogen are found to be thinner due to the slower solidification of the flying jet. XPS analysis confirmed that fibers electrospun in air incorporated a great oxygen content during shaping. The highest charge capacity of 773 mA h g−1 at 50 mA g−1 was recovered for SiCN–C electrospun in air. Oxygen increased the capacity due to its high character to attract Li+ ions, but SiCN–C electrospun in air suffered voltage hysteresis. Contrariwise, the SiCN–C electrospun in nitrogen demonstrated stable cycling with a charge capacity of 299 mA h g−1 and 98% recovery of the initial capacity due to enhanced free carbon content. These findings make electrospinning very promising for the highly controlled production of freestanding SiCN fiber mat electrodes. |
| first_indexed | 2024-03-13T09:06:22Z |
| format | Article |
| id | doaj.art-efe5c17f3d294e37b217f560223fbea3 |
| institution | Directory Open Access Journal |
| issn | 2666-5395 |
| language | English |
| last_indexed | 2024-03-13T09:06:22Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Open Ceramics |
| spelling | doaj.art-efe5c17f3d294e37b217f560223fbea32023-05-28T04:09:20ZengElsevierOpen Ceramics2666-53952023-06-0114100351Electrochemical performance of SiCN embedded carbon (SiCN–C) fiber mat electrodes for lithium-ion battery: Electrospinning polysilazane in air or protective atmosphereHeloisa Ramlow0Cintia Marangoni1Günter Motz2Gurpreet Singh3Ricardo Antonio Francisco Machado4Graduate Program in Chemical Engineering, Federal University of Santa Catarina, Universitário Reitor João David Ferreira Lima Campus, 88040-900, Florianópolis, Santa Catarina, Brazil; Department of Ceramic Materials Engineering, University of Bayreuth, Prof. R.-Bormann-Str. 1, 95447, Bayreuth, Bayern, Germany; Department of Mechanical and Nuclear Engineering, Kansas State University, 66506, Manhattan, KS, USAGraduate Program in Chemical Engineering, Federal University of Santa Catarina, Universitário Reitor João David Ferreira Lima Campus, 88040-900, Florianópolis, Santa Catarina, BrazilDepartment of Ceramic Materials Engineering, University of Bayreuth, Prof. R.-Bormann-Str. 1, 95447, Bayreuth, Bayern, GermanyDepartment of Mechanical and Nuclear Engineering, Kansas State University, 66506, Manhattan, KS, USAGraduate Program in Chemical Engineering, Federal University of Santa Catarina, Universitário Reitor João David Ferreira Lima Campus, 88040-900, Florianópolis, Santa Catarina, Brazil; Corresponding author.Here polysilazane/polyacrylonitrile fiber mats were manufactured by electrospinning in air or protective atmosphere. After pyrolysis, SiCN embedded carbon (SiCN–C) was tested as lithium-ion battery (LIB) electrode. Fibers electrospun in nitrogen are found to be thinner due to the slower solidification of the flying jet. XPS analysis confirmed that fibers electrospun in air incorporated a great oxygen content during shaping. The highest charge capacity of 773 mA h g−1 at 50 mA g−1 was recovered for SiCN–C electrospun in air. Oxygen increased the capacity due to its high character to attract Li+ ions, but SiCN–C electrospun in air suffered voltage hysteresis. Contrariwise, the SiCN–C electrospun in nitrogen demonstrated stable cycling with a charge capacity of 299 mA h g−1 and 98% recovery of the initial capacity due to enhanced free carbon content. These findings make electrospinning very promising for the highly controlled production of freestanding SiCN fiber mat electrodes.http://www.sciencedirect.com/science/article/pii/S2666539523000238Ceramic anodeElectrode materialPolymer-derived ceramic |
| spellingShingle | Heloisa Ramlow Cintia Marangoni Günter Motz Gurpreet Singh Ricardo Antonio Francisco Machado Electrochemical performance of SiCN embedded carbon (SiCN–C) fiber mat electrodes for lithium-ion battery: Electrospinning polysilazane in air or protective atmosphere Open Ceramics Ceramic anode Electrode material Polymer-derived ceramic |
| title | Electrochemical performance of SiCN embedded carbon (SiCN–C) fiber mat electrodes for lithium-ion battery: Electrospinning polysilazane in air or protective atmosphere |
| title_full | Electrochemical performance of SiCN embedded carbon (SiCN–C) fiber mat electrodes for lithium-ion battery: Electrospinning polysilazane in air or protective atmosphere |
| title_fullStr | Electrochemical performance of SiCN embedded carbon (SiCN–C) fiber mat electrodes for lithium-ion battery: Electrospinning polysilazane in air or protective atmosphere |
| title_full_unstemmed | Electrochemical performance of SiCN embedded carbon (SiCN–C) fiber mat electrodes for lithium-ion battery: Electrospinning polysilazane in air or protective atmosphere |
| title_short | Electrochemical performance of SiCN embedded carbon (SiCN–C) fiber mat electrodes for lithium-ion battery: Electrospinning polysilazane in air or protective atmosphere |
| title_sort | electrochemical performance of sicn embedded carbon sicn c fiber mat electrodes for lithium ion battery electrospinning polysilazane in air or protective atmosphere |
| topic | Ceramic anode Electrode material Polymer-derived ceramic |
| url | http://www.sciencedirect.com/science/article/pii/S2666539523000238 |
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