2b5e92f416930c9bfa64b6ff02d9aa70 Ene_a2023v16n11p4496.pdf 2d3ef6e4196459cfa55572323da2dd55f616ee58 Ene_a2023v16n11p4496.pdf fe398dcae5ce378cb8ba9013804d3bc247659270c06971cc563031545e054176 Ene_a2023v16n11p4496.pdf Title: FeS2-Decorated Carbon NanoFiber as Solid Phase Conversion-Type Cathode for Li-S Batteries Subject: A new cathode material, FeS2-decorated carbon nanofiber (CNF), is proposed for Li-S batteries. The structure and physicochemical properties of the material have been engineered to enhance the poor cycling stability typically displayed by sulfur composites. The composite material shows a complex architecture with a matrix of CNF hosting the sulfur and core-shell FeS2 nanoparticles acting as a catalyst for a solid phase conversion-type reaction. This cathode delivers high discharge capacities of 864, 798, 689, 595 and 455 mAhg-1 at C/10, C/5, C/2, 1C and 2C, respectively, with a stable capacity retention of 87% at 2C after 300 cycles. FeS2-decorated CNF has been characterised using several techniques, including in-situ battery measurements at the ALBA synchrotron facility and high-throughput microscopy, giving valuable insights into its charge/discharge reaction mechanism. The excellent performance obtained is combined with the use of just low-cost and abundant elements such as iron, sulfur and carbon, which makes this battery highly promising for the next generation of electrochemical energy storage devices. Keywords: cathode; Li-S battery; FeS2; in-situ battery measurements; synchrotron X-ray diffraction Author: Jordi Jacas Biendicho, Pedro Mazaira, Hemesh Avireddy, Chaoqi Zhang, Pengyi Tang, Alexander Missyul, Lluis Trilla, Jordi Arbiol, Joan Ramon Morante and Andreu Cabot Creator: LaTeX with hyperref Producer: pdfTeX-1.40.21 CreationDate: Fri Jun 2 11:39:56 2023 CEST ModDate: Fri Jun 2 11:47:57 2023 CEST Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 12 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 4440597 bytes Optimized: no PDF version: 1.7 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- VCVFNL+VnURWPalladioL Type 1 Custom yes yes no 10 0 ZJSKLZ+URWPalladioL-Bold Type 1 Custom yes yes no 15 0 LRUBZA+URWPalladioL-Roma Type 1 Custom yes yes no 20 0 EOZNDH+URWPalladioL-Ital Type 1 Custom yes yes no 24 0 AARJPP+CMSY10 Type 1 Builtin yes yes no 28 0 QDIDFO+TimesNewRomanPS-BoldItalicMT Type 1C WinAnsi yes yes no 46 0 BVCRGH+EURM10 Type 1 Builtin yes yes no 68 0 ROWTUD+PazoMath Type 1 Builtin yes yes no 75 0 JLPLFG+PalatinoLinotype,Bold TrueType WinAnsi yes yes no 86 0 JLPLFH+PalatinoLinotype CID TrueType Identity-H yes yes yes 89 0 JLPLFI+PalatinoLinotype TrueType WinAnsi yes yes no 95 0 JLPLFK+PalatinoLinotype,Italic TrueType WinAnsi yes yes no 98 0 JLPLOI+PalatinoLinotype TrueType MacRoman yes yes no 101 0 JLPMDH+TimesNewRoman CID TrueType Identity-H yes yes yes 104 0 JLPLFG+PalatinoLinotype,Bold TrueType WinAnsi yes yes no 118 0 JLPLFH+PalatinoLinotype CID TrueType Identity-H yes yes yes 121 0 JLPLFI+PalatinoLinotype TrueType WinAnsi yes yes no 127 0 JLPLFK+PalatinoLinotype,Italic TrueType WinAnsi yes yes no 130 0 JLPLOI+PalatinoLinotype TrueType MacRoman yes yes no 133 0 JLPLFG+PalatinoLinotype,Bold TrueType WinAnsi yes yes no 147 0 JLPLFH+PalatinoLinotype CID TrueType Identity-H yes yes yes 150 0 JLPLFI+PalatinoLinotype TrueType WinAnsi yes yes no 156 0 JLPLFK+PalatinoLinotype,Italic TrueType WinAnsi yes yes no 159 0 JLPLOI+PalatinoLinotype TrueType MacRoman yes yes no 162 0 JLPMDH+TimesNewRoman CID TrueType Identity-H yes yes yes 165 0 JLPLFG+PalatinoLinotype,Bold TrueType WinAnsi yes yes no 182 0 JLPLFH+PalatinoLinotype CID TrueType Identity-H yes yes yes 185 0 JLPLFI+PalatinoLinotype TrueType WinAnsi yes yes no 191 0 JLPLFK+PalatinoLinotype,Italic TrueType WinAnsi yes yes no 194 0 JLPLOI+PalatinoLinotype TrueType MacRoman yes yes no 197 0 JLPLFG+PalatinoLinotype,Bold TrueType WinAnsi yes yes no 211 0 JLPLFH+PalatinoLinotype CID TrueType Identity-H yes yes yes 214 0 JLPLFI+PalatinoLinotype TrueType WinAnsi yes yes no 220 0 JLPLFK+PalatinoLinotype,Italic TrueType WinAnsi yes yes no 223 0 JLPLOI+PalatinoLinotype TrueType MacRoman yes yes no 226 0 JLPLFG+PalatinoLinotype,Bold TrueType WinAnsi yes yes no 241 0 JLPLFH+PalatinoLinotype CID TrueType Identity-H yes yes yes 244 0 JLPLFI+PalatinoLinotype TrueType WinAnsi yes yes no 250 0 JLPLFK+PalatinoLinotype,Italic TrueType WinAnsi yes yes no 253 0 JLPLOI+PalatinoLinotype TrueType MacRoman yes yes no 256 0 JLPLFG+PalatinoLinotype,Bold TrueType WinAnsi yes yes no 271 0 JLPLFH+PalatinoLinotype CID TrueType Identity-H yes yes yes 274 0 JLPLFI+PalatinoLinotype TrueType WinAnsi yes yes no 280 0 JLPLFK+PalatinoLinotype,Italic TrueType WinAnsi yes yes no 283 0 JLPLOI+PalatinoLinotype TrueType MacRoman yes yes no 286 0 JLPMDH+TimesNewRoman CID TrueType Identity-H yes yes yes 289 0 Jhove (Rel. 1.22.1, 2019-04-17) Date: 2023-11-08 02:29:22 CET RepresentationInformation: Ene_a2023v16n11p4496.pdf ReportingModule: PDF-hul, Rel. 1.12.1 (2019-04-17) LastModified: 2023-11-07 14:27:46 CET Size: 4440597 Format: PDF Version: 1.7 Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/pdf PDFMetadata: Objects: 442 FreeObjects: 1 IncrementalUpdates: 0 DocumentCatalog: PageLayout: SinglePage PageMode: UseNone Outlines: Item: Title: Introduction Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@4d3167f4 Item: Title: Results and Discussion Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@ed9d034 Item: Title: Conclusions Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@6121c9d6 Item: Title: Experimental Section Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@87f383f Item: Title: References Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@4eb7f003 Info: Title: FeS2-Decorated Carbon NanoFiber as Solid Phase Conversion-Type Cathode for Li-S Batteries Author: Jordi Jacas Biendicho, Pedro Mazaira, Hemesh Avireddy, Chaoqi Zhang, Pengyi Tang, Alexander Missyul, Lluis Trilla, Jordi Arbiol, Joan Ramon Morante and Andreu Cabot Subject: A new cathode material, FeS2-decorated carbon nanofiber (CNF), is proposed for Li-S batteries. The structure and physicochemical properties of the material have been engineered to enhance the poor cycling stability typically displayed by sulfur composites. The composite material shows a complex architecture with a matrix of CNF hosting the sulfur and core-shell FeS2 nanoparticles acting as a catalyst for a solid phase conversion-type reaction. This cathode delivers high discharge capacities of 864, 798, 689, 595 and 455 mAhg-1 at C/10, C/5, C/2, 1C and 2C, respectively, with a stable capacity retention of 87% at 2C after 300 cycles. FeS2-decorated CNF has been characterised using several techniques, including in-situ battery measurements at the ALBA synchrotron facility and high-throughput microscopy, giving valuable insights into its charge/discharge reaction mechanism. The excellent performance obtained is combined with the use of just low-cost and abundant elements such as iron, sulfur and carbon, which makes this battery highly promising for the next generation of electrochemical energy storage devices. 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