High-Performance Lithium Sulfur Batteries Based on Multidimensional Graphene-CNT-Nanosulfur Hybrid Cathodes
Although lithium-sulfur (Li-S) batteries are one of the promising candidates for next-generation energy storage, their practical implementation is limited by rapid capacity fading due to lithium polysulfide (LiPSs) formation and the low electronic conductivity of sulfur. Herein, we report a high-per...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Batteries |
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| Online Access: | https://www.mdpi.com/2313-0105/7/2/26 |
| _version_ | 1797537209207750656 |
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| author | Álvaro Doñoro Álvaro Muñoz-Mauricio Vinodkumar Etacheri |
| author_facet | Álvaro Doñoro Álvaro Muñoz-Mauricio Vinodkumar Etacheri |
| author_sort | Álvaro Doñoro |
| collection | DOAJ |
| description | Although lithium-sulfur (Li-S) batteries are one of the promising candidates for next-generation energy storage, their practical implementation is limited by rapid capacity fading due to lithium polysulfide (LiPSs) formation and the low electronic conductivity of sulfur. Herein, we report a high-performance lithium-sulfur battery based on multidimensional cathode architecture consisting of nanosulfur, graphene nanoplatelets (2D) and multiwalled carbon nanotubes (1D). The ultrasonic synthesis method results in the generation of sulfur nanoparticles and their intercalation into the multilayered graphene nanoplatelets. The optimized multidimensional graphene-sulfur-CNT hybrid cathode (GNS58-CNT10) demonstrated a high specific capacity (1067 mAh g<sup>−1</sup> @ 50 mA g<sup>−1</sup>), rate performance (539 @ 1 A g<sup>−1</sup>), coulombic efficiency (~95%) and cycling stability (726 mAh g<sup>−1</sup> after 100 cycles @ 200 mA g<sup>−1</sup>) compared to the reference cathode. Superior electrochemical performances are credited to the encapsulation of nanosulfur between the individual layers of graphene nanoplatelets with high electronic conductivity, and effective polysulfide trapping by MWCNT bundles. |
| first_indexed | 2024-03-10T12:12:51Z |
| format | Article |
| id | doaj.art-bbef9bb02bc04af38afcad20cfd6c6d9 |
| institution | Directory Open Access Journal |
| issn | 2313-0105 |
| language | English |
| last_indexed | 2024-03-10T12:12:51Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Batteries |
| spelling | doaj.art-bbef9bb02bc04af38afcad20cfd6c6d92023-11-21T16:07:06ZengMDPI AGBatteries2313-01052021-04-01722610.3390/batteries7020026High-Performance Lithium Sulfur Batteries Based on Multidimensional Graphene-CNT-Nanosulfur Hybrid CathodesÁlvaro Doñoro0Álvaro Muñoz-Mauricio1Vinodkumar Etacheri2Electrochemistry Division IMDEA Materiales, c/ Eric Kandel 2, Getafe, 28906 Madrid, SpainEscuela Politécnica Superior, Universidad Carlos III de Madrid, Leganés, 28911 Madrid, SpainElectrochemistry Division IMDEA Materiales, c/ Eric Kandel 2, Getafe, 28906 Madrid, SpainAlthough lithium-sulfur (Li-S) batteries are one of the promising candidates for next-generation energy storage, their practical implementation is limited by rapid capacity fading due to lithium polysulfide (LiPSs) formation and the low electronic conductivity of sulfur. Herein, we report a high-performance lithium-sulfur battery based on multidimensional cathode architecture consisting of nanosulfur, graphene nanoplatelets (2D) and multiwalled carbon nanotubes (1D). The ultrasonic synthesis method results in the generation of sulfur nanoparticles and their intercalation into the multilayered graphene nanoplatelets. The optimized multidimensional graphene-sulfur-CNT hybrid cathode (GNS58-CNT10) demonstrated a high specific capacity (1067 mAh g<sup>−1</sup> @ 50 mA g<sup>−1</sup>), rate performance (539 @ 1 A g<sup>−1</sup>), coulombic efficiency (~95%) and cycling stability (726 mAh g<sup>−1</sup> after 100 cycles @ 200 mA g<sup>−1</sup>) compared to the reference cathode. Superior electrochemical performances are credited to the encapsulation of nanosulfur between the individual layers of graphene nanoplatelets with high electronic conductivity, and effective polysulfide trapping by MWCNT bundles.https://www.mdpi.com/2313-0105/7/2/26lithium-sulfur batteriesgraphene nanoplateletscarbon nanotubeshybrid electrode |
| spellingShingle | Álvaro Doñoro Álvaro Muñoz-Mauricio Vinodkumar Etacheri High-Performance Lithium Sulfur Batteries Based on Multidimensional Graphene-CNT-Nanosulfur Hybrid Cathodes Batteries lithium-sulfur batteries graphene nanoplatelets carbon nanotubes hybrid electrode |
| title | High-Performance Lithium Sulfur Batteries Based on Multidimensional Graphene-CNT-Nanosulfur Hybrid Cathodes |
| title_full | High-Performance Lithium Sulfur Batteries Based on Multidimensional Graphene-CNT-Nanosulfur Hybrid Cathodes |
| title_fullStr | High-Performance Lithium Sulfur Batteries Based on Multidimensional Graphene-CNT-Nanosulfur Hybrid Cathodes |
| title_full_unstemmed | High-Performance Lithium Sulfur Batteries Based on Multidimensional Graphene-CNT-Nanosulfur Hybrid Cathodes |
| title_short | High-Performance Lithium Sulfur Batteries Based on Multidimensional Graphene-CNT-Nanosulfur Hybrid Cathodes |
| title_sort | high performance lithium sulfur batteries based on multidimensional graphene cnt nanosulfur hybrid cathodes |
| topic | lithium-sulfur batteries graphene nanoplatelets carbon nanotubes hybrid electrode |
| url | https://www.mdpi.com/2313-0105/7/2/26 |
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