Transformation of SnS Nanocompisites to Sn and S Nanoparticles during Lithiation
SnS nanomaterials have a high initial capacity of 1000 mAh g<sup>−1</sup>; however, this cannot be retained throughout electrochemical cycling. The present study provides insight into this capacity decay by examining the effect that Li intercalation has on SnS “nanoflowers” attached on c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/2/145 |
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| author | Haokun Deng Thapanee Sarakonsri Tao Huang Aishui Yu Katerina Aifantis |
| author_facet | Haokun Deng Thapanee Sarakonsri Tao Huang Aishui Yu Katerina Aifantis |
| author_sort | Haokun Deng |
| collection | DOAJ |
| description | SnS nanomaterials have a high initial capacity of 1000 mAh g<sup>−1</sup>; however, this cannot be retained throughout electrochemical cycling. The present study provides insight into this capacity decay by examining the effect that Li intercalation has on SnS “nanoflowers” attached on carbon substrates’ such as artificial graphite. Scanning and transmission electron microscopy reveal that lithiation of such materials disrupts their initial morphology and produces free-standing Sn and SnS nanoparticles that dissolve in the electrolyte and disperse uniformly over the entire electrode surface. As a result, the SnS is rendered inactive after initial cycling and contributes to the formation of the solid electrolyte interface layer, resulting in continuous capacity decay during long term cycling. This is the first study that illustrates the morphological effects that the conversion mechanism has on SnS anodes. In order to fully utilize SnS materials, it is necessary to isolate them from the electrolyte by fully encapsulating them in a matrix. |
| first_indexed | 2024-03-09T03:18:22Z |
| format | Article |
| id | doaj.art-e07ca9f631154ac789d01dc5bdda15f2 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-09T03:18:22Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-e07ca9f631154ac789d01dc5bdda15f22023-12-03T15:16:28ZengMDPI AGCrystals2073-43522021-01-0111214510.3390/cryst11020145Transformation of SnS Nanocompisites to Sn and S Nanoparticles during LithiationHaokun Deng0Thapanee Sarakonsri1Tao Huang2Aishui Yu3Katerina Aifantis4EVE Energy Co., Ltd., Huizhou 516006, ChinaDepartment of Chemistry, Chiang Mai University, Chiang Mai 50200, ThailandInstitute of New Energy, Fudan University, Shanghai 200438, ChinaInstitute of New Energy, Fudan University, Shanghai 200438, ChinaMechanical and Aerospace Engineering, University of Florida, Gainesville, FL 36211, USASnS nanomaterials have a high initial capacity of 1000 mAh g<sup>−1</sup>; however, this cannot be retained throughout electrochemical cycling. The present study provides insight into this capacity decay by examining the effect that Li intercalation has on SnS “nanoflowers” attached on carbon substrates’ such as artificial graphite. Scanning and transmission electron microscopy reveal that lithiation of such materials disrupts their initial morphology and produces free-standing Sn and SnS nanoparticles that dissolve in the electrolyte and disperse uniformly over the entire electrode surface. As a result, the SnS is rendered inactive after initial cycling and contributes to the formation of the solid electrolyte interface layer, resulting in continuous capacity decay during long term cycling. This is the first study that illustrates the morphological effects that the conversion mechanism has on SnS anodes. In order to fully utilize SnS materials, it is necessary to isolate them from the electrolyte by fully encapsulating them in a matrix.https://www.mdpi.com/2073-4352/11/2/145anodetin sulfidelithium ion batteryconversion reactionnanoflower |
| spellingShingle | Haokun Deng Thapanee Sarakonsri Tao Huang Aishui Yu Katerina Aifantis Transformation of SnS Nanocompisites to Sn and S Nanoparticles during Lithiation Crystals anode tin sulfide lithium ion battery conversion reaction nanoflower |
| title | Transformation of SnS Nanocompisites to Sn and S Nanoparticles during Lithiation |
| title_full | Transformation of SnS Nanocompisites to Sn and S Nanoparticles during Lithiation |
| title_fullStr | Transformation of SnS Nanocompisites to Sn and S Nanoparticles during Lithiation |
| title_full_unstemmed | Transformation of SnS Nanocompisites to Sn and S Nanoparticles during Lithiation |
| title_short | Transformation of SnS Nanocompisites to Sn and S Nanoparticles during Lithiation |
| title_sort | transformation of sns nanocompisites to sn and s nanoparticles during lithiation |
| topic | anode tin sulfide lithium ion battery conversion reaction nanoflower |
| url | https://www.mdpi.com/2073-4352/11/2/145 |
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