Effect of PVP Coating on LiMnBO<sub>3</sub> Cathodes for Li-Ion Batteries
LiMnBO<sub>3</sub> is a potential cathode for Li-ion batteries, but it suffers from a low electrochemical activity. To improve the electrochemical performance of LiMnBO<sub>3</sub>, the effect of polyvinyl pyrrolidone (PVP) as carbon additive was studied. Monoclinic LiMnBO<...
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MDPI AG
2020-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/23/5528 |
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| author | Bolong Hong Xiangming He Huihua Yi Chenglin Hu |
| author_facet | Bolong Hong Xiangming He Huihua Yi Chenglin Hu |
| author_sort | Bolong Hong |
| collection | DOAJ |
| description | LiMnBO<sub>3</sub> is a potential cathode for Li-ion batteries, but it suffers from a low electrochemical activity. To improve the electrochemical performance of LiMnBO<sub>3</sub>, the effect of polyvinyl pyrrolidone (PVP) as carbon additive was studied. Monoclinic LiMnBO<sub>3</sub>/C and LiMnBO<sub>3</sub>-MnO/C materials were obtained by a solid-state method at 500 °C. The structure, morphology and electrochemical behavior of these materials are characterized and compared. The results show that carbon additives and ball-milling dispersants affect the formation of impurities in the final products, but MnO is beneficial for the performance of LiMnBO<sub>3</sub>. The sample of LiMnBO<sub>3</sub>-MnO/C delivered a high capacity of 162.1 mAh g<sup>−1</sup> because the synergistic effect of the MnO/C composite and the suppression of the PVP coating on particle growth facilitates charge transfer and lithium–ion diffusion. |
| first_indexed | 2024-03-10T14:20:40Z |
| format | Article |
| id | doaj.art-ad73a4b915b84ed8829cdae6ba218746 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T14:20:40Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-ad73a4b915b84ed8829cdae6ba2187462023-11-20T23:24:56ZengMDPI AGMaterials1996-19442020-12-011323552810.3390/ma13235528Effect of PVP Coating on LiMnBO<sub>3</sub> Cathodes for Li-Ion BatteriesBolong Hong0Xiangming He1Huihua Yi2Chenglin Hu3Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, School of Materials Science and Engineering, Hubei Polytechnic University, Huangshi 435003, ChinaInstitute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaHubei Key Laboratory of Mine Environmental Pollution Control & Remediation, School of Materials Science and Engineering, Hubei Polytechnic University, Huangshi 435003, ChinaHubei Key Laboratory of Mine Environmental Pollution Control & Remediation, School of Materials Science and Engineering, Hubei Polytechnic University, Huangshi 435003, ChinaLiMnBO<sub>3</sub> is a potential cathode for Li-ion batteries, but it suffers from a low electrochemical activity. To improve the electrochemical performance of LiMnBO<sub>3</sub>, the effect of polyvinyl pyrrolidone (PVP) as carbon additive was studied. Monoclinic LiMnBO<sub>3</sub>/C and LiMnBO<sub>3</sub>-MnO/C materials were obtained by a solid-state method at 500 °C. The structure, morphology and electrochemical behavior of these materials are characterized and compared. The results show that carbon additives and ball-milling dispersants affect the formation of impurities in the final products, but MnO is beneficial for the performance of LiMnBO<sub>3</sub>. The sample of LiMnBO<sub>3</sub>-MnO/C delivered a high capacity of 162.1 mAh g<sup>−1</sup> because the synergistic effect of the MnO/C composite and the suppression of the PVP coating on particle growth facilitates charge transfer and lithium–ion diffusion.https://www.mdpi.com/1996-1944/13/23/5528lithium-ion batteriespolyvinyl pyrrolidonecarbon coatingMnO |
| spellingShingle | Bolong Hong Xiangming He Huihua Yi Chenglin Hu Effect of PVP Coating on LiMnBO<sub>3</sub> Cathodes for Li-Ion Batteries Materials lithium-ion batteries polyvinyl pyrrolidone carbon coating MnO |
| title | Effect of PVP Coating on LiMnBO<sub>3</sub> Cathodes for Li-Ion Batteries |
| title_full | Effect of PVP Coating on LiMnBO<sub>3</sub> Cathodes for Li-Ion Batteries |
| title_fullStr | Effect of PVP Coating on LiMnBO<sub>3</sub> Cathodes for Li-Ion Batteries |
| title_full_unstemmed | Effect of PVP Coating on LiMnBO<sub>3</sub> Cathodes for Li-Ion Batteries |
| title_short | Effect of PVP Coating on LiMnBO<sub>3</sub> Cathodes for Li-Ion Batteries |
| title_sort | effect of pvp coating on limnbo sub 3 sub cathodes for li ion batteries |
| topic | lithium-ion batteries polyvinyl pyrrolidone carbon coating MnO |
| url | https://www.mdpi.com/1996-1944/13/23/5528 |
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