Increased Cycling Performance of Li-Ion Batteries by Phosphoric Acid Modified LiNi0.5Mn1.5O4 Cathodes in the Presence of LiBOB
LiNi0.5Mn1.5O4 (LNMO), which has an operating voltage of 4.8 vs Li/Li+ and a theoretical capacity of 147 mAh g−1, is an interesting cathode material for advanced lithium ion batteries. However, electrolyte decomposition at the electrode can gradually decrease the capacity of the battery. In this stu...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | International Journal of Electrochemistry |
| Online Access: | http://dx.doi.org/10.1155/2019/8636540 |
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| author | Maheeka Yapa Abeywardana Nina Laszczynski Matthias Kuenzel Dominic Bresser Stefano Passerini Brett Lucht |
| author_facet | Maheeka Yapa Abeywardana Nina Laszczynski Matthias Kuenzel Dominic Bresser Stefano Passerini Brett Lucht |
| author_sort | Maheeka Yapa Abeywardana |
| collection | DOAJ |
| description | LiNi0.5Mn1.5O4 (LNMO), which has an operating voltage of 4.8 vs Li/Li+ and a theoretical capacity of 147 mAh g−1, is an interesting cathode material for advanced lithium ion batteries. However, electrolyte decomposition at the electrode can gradually decrease the capacity of the battery. In this study, the surface of the LNMO cathode has been modified with phosphoric acid (PA) to improve the capacity of the LNMO/graphite full cell. Modification of LNMO cathodes by PA is confirmed by surface analysis. Additionally, the presence of lithium bis-(oxalato) borate (LiBOB) as an electrolyte additive further enhances the performance of PA modified LNMO/graphite cells. The improved performance of PA modified cathodes and electrolytes containing LiBOB can be attributed to the suppressed Mn and Ni deposition on the anode. Elemental analysis suggests that the Mn and Ni dissolution is significantly reduced compared to unmodified LNMO/graphite cells with standard electrolyte. |
| format | Article |
| id | doaj-art-9f831e70353a44fdb35cd3ddc43b6fdb |
| institution | Kabale University |
| issn | 2090-3529 2090-3537 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Electrochemistry |
| spelling | doaj-art-9f831e70353a44fdb35cd3ddc43b6fdb2025-02-03T06:06:10ZengWileyInternational Journal of Electrochemistry2090-35292090-35372019-01-01201910.1155/2019/86365408636540Increased Cycling Performance of Li-Ion Batteries by Phosphoric Acid Modified LiNi0.5Mn1.5O4 Cathodes in the Presence of LiBOBMaheeka Yapa Abeywardana0Nina Laszczynski1Matthias Kuenzel2Dominic Bresser3Stefano Passerini4Brett Lucht5Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USADepartment of Chemistry, University of Rhode Island, Kingston, RI 02881, USAHelmholtz Institute Ulm (HIU), 89081 Ulm, GermanyHelmholtz Institute Ulm (HIU), 89081 Ulm, GermanyHelmholtz Institute Ulm (HIU), 89081 Ulm, GermanyDepartment of Chemistry, University of Rhode Island, Kingston, RI 02881, USALiNi0.5Mn1.5O4 (LNMO), which has an operating voltage of 4.8 vs Li/Li+ and a theoretical capacity of 147 mAh g−1, is an interesting cathode material for advanced lithium ion batteries. However, electrolyte decomposition at the electrode can gradually decrease the capacity of the battery. In this study, the surface of the LNMO cathode has been modified with phosphoric acid (PA) to improve the capacity of the LNMO/graphite full cell. Modification of LNMO cathodes by PA is confirmed by surface analysis. Additionally, the presence of lithium bis-(oxalato) borate (LiBOB) as an electrolyte additive further enhances the performance of PA modified LNMO/graphite cells. The improved performance of PA modified cathodes and electrolytes containing LiBOB can be attributed to the suppressed Mn and Ni deposition on the anode. Elemental analysis suggests that the Mn and Ni dissolution is significantly reduced compared to unmodified LNMO/graphite cells with standard electrolyte.http://dx.doi.org/10.1155/2019/8636540 |
| spellingShingle | Maheeka Yapa Abeywardana Nina Laszczynski Matthias Kuenzel Dominic Bresser Stefano Passerini Brett Lucht Increased Cycling Performance of Li-Ion Batteries by Phosphoric Acid Modified LiNi0.5Mn1.5O4 Cathodes in the Presence of LiBOB International Journal of Electrochemistry |
| title | Increased Cycling Performance of Li-Ion Batteries by Phosphoric Acid Modified LiNi0.5Mn1.5O4 Cathodes in the Presence of LiBOB |
| title_full | Increased Cycling Performance of Li-Ion Batteries by Phosphoric Acid Modified LiNi0.5Mn1.5O4 Cathodes in the Presence of LiBOB |
| title_fullStr | Increased Cycling Performance of Li-Ion Batteries by Phosphoric Acid Modified LiNi0.5Mn1.5O4 Cathodes in the Presence of LiBOB |
| title_full_unstemmed | Increased Cycling Performance of Li-Ion Batteries by Phosphoric Acid Modified LiNi0.5Mn1.5O4 Cathodes in the Presence of LiBOB |
| title_short | Increased Cycling Performance of Li-Ion Batteries by Phosphoric Acid Modified LiNi0.5Mn1.5O4 Cathodes in the Presence of LiBOB |
| title_sort | increased cycling performance of li ion batteries by phosphoric acid modified lini0 5mn1 5o4 cathodes in the presence of libob |
| url | http://dx.doi.org/10.1155/2019/8636540 |
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