High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure
LiNi<sub>x</sub>Co<sub>y</sub>Mn<sub>z</sub>O<sub>2</sub> (LNCM)-layered materials are considered the most promising cathode for high-energy lithium ion batteries, but suffer from poor rate capability and short lifecycle. In addition, the LiNi<sub&g...
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MDPI AG
2020-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/7/1602 |
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| author | Jun-Ping Hu Hang Sheng Qi Deng Qiang Ma Jun Liu Xiong-Wei Wu Jun-Jie Liu Yu-Ping Wu |
| author_facet | Jun-Ping Hu Hang Sheng Qi Deng Qiang Ma Jun Liu Xiong-Wei Wu Jun-Jie Liu Yu-Ping Wu |
| author_sort | Jun-Ping Hu |
| collection | DOAJ |
| description | LiNi<sub>x</sub>Co<sub>y</sub>Mn<sub>z</sub>O<sub>2</sub> (LNCM)-layered materials are considered the most promising cathode for high-energy lithium ion batteries, but suffer from poor rate capability and short lifecycle. In addition, the LiNi<sub>1/3</sub>Co<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> (NCM 111) is considered one of the most widely used LNCM cathodes because of its high energy density and good safety. Herein, a kind of NCM 111 with semi-closed structure was designed by controlling the amount of urea, which possesses high rate capability and long lifespan, exhibiting 140.9 mAh·g<sup>−1</sup> at 0.85 A·g<sup>−1</sup> and 114.3 mAh·g<sup>−1</sup> at 1.70 A·g<sup>−1</sup>, respectively. The semi-closed structure is conducive to the infiltration of electrolytes and fast lithium ion-transfer inside the electrode material, thus improving the rate performance of the battery. Our work may provide an effective strategy for designing layered-cathode materials with high rate capability. |
| first_indexed | 2024-03-10T20:44:43Z |
| format | Article |
| id | doaj.art-34fe14e615cf461098bb080c882aa19a |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T20:44:43Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-34fe14e615cf461098bb080c882aa19a2023-11-19T20:21:41ZengMDPI AGEnergies1996-10732020-04-01137160210.3390/en13071602High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated StructureJun-Ping Hu0Hang Sheng1Qi Deng2Qiang Ma3Jun Liu4Xiong-Wei Wu5Jun-Jie Liu6Yu-Ping Wu7School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, ChinaSchool of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, ChinaSchool of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, ChinaSchool of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, ChinaSchool of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, ChinaSchool of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, ChinaSchool of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, ChinaSchool of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, ChinaLiNi<sub>x</sub>Co<sub>y</sub>Mn<sub>z</sub>O<sub>2</sub> (LNCM)-layered materials are considered the most promising cathode for high-energy lithium ion batteries, but suffer from poor rate capability and short lifecycle. In addition, the LiNi<sub>1/3</sub>Co<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> (NCM 111) is considered one of the most widely used LNCM cathodes because of its high energy density and good safety. Herein, a kind of NCM 111 with semi-closed structure was designed by controlling the amount of urea, which possesses high rate capability and long lifespan, exhibiting 140.9 mAh·g<sup>−1</sup> at 0.85 A·g<sup>−1</sup> and 114.3 mAh·g<sup>−1</sup> at 1.70 A·g<sup>−1</sup>, respectively. The semi-closed structure is conducive to the infiltration of electrolytes and fast lithium ion-transfer inside the electrode material, thus improving the rate performance of the battery. Our work may provide an effective strategy for designing layered-cathode materials with high rate capability.https://www.mdpi.com/1996-1073/13/7/1602agglomerated structurehigh-ratelayered cathodelithium-ion batteries |
| spellingShingle | Jun-Ping Hu Hang Sheng Qi Deng Qiang Ma Jun Liu Xiong-Wei Wu Jun-Jie Liu Yu-Ping Wu High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure Energies agglomerated structure high-rate layered cathode lithium-ion batteries |
| title | High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure |
| title_full | High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure |
| title_fullStr | High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure |
| title_full_unstemmed | High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure |
| title_short | High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure |
| title_sort | high rate layered cathode of lithium ion batteries through regulating three dimensional agglomerated structure |
| topic | agglomerated structure high-rate layered cathode lithium-ion batteries |
| url | https://www.mdpi.com/1996-1073/13/7/1602 |
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