LAPSE:2023.22376
Published Article
LAPSE:2023.22376
High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure
March 24, 2023
Abstract
LiNixCoyMnzO2 (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 LiNi1/3Co1/3Mn1/3O2 (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−1 at 0.85 A·g−1 and 114.3 mAh·g−1 at 1.70 A·g−1, 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.
LiNixCoyMnzO2 (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 LiNi1/3Co1/3Mn1/3O2 (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−1 at 0.85 A·g−1 and 114.3 mAh·g−1 at 1.70 A·g−1, 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.
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Keywords
agglomerated structure, high-rate, layered cathode, lithium-ion batteries
Subject
Suggested Citation
Hu JP, Sheng H, Deng Q, Ma Q, Liu J, Wu XW, Liu JJ, Wu YP. High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure. (2023). LAPSE:2023.22376
Author Affiliations
Hu JP: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
Sheng H: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
Deng Q: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
Ma Q: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
Liu J: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
Wu XW: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
Liu JJ: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China; School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China
Wu YP: School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China [ORCID]
Sheng H: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
Deng Q: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
Ma Q: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
Liu J: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
Wu XW: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
Liu JJ: School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China; School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China
Wu YP: School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China [ORCID]
Journal Name
Energies
Volume
13
Issue
7
Article Number
E1602
Year
2020
Publication Date
2020-04-01
ISSN
1996-1073
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PII: en13071602, Publication Type: Journal Article
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LAPSE:2023.22376
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https://doi.org/10.3390/en13071602
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Mar 24, 2023
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