Facile modification using organic acid molecules to neutralize residual alkaline compounds for stabilizing LiNi0.95Co0.04Mn0.01O2 cathode material
The presence of residual alkaline compounds in the ultrahigh-nickel layered oxide cathodes (LiNixCoyMn1−x−yO2, x ≥ 0.9) aggravates structural degradation, increases surface reactivity, and promotes slurry gelation, leading to the capacity decay of batteries with these cathodes and complicating their...
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Tsinghua University Press
2025-03-01
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| Series: | Energy Materials and Devices |
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| Online Access: | https://www.sciopen.com/article/10.26599/EMD.2025.9370056 |
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| author | Chao Zhao Xiangshao Yin Yuanyuan Huang Xinyu Zhang Weihong Jiang Zhuo Zhou Wenhui Tu Xianshu Wang Ding Wang Jianguo Duan |
| author_facet | Chao Zhao Xiangshao Yin Yuanyuan Huang Xinyu Zhang Weihong Jiang Zhuo Zhou Wenhui Tu Xianshu Wang Ding Wang Jianguo Duan |
| author_sort | Chao Zhao |
| collection | DOAJ |
| description | The presence of residual alkaline compounds in the ultrahigh-nickel layered oxide cathodes (LiNixCoyMn1−x−yO2, x ≥ 0.9) aggravates structural degradation, increases surface reactivity, and promotes slurry gelation, leading to the capacity decay of batteries with these cathodes and complicating their manufacturing. Traditional approaches for addressing this issue, including direct removal, coverage, and utilization, are complex and require surface regeneration. Herein, we propose neutralizing residual alkaline compounds with 3-thiopheneboronic acid (3-TBA) to improve the performance of LiNi0.95Co0.04Mn0.01O2 (NCM) cathode material, a facile strategy that does not require any post-treatment. The suggested reaction yields a uniform and thin organic-modified layer on the surface of the NCM cathode, improving its chemical stability toward the electrolyte, as demonstrated by multiple characterization methods. The modified NCM cathode exhibited impressive cyclic and rate performances, achieving a capacity retention of 83.34% after 200 cycles at 1.0 C and a specific capacity of 162.00 mAh·g−1 at 10.0 C. Most importantly, the proposed approach can efficiently suppress unfavorable phase transitions, severe electrolyte degradation, and CO2 gas evolution, improving the application potential of ultrahigh-nickel layered oxide cathode materials. |
| format | Article |
| id | doaj-art-97f8a23f5c664290b7a936980fc7ed80 |
| institution | DOAJ |
| issn | 3005-3315 3005-3064 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Energy Materials and Devices |
| spelling | doaj-art-97f8a23f5c664290b7a936980fc7ed802025-08-20T03:05:44ZengTsinghua University PressEnergy Materials and Devices3005-33153005-30642025-03-0131937005610.26599/EMD.2025.9370056Facile modification using organic acid molecules to neutralize residual alkaline compounds for stabilizing LiNi0.95Co0.04Mn0.01O2 cathode materialChao Zhao0Xiangshao Yin1Yuanyuan Huang2Xinyu Zhang3Weihong Jiang4Zhuo Zhou5Wenhui Tu6Xianshu Wang7Ding Wang8Jianguo Duan9Key Laboratory of Advanced Battery Materials of Yunnan Province, National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology, School of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKey Laboratory of Advanced Battery Materials of Yunnan Province, National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology, School of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKey Laboratory of Advanced Battery Materials of Yunnan Province, National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology, School of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKey Laboratory of Advanced Battery Materials of Yunnan Province, National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology, School of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKey Laboratory of Advanced Battery Materials of Yunnan Province, National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology, School of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKey Laboratory of Advanced Battery Materials of Yunnan Province, National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology, School of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKey Laboratory of Advanced Battery Materials of Yunnan Province, National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology, School of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKey Laboratory of Advanced Battery Materials of Yunnan Province, National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology, School of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKey Laboratory of Advanced Battery Materials of Yunnan Province, National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology, School of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKey Laboratory of Advanced Battery Materials of Yunnan Province, National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology, School of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaThe presence of residual alkaline compounds in the ultrahigh-nickel layered oxide cathodes (LiNixCoyMn1−x−yO2, x ≥ 0.9) aggravates structural degradation, increases surface reactivity, and promotes slurry gelation, leading to the capacity decay of batteries with these cathodes and complicating their manufacturing. Traditional approaches for addressing this issue, including direct removal, coverage, and utilization, are complex and require surface regeneration. Herein, we propose neutralizing residual alkaline compounds with 3-thiopheneboronic acid (3-TBA) to improve the performance of LiNi0.95Co0.04Mn0.01O2 (NCM) cathode material, a facile strategy that does not require any post-treatment. The suggested reaction yields a uniform and thin organic-modified layer on the surface of the NCM cathode, improving its chemical stability toward the electrolyte, as demonstrated by multiple characterization methods. The modified NCM cathode exhibited impressive cyclic and rate performances, achieving a capacity retention of 83.34% after 200 cycles at 1.0 C and a specific capacity of 162.00 mAh·g−1 at 10.0 C. Most importantly, the proposed approach can efficiently suppress unfavorable phase transitions, severe electrolyte degradation, and CO2 gas evolution, improving the application potential of ultrahigh-nickel layered oxide cathode materials.https://www.sciopen.com/article/10.26599/EMD.2025.9370056lithium-ion batteryultrahigh-nickel layered oxide cathoderesidual alkaline compoundsorganic moleculeneutralization |
| spellingShingle | Chao Zhao Xiangshao Yin Yuanyuan Huang Xinyu Zhang Weihong Jiang Zhuo Zhou Wenhui Tu Xianshu Wang Ding Wang Jianguo Duan Facile modification using organic acid molecules to neutralize residual alkaline compounds for stabilizing LiNi0.95Co0.04Mn0.01O2 cathode material Energy Materials and Devices lithium-ion battery ultrahigh-nickel layered oxide cathode residual alkaline compounds organic molecule neutralization |
| title | Facile modification using organic acid molecules to neutralize residual alkaline compounds for stabilizing LiNi0.95Co0.04Mn0.01O2 cathode material |
| title_full | Facile modification using organic acid molecules to neutralize residual alkaline compounds for stabilizing LiNi0.95Co0.04Mn0.01O2 cathode material |
| title_fullStr | Facile modification using organic acid molecules to neutralize residual alkaline compounds for stabilizing LiNi0.95Co0.04Mn0.01O2 cathode material |
| title_full_unstemmed | Facile modification using organic acid molecules to neutralize residual alkaline compounds for stabilizing LiNi0.95Co0.04Mn0.01O2 cathode material |
| title_short | Facile modification using organic acid molecules to neutralize residual alkaline compounds for stabilizing LiNi0.95Co0.04Mn0.01O2 cathode material |
| title_sort | facile modification using organic acid molecules to neutralize residual alkaline compounds for stabilizing lini0 95co0 04mn0 01o2 cathode material |
| topic | lithium-ion battery ultrahigh-nickel layered oxide cathode residual alkaline compounds organic molecule neutralization |
| url | https://www.sciopen.com/article/10.26599/EMD.2025.9370056 |
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