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Mechanism for Influence of Atomic Layer Deposition of Al2O3 on Spinel LiNi0.5Mn1.5O4 Cathode Material
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Qian LI1, Yan ZHAO1, Yaru CUI1, Shuoran WANG1, Na HUANG1, Changlin LI1, Wenpei WANG1, Hongzhou MA1, Jinjing DU1, Xihong HE1, Yaqing WENG2
Mining and Metallurgical Engineering | 2024, 44(4) : 8 - 12
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Mining and Metallurgical Engineering | 2024, 44(4): 8-12
• SPECIAL ISSUE: BATTERY MATERIALS •
Mechanism for Influence of Atomic Layer Deposition of Al2O3 on Spinel LiNi0.5Mn1.5O4 Cathode Material
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Qian LI1, Yan ZHAO1, Yaru CUI1, Shuoran WANG1, Na HUANG1, Changlin LI1, Wenpei WANG1, Hongzhou MA1, Jinjing DU1, Xihong HE1, Yaqing WENG2
Affiliations
  • 1.School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China
  • 2.Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330012, Jiangxi, China
Published: 2024-08-01 doi: 10.3969/j.issn.0253-6099.2024.04.002
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To improve the interfacial stability of spinel phase LiNi0.5Mn1.5O4 cathode material in deeply charged state, a nanoscale Al2O3 film was deposited on the surface of single-crystal LiNi0.5Mn1.5O4 by atomic layer deposition in a controlled manner. The modified cathode material exhibits excellent long-cycle performance and corrosion resistance (with capacity retention rate up to 94.7% after 500 cycles at 1C). The surface and interface analysis shows that the nanoscale Al2O3 coating deposited by atomic layer deposition technology can significantly inhibit the corrosion reaction between material and electrolyte, and also constrain the irreversible dissolution and precipitation of transition metal ions. In addition, AlF3 produced by HF surface etching can enhance corrosion resistance of LiNi0.5Mn1.5O4 cathode material, which can thus improve its long-cycle performance and the service performance at high voltage.

lithium-ion battery  /  LiNi0.5Mn1.5O4  /  cathode material  /  atomic layer deposition  /  Al2O3  /  surface modification
Qian LI, Yan ZHAO, Yaru CUI, Shuoran WANG, Na HUANG, Changlin LI, Wenpei WANG, Hongzhou MA, Jinjing DU, Xihong HE, Yaqing WENG. Mechanism for Influence of Atomic Layer Deposition of Al2O3 on Spinel LiNi0.5Mn1.5O4 Cathode Material[J]. Mining and Metallurgical Engineering, 2024 , 44 (4) : 8 -12 . DOI: 10.3969/j.issn.0253-6099.2024.04.002
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Year 2024 volume 44 Issue 4
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Article Info
doi: 10.3969/j.issn.0253-6099.2024.04.002
  • Receive Date：2024-04-23
  • Online Date：2026-03-18
  • Published：2024-08-01
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  • Received：2024-04-23
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Affiliations
    1.School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China
    2.Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330012, Jiangxi, China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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