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High Temperature Electrochemical Performance of Monocrystalline High-Nickel Ternary Cathode Material Improved by Co-Doping of Yttrium and Niobium Elements
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Chong LI, Nani MA, Ziyu WANG, Caihong ZHANG, Huiping WANG
Mining and Metallurgical Engineering | 2024, 44(3) : 161 - 165
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Mining and Metallurgical Engineering | 2024, 44(3): 161-165
• MATERIALS •
High Temperature Electrochemical Performance of Monocrystalline High-Nickel Ternary Cathode Material Improved by Co-Doping of Yttrium and Niobium Elements
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Chong LI, Nani MA, Ziyu WANG, Caihong ZHANG, Huiping WANG
Affiliations
  • Shaanxi Caihong New Material Co Ltd, Xianyang 712021, Shaanxi, China
Published: 2024-06-01 doi: 10.3969/j.issn.0253-6099.2024.03.034
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Aiming at the shortcomings of single crystalline high-nickel ternary cathode material, including high residual alkali on the surface, poor cycle performance at high temperature, co-doping with niobium and yttrium was proposed to modify the cathode material for improving its electrochemical performance. With monocrystalline high-nickel ternary precursor (Ni0.6Co0.1Mn0.3(OH)2) as raw material, a series of cathode materials co-doped with two different elements were synthesized by high-temperature solid-state reaction. The results show that the niobium and yttrium co-doped sample presents excellent cycling stability and rate capability at high temperature. Compared to niobium-doped sample, it can have capacity retention rate higher by 2.58 percentage points after 50 cycles at 45 ℃, and discharge capacity higher by 6.2 mAh/g at 2C charge-discharge rate.

high nickel  /  monocrystalline ternary cathode materials  /  cathode material  /  niobium-doped  /  yttrium-doped  /  co-doping  /  high-temperature electrochemical performance  /  high-temperature solid-state reaction
Chong LI, Nani MA, Ziyu WANG, Caihong ZHANG, Huiping WANG. High Temperature Electrochemical Performance of Monocrystalline High-Nickel Ternary Cathode Material Improved by Co-Doping of Yttrium and Niobium Elements[J]. Mining and Metallurgical Engineering, 2024 , 44 (3) : 161 -165 . DOI: 10.3969/j.issn.0253-6099.2024.03.034
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doi: 10.3969/j.issn.0253-6099.2024.03.034
  • Receive Date：2023-12-29
  • Online Date：2026-03-17
  • Published：2024-06-01
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  • Received：2023-12-29
Affiliations
    Shaanxi Caihong New Material Co Ltd, Xianyang 712021, Shaanxi, China
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https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2024.03.034
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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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