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HomeMaterials Science ForumMaterials Science Forum Vol. 960Improved Electrochemical Performance of Nd3+-...

Improved Electrochemical Performance of Nd³⁺- Doped LiNi_0.5Mn_1.5O₄ Cathode Material for 5 V Lithium-Ion Batteries

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Abstract:

Spinel powders of Nd-doped LiNi_0.5Nd_xMn_1.5₋_xO₄ with different Nd³⁺ contents (x = 0, 0.01, and 0.02) have been synthesized by a solid-state ball milling method. The samples was characterized by XRD, SEM and EDS. XRD shows the doping of Nd³⁺ did not destroy the formation of spinel LNMO.The results show that LiNi_0.5Nd_0.01Mn_1.₄₉O₄ sample exhibits a higher rate performance with specific discharge capacities of 134.8, 137.2, 136.5, 130.4, 123.8, 106.4, and 83.1 mAh g⁻¹at 0.2, 0.5, 1, 2, 3, 5, and 7 C (1 C = 140 mAh g⁻¹), respectively. The results indicate that the Nd³⁺ doping could reduce the electrode polarization and enhance the rate capacities.

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Materials for Modern Technologies V

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Periodical:

Materials Science Forum (Volume 960)

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244-249

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https://doi.org/10.4028/www.scientific.net/MSF.960.244

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Online since:

June 2019

Authors:

Ai Jia Wei*, Wen Li, Li Hui Zhang, Zhen Fa Liu

Keywords:

LiNi_0.5Mn_1.5O₄, Nd³⁺- Doping, Solid-State Ball Milling

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© 2019 Trans Tech Publications Ltd. All Rights Reserved

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