Synthesis and Electrochemical Properties of Cathode Materials Na(Ni0.5Mn0.5)O2 for Na Ion Batteries

doi:10.12068/j.issn.1005-3026.2016.11.013

Journal of Northeastern University Natural Science ›› 2016, Vol. 37 ›› Issue (11): 1578-1581.DOI: 10.12068/j.issn.1005-3026.2016.11.013

• Materials & Metallurgy • Previous Articles Next Articles

Synthesis and Electrochemical Properties of Cathode Materials Na(Ni_0.5Mn_0.5)O₂ for Na Ion Batteries

LIU Guo-qiang， LI Yue， DU Yu-long

School of Metallurgy， Northeastern University， Shenyang 110819， China.

Received:2015-09-09 Revised:2015-09-09 Online:2016-11-15 Published:2016-11-18
Contact: LIU Guo-qiang
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Abstract

Abstract: Layered structure Na(Ni_0.5Mn_0.5)O₂ oxide was synthesized using CH₃COONa， Ni(CH₃COO)₂·4H₂O and Mn (CH₃COO)₂·4H₂O as starting materials after dissolution， drying and calcining. The crystal structure， morphology of the prepared sample was investigated by XRD and SEM. There was small amount of NiO phase in the product， and the product is of layered structure. Their particles were less than 5μm and there was particle aggregation. The charge-discharge testes for the samples were also carried out. The prepared sample exhibited good rate capability. It delivered a capacity of 124，121，116.7，110.6 and 73.8mA·h/g at 0.1，0.2，0.5，1 and 5 rate，respectively. After 30 cycles， its capacity retention ratio was 94.8% at 25℃ and 91.1% at 55℃. It can be used as cathode material for sodium ion batteries.

Key words: layered structure NaNi_0.5Mn_0.5O₂, cathode materials, preparation, sodium-ion batteries, electrochemical properties

CLC Number:

TM911

LIU Guo-qiang， LI Yue， DU Yu-long. Synthesis and Electrochemical Properties of Cathode Materials Na(Ni_0.5Mn_0.5)O₂ for Na Ion Batteries[J]. Journal of Northeastern University Natural Science, 2016, 37(11): 1578-1581.

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Synthesis and Electrochemical Properties of Cathode Materials Na(Ni_0.5Mn_0.5)O₂ for Na Ion Batteries

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