Energy Storage Science and Technology ›› 2017, Vol. 6 ›› Issue (6): 1280-.doi: 10.12028/j.issn.2095-4239.2017.0029

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The effect of prussian blue and its analogues containing Fe and Co on specific capacity as cathode material of lithium-ion battery

JIANG Wei 1,2, WANG Erdong1, SUN Hai1, WANG Suli1, SUN Gongquan1   

  1. 1 Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China; 2University of Chinese Academy of Sciences, Beijing 100039, China
  • Received:2017-03-24 Revised:2017-04-13 Online:2017-11-01 Published:2017-11-01

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Abstract:

Prussian blue and its analogues (PBAs) are considered as promising cathode materials of alkali metal-ion or alkaline earth metal-ion batteries due to their simple preparation process, high rate performance and low cost. Firstly, we prepared a series of PBAs containing Fe and Co, and then the crystal structure, morphology and electrochemical performance were characterized through XRD, SEM and electrochemical technologies. Finally, the interaction between Fe and Co in different structures was explored. The results suggested that in the structures of “M1—N≡≡C—M2”, by changing transition metal M1 can notable influence the electrochemical activity of transition metal M2.

Key words: prussian blue, cathode material, Li-ion battery