Nickel hexacyanoferrate, a versatile intercalation host for divalent ions from nonaqueous electrolytes

JOURNAL OF POWER SOURCES

卷:325

Article

Lipson, Albert L.¹  Han, Sang-Don¹  Kim, Soojeong¹  Pan, Baofei¹  Sa, Niya¹  Liao, Chen¹  Fister, Timothy T.¹  Burrell, Anthony K.¹  Vaughey, John T.¹  Ingram, Brian J.¹ 

[1] Argonne Natl Lab, Joint Ctr Energy Storage Res, Chem Sci & Engn Div, 9700 S Cass Ave, Lemont, IL 60439 USA

关键词: Nickel hexacyanoferrate;    Magnesium battery;    Calcium battery;    XANES;    Nonaqueous;   

DOI  :  10.1016/j.jpowsour.2016.06.019

来源: Elsevier

【 摘 要 】

New energy storage chemistries based on Mg ions or Ca ions can theoretically improve both the energy density and reduce the costs of batteries. To date there has been limited progress in implementing these systems due to the challenge of finding a high voltage high capacity cathode that is compatible with an electrolyte that can plate and strip the elemental metal. In order to accelerate the discovery of such a system, model systems are needed that alleviate some of the issues of incompatibility. This report demonstrates the ability of nickel hexacyanoferrate to electrochemically intercalate Mg, Ca and Zn ions from a nonaqueous electrolyte. This material has a relatively high insertion potential and low over potential in the electrolytes used in this study. Furthermore, since it is not an oxide based cathode it should be able to resist attack by corrosive electrolytes such as the chloride containing electrolytes that are often used to plate and strip magnesium. This makes it an excellent cathode for use in developing and understanding the complex electrochemistry of multivalent ion batteries. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

Free