Liquid K-Na Alloy Anode Enables Dendrite-Free Potassium Batteries

A K–Na liquid alloy allows a dendrite‐free high‐capacity anode; its immiscibility with an organic liquid electrolyte offers a liquid–liquid anode–electrolyte interface. Working with a sodiated Na2MnFe(CN)6 cathode, the working cation becomes K+ to give a potassium battery of long cycle life with an...

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Bibliographic Details
Published inAdvanced materials (Weinheim) Vol. 28; no. 43; pp. 9608 - 9612
Main Authors Xue, Leigang, Gao, Hongcai, Zhou, Weidong, Xin, Sen, Park, Kyusung, Li, Yutao, Goodenough, John B.
Format Journal Article
LanguageEnglish
Published Germany Blackwell Publishing Ltd 01.11.2016
Subjects
Acceptability
alkali-metal batteries
Anodes
dendrites
Discharge
Electrolytes
Immiscibility
Liquid alloys
Liquids
Potassium
potassium batteries
dendrites
liquid alloys
alkali-metal batteries
potassium batteries
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Summary:A K–Na liquid alloy allows a dendrite‐free high‐capacity anode; its immiscibility with an organic liquid electrolyte offers a liquid–liquid anode–electrolyte interface. Working with a sodiated Na2MnFe(CN)6 cathode, the working cation becomes K+ to give a potassium battery of long cycle life with an acceptable capacity at high charge/discharge rates.
Bibliography:Welch Foundation - No. F-1066
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ArticleID:ADMA201602633
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201602633