Please use this identifier to cite or link to this item: https://doi.org/10.1038/ncomms14629
Title: A class of liquid anode for rechargeable batteries with ultralong cycle life
Authors: Yu J. 
Hu Y.-S.
Pan F. 
Zhang Z.
Wang Q. 
Li H.
Huang X.
Chen L.
Keywords: biphenyl
dimethyl sulfoxide
ether derivative
metal
sodium
sulfide
alkalinity
electrical conductivity
electrochemistry
electrode
life cycle analysis
redox potential
sodium
storage structure
Article
electric battery
electric conductance
electric potential
electricity
electrochemical analysis
electron
oxidation reduction potential
physical chemistry
rechargeable battery
room temperature
solubility
Issue Date: 2017
Publisher: Nature Publishing Group
Citation: Yu J., Hu Y.-S., Pan F., Zhang Z., Wang Q., Li H., Huang X., Chen L. (2017). A class of liquid anode for rechargeable batteries with ultralong cycle life. Nature Communications 8 : 14629. ScholarBank@NUS Repository. https://doi.org/10.1038/ncomms14629
Abstract: Low cost, highly efficient and safe devices for energy storage have long been desired in our society. Among these devices, electrochemical batteries with alkali metal anodes have attracted worldwide attention. However, the practical application of such systems is limited by dendrite formation and low cycling efficiency of alkali metals. Here we report a class of liquid anodes fabricated by dissolving sodium metal into a mixed solution of biphenyl and ethers. Such liquid anodes are highly safe and have a low redox potential of 0.09 V versus sodium, exhibiting a high conductivity of 1.2 × 10-2 S cm-1. When coupled with polysulfides dissolved in dimethyl sulfoxide as the cathode, a battery is demonstrated to sustain over 3,500 cycles without measureable capacity loss at room temperature. This work provides a base for exploring a family of liquid anodes for rechargeable batteries that potentially meet the requirements for grid-scale electrical energy storage. © 2017 The Author(s).
Source Title: Nature Communications
URI: https://scholarbank.nus.edu.sg/handle/10635/174494
ISSN: 2041-1723
DOI: 10.1038/ncomms14629
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