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Construction and Testing of Coin Cells of Lithium Ion Batteries
Published on: August 2, 2012
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Prussian blues as a cathode material for lithium ion batteries.
Lian Shen1, Zhaoxiang Wang, Liquan Chen
1Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing,100190 (P. R. China), Fax: (+86) 10-82649050.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|August 12, 2014
Summary
Two iron cyanide compounds, Prussian blues, were synthesized for lithium-ion applications. Cubic FeFe(CN)6 demonstrated superior performance compared to nanosized Fe4[Fe(CN)6]3.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Prussian blues and their analogues exhibit diverse chemical and structural properties.
- Their open framework structures facilitate lithium-ion transport and storage.
- These materials are promising for energy storage applications.
Purpose of the Study:
- To synthesize two Prussian blue analogues using a co-precipitation method.
- To evaluate their potential as electrode materials for lithium-ion batteries.
- To compare the electrochemical performance of nanosized and cubic Prussian blues.
Main Methods:
- Co-precipitation synthesis of Prussian blue analogues.
- Characterization of synthesized materials.
- Electrochemical testing for reversible capacity, cycling, and rate performance.
Main Results:
- Nanosized Fe4[Fe(CN)6]3 delivered a reversible capacity of 95 mAh/g.
- Cubic FeFe(CN)6 achieved a reversible capacity of 138 mAh/g.
- FeFe(CN)6 exhibited superior cycling stability and rate performance over Fe4[Fe(CN)6]3.
Conclusions:
- Prussian blue analogues are viable candidates for lithium-ion battery electrodes.
- Cubic FeFe(CN)6 shows enhanced electrochemical properties compared to its nanosized counterpart.
- The structural characteristics significantly influence the performance of Prussian blues in energy storage devices.
