Electrochemical Properties of Li3Fe0.2Mn0.8CO3PO4 as a Li-Ion Battery Cathode
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Ceder_Electrochemical properties.pdf
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Author(s)
Matts, Ian L.
Chen, Hailong
Ceder, Gerbrand
Date Issued
June 2013
Journal
ECS Electrochemistry Letters
Publisher
Electrochemical Society
Citation
Matts, I., H. Chen, and G. Ceder. “Electrochemical Properties of Li3Fe0.2Mn0.8CO3PO4 as a Li-Ion Battery Cathode.” ECS Electrochemistry Letters 2, no. 8 (January 1, 2013): A81–A83. © 2013 The Electrochemical Society.
Version
Final published version
Abstract
Previously conducted high-throughput ab initio calculations have identified carbonophosphates as a new class of polyanion cathode materials. Li3MnCO3PO4 is the most promising candidate due to its high theoretical capacity and ideal voltage range. However, a major limitation of this material is its poor cyclability and experimentally observed capacity. In this work we synthesize Li3Fe0.2Mn0.8CO3PO4 to combine the high theoretical capacity of Li3MnCO3PO4 with the high cyclability of Li3FeCO3PO4. Li3Fe0.2Mn0.8CO3PO4 outperforms Li3MnCO3PO4 in cyclability, and shows little capacity fade over 25 cycles. The observed reversible capacity of 105 mAh/g is slightly greater than in Li3FeCO3PO4, and occurs at a higher average voltage.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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DOI of Published Version
https://doi.org/10.1149/2.009308eel
