High Rate Micron-Sized Ordered LiNi[sub 0.5]Mn[sub 1.5]O[sub 4]
Name
Ceder_High rate.pdf
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Author(s)
Ma, Xiaohua
Kang, Byoungwoo
Ceder, Gerbrand
Alternative Title
High Rate Micron-Sized Ordered LiNi0.5Mn1.5O4
Date Issued
June 2010
Journal
Journal of The Electrochemical Society
Publisher
Electrochemical Society
Citation
Ma, Xiaohua, Byoungwoo Kang, and Gerbrand Ceder. "High Rate Micron-Sized Ordered LiNi[sub 0.5]Mn[sub 1.5]O[sub 4]." Journal of The Electrochemical Society 157, no. 8 (2010): A925.© 2010 ECS - The Electrochemical Society.
Version
Final published version
Abstract
Ordered LiNi[subscript 0.5]Mn[subscript 1.5]O[subscript 4] was synthesized through a solid-state reaction. Even though the material has a particle size of 3–5μm , it shows very high rate capability and excellent capacity retention. The capacity is as high as ≈78mAh/g at a 167C discharge rate. This high discharge rate performance is consistent with first-principles calculations of the activation barrier for lithium motion, which predict the lithium diffusivity in this material to be around 10[superscript −9]–10[superscript −8]cm[superscript 2]/s . We also systematically investigated the effect of several cell components and electrode construction on the measured rate performance and conclude that care has to be taken to remove all other rate limitations from the cell to measure the rate performance of an electrode material.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1149/1.3439678
