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Patel RL, Jiang YB, Choudhury A, et al. Employing Synergetic Effect of Doping and Thin Film Coating to Boost the Performance of Lithium-Ion Battery Cathode Particles. Sci Rep. 2016;6:25293doi: 10.1038/srep25293.
Patel, R. L., Jiang, Y. B., Choudhury, A., & Liang, X. (2016). Employing Synergetic Effect of Doping and Thin Film Coating to Boost the Performance of Lithium-Ion Battery Cathode Particles. Scientific reports, 625293. https://doi.org/10.1038/srep25293
Patel, Rajankumar L, et al. "Employing Synergetic Effect of Doping and Thin Film Coating to Boost the Performance of Lithium-Ion Battery Cathode Particles." Scientific reports vol. 6 (2016): 25293. doi: https://doi.org/10.1038/srep25293
Patel RL, Jiang YB, Choudhury A, Liang X. Employing Synergetic Effect of Doping and Thin Film Coating to Boost the Performance of Lithium-Ion Battery Cathode Particles. Sci Rep. 2016 May 04;6:25293. doi: 10.1038/srep25293. PMID: 27142704; PMCID: PMC4855153.
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Sci Rep. 2016 May 04;6:25293. doi: 10.1038/srep25293.

Employing Synergetic Effect of Doping and Thin Film Coating to Boost the Performance of Lithium-Ion Battery Cathode Particles.

Scientific reports

Rajankumar L Patel, Ying-Bing Jiang, Amitava Choudhury, Xinhua Liang

Affiliations

  1. Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409, United States.
  2. TEM Laboratory, University of New Mexico, Albuquerque, New Mexico 87131, United States.
  3. Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States.

PMID: 27142704 PMCID: PMC4855153 DOI: 10.1038/srep25293

Abstract

Atomic layer deposition (ALD) has evolved as an important technique to coat conformal protective thin films on cathode and anode particles of lithium ion batteries to enhance their electrochemical performance. Coating a conformal, conductive and optimal ultrathin film on cathode particles has significantly increased the capacity retention and cycle life as demonstrated in our previous work. In this work, we have unearthed the synergetic effect of electrochemically active iron oxide films coating and partial doping of iron on LiMn1.5Ni0.5O4 (LMNO) particles. The ionic Fe penetrates into the lattice structure of LMNO during the ALD process. After the structural defects were saturated, the iron started participating in formation of ultrathin oxide films on LMNO particle surface. Owing to the conductive nature of iron oxide films, with an optimal film thickness of ~0.6 nm, the initial capacity improved by ~25% at room temperature and by ~26% at an elevated temperature of 55 °C at a 1C cycling rate. The synergy of doping of LMNO with iron combined with the conductive and protective nature of the optimal iron oxide film led to a high capacity retention (~93% at room temperature and ~91% at 55 °C) even after 1,000 cycles at a 1C cycling rate.

References

  1. Chem Rev. 2010 Jan;110(1):111-31 - PubMed
  2. Nano Lett. 2013 Feb 13;13(2):818-23 - PubMed
  3. J Am Chem Soc. 2013 Jan 30;135(4):1167-76 - PubMed
  4. Adv Mater. 2013 Sep 6;25(33):4646-52 - PubMed
  5. Nano Lett. 2009 Dec;9(12):4109-14 - PubMed

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