Enhanced electrochemical performance of Li-rich cathode materials through microstructural control

Physical Chemistry Chemical Physics : PCCP
Jon Serrano-SevillanoMontse Casas-Cabanas

Abstract

The microstructural complexity of Li-rich cathode materials has so far hampered understanding the critical link between size, morphology and structural defects with both capacity and voltage fadings that this family of materials exhibits. Li2MnO3 is used here as a model material to extract reliable structure-property relationships that can be further exploited for the development of high-performing and long-lasting Li-rich oxides. A series of samples with microstructural variability have been prepared and thoroughly characterized using the FAULTS software, which allows quantification of planar defects and extraction of average crystallite sizes. Together with transmission electron microscopy (TEM) and density functional theory (DFT) results, the successful application of FAULTS analysis to Li2MnO3 has allowed rationalizing the synthesis conditions and identifying the individual impact of concurrent microstructural features on both voltage and capacity fadings, a necessary step for the development of high-capacity Li-ion cathode materials with enhanced cycle life.

References

Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Jun 29, 2006·Journal of the American Chemical Society·A Robert ArmstrongPeter G Bruce
Apr 20, 2010·Advanced Materials·J BareñoD P Abraham
Jul 16, 2013·Nature Materials·M SathiyaJ-M Tarascon
Oct 30, 2015·Nature Communications·Alpesh Khushalchand ShuklaGuoying Chen
May 20, 2016·The Journal of Physical Chemistry Letters·Toshiyuki MatsunagaZempachi Ogumi
Jun 22, 2016·Nature Chemistry·Claude Delmas

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Citations

Jun 21, 2019·Physical Chemistry Chemical Physics : PCCP·Ajay S BangwalPrabhakar Singh
May 18, 2019·Nature Communications·Benoit Mortemard de BoisseAtsuo Yamada
Oct 4, 2020·Nature Communications·Artem M AbakumovJean-Marie Tarascon
Aug 3, 2021·The Journal of Physical Chemistry Letters·Jon Serrano-SevillanoAmaia Saracibar
Jul 23, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Shiwei ZhangYong Du
Aug 29, 2019·ACS Omega·Roberta VerrelliM Rosa Palacín
Jan 9, 2020·ACS Applied Materials & Interfaces·Ashok S MenonWilliam R Brant
Jun 15, 2019·Inorganic Chemistry·Jon Serrano-SevillanoMontse Casas-Cabanas
Sep 3, 2021·Inorganic Chemistry·Romain BerthelotMarie-Liesse Doublet

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Methods Mentioned

BETA
electron diffraction
X-ray
Scanning Transmission Electron Microscopy
electron microscopy
NMR

Software Mentioned

VESTA
FullProf
FAULTS
Vienna Ab - initio Simulation Package ( VASP )
SingleCrystal ( Crystal Maker )
CaRIne

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