TITLE

Submicro-sized LiMn2O4 prepared by a sol–gel, spray-drying method

AUTHOR(S)
Chuanyun Wan; Yanna Nuli; Qiang Wu; Manming Yan; Zhiyu Jiang
PUB. DATE
January 2003
SOURCE
Journal of Applied Electrochemistry;Jan2003, Vol. 33 Issue 1, p107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Submicro-sized LiMn2O4 powders were produced by a sol-gel, spray-drying method in which a brown gel precursor was prepared via the reaction of LiOH alkaline solution with 1 M Mn(CH3COO)2. The gel precursor was then transferred into a dry precursor powder via a spray-dry process. After heating treatment the spinel LiMn2O4 powder was obtained. The composition and the crystal size of the samples were strongly affected by the spray speed in the drying process and the heating temperature. The structure and the morphology of LiMn2O4 powder were investigated by DTA, TGA, IR, XRD and SEM methods. it was discovered that submicro-sized LiMn2O4 powder could be formed under the conditions of rotating spray speed of 15 000 rpm and syntheses temperature of 700 °C. The electrochemical properties of LiMn2O4 samples in 1 M LiPF6, EC:DMC = 1:1 solution were tested by measuring the voltammograms and charge-discharge curves. The submicro-sized LiMn2O4 sample made at 700 °C has a capacity of 128 mAh g-1 and good cycle stability for Li+ intercalation reaction. This method may be applied to the industrial-scale production of superfine LiMn2O4 powder for use in lithium ion batteries.
ACCESSION #
15102791

 

Related Articles

  • Synthesis and properties of a spinel cathode material for lithium ion battery with flat potential plateau. AL-TABBAKH, Ahmed Abdulrahman Ahmed; KAMARULZAMAN, Norlida; AL-ZUBAIDI, Aseel Basim // Turkish Journal of Physics;2015, Vol. 39 Issue 2, p187 

    A potential cathode material for lithium ion battery was synthesised by combustion reaction. The thermal behaviour of the as-synthesised precursor was measured using a thermogravimetric analyser and the range of calcination temperature from 500 °C to 800 °C was determined. X-ray...

  • The anisotropy paradox of Co2+ ions in lithium ferrite. Dionne, Gerald F. // Journal of Applied Physics;4/15/1985, Vol. 57 Issue 8, p3727 

    Studies microwave power absorption and hysteresis loops on a series of ferrite materials prepared from a standard lithium ferrite spinel host with Co²+;. Experimental results of the study; Explanation on the exchange isolation of Co²+;; Discussion on cation clustering.

  • Capacity fading of LiMn2O4 electrode: Influence of calcination temperature. Son, J. T.; Park, K. S.; Kim, H. G.; Chung, H. T. // Journal of Materials Science;Jun2004, Vol. 39 Issue 11, p3635 

    Spinel-type Li-Mn oxides of formula LiMn2-xO4 were prepared by the Pechini method in the range of 600-850°C for 4 h. These spinels were investigated by X-ray powder diffraction, SEM (scanning electron microscope), ICP, chemical titration and galvanostatic cycling at 0.2C rates. The effect of...

  • Structure changes in lithium manganese spinel after high-temperature storage. Kamiyama, T.; Kobayashi, H.; Kanno, R.; Oikawa, K.; Matsumura, T.; Torii, S.; Sakai, T. // Applied Physics A: Materials Science & Processing;Dec2002 Supplement, Vol. 74 Issue 6, ps1219 

    Li[sub 1+x]Mn[sub 2-x]O[sub 4] spinels (x = 0.0-0.1) after storage at several temperatures were investigated by the Rietveld analysis of high-resolution neutron powder diffraction data. With increasing storage temperature in an electrolyte, the Mn site is likely to be more deficient. In...

  • Magnetic transitions in the ferromagnetic spinel LiZn0.5Mn1.5O4. Plumier, R.; Sougi, M. // Journal of Applied Physics;5/1/1990, Vol. 67 Issue 9, p4787 

    Presents a study which investigated magnetic transitions in the ferromagnetic spinel lithium zinc[sub0.5]manganese[sub1.5]oxygen[sub4]. Magnetic measurements; Results; Discussion.

  • Hydride lithiation of spinels LiMnO. Buzanov, G.; Nipan, G.; Zhizhin, K.; Kuznetsov, N. // Doklady Chemistry;Nov2016, Vol. 471 Issue 1, p330 

    Undoped lithiation of stoichiometric spinel using lithium hydride LiH up to the composition LiMnO was performed. A homogeneous material with a given Li: Mn ratio was obtained by mechanochemical activation with sequential annealing of a LiMnO-LiH mixture in a high-purity argon atmosphere and then...

  • Erratum: “Structure and properties of spinel Fe[sub 3]N[sub 4] and comparison to zinc blende FeN” [Appl. Phys. Lett. 80, 2904 (2002)]. Ching, W. Y.; Xu, Yong-Nian; Rulis, Paul // Applied Physics Letters;6/24/2002, Vol. 80 Issue 25, p4873 

    Presents a corrective reprint of the article 'Structure and properties of spinel Fe[sub 3]N[sub 4] and comparison to zinc blend FeN' published by the 'Applied Physics Letters' periodical in 2002.

  • Cathodic Capacity Promotion Via Narrow Range of Nano-Te(IV)-Dopings on LiMn2-xTexO4 -Spinel. Elsabawy, Khaled M.; El-Hawary, Waheed F.; Maghraby, A. El. // Advances in Applied Science Research;Apr2011, Vol. 2 Issue 2, p1 

    Samples with general formula LiMn2-xTexO4 ( where x= 0.025,0.05 mole ) were successfully synthesized through thermal decomposition of LiMnC2O4 (OAc) precursor,.The structural, micro-structural and electrochemical features of pure spinel and tellurium doped samples were investigated . The...

  • FMC-Altair Nanoparticle Link. Wood, Andrew // Chemical Week;11/21/2001, Vol. 163 Issue 43/44, p41 

    Relates the interest of FMC Lithium and Altair Nanotechnologies in forming an agreement for the development of nanolithium titanate spinel and other metal oxides for use in batteries. Information on nanolithium titanate spinels; Plans of Altair for nanomaterial development.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics