Scalable synthesis and electrochemical investigations of fluorine-doped lithium manganese spinel oxide

Hae Ri Lee, Boeun Lee, Kyung Yoon Chung, Byung Won Cho, Kwan Young Lee, Si Hyoung Oh

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


A scalable synthesis route for the preparation of fluorine-doped lithium manganese spinel was developed. The effect of 2.5% fluorine doping on the properties of aluminum-doped lithium manganese spinel was investigated by examining the electrochemical performance and structural changes. The electrochemical study indicates that the initial discharge capacity increases by about 5% while other properties, like the capacity retention and rate performance, remain almost unchanged. The structural studies indicate that no impurity phase was formed, along with only little morphological changes and a slight increase in the lattice parameter. The Mn K-edge absorption spectra clearly show that the average manganese oxidation state decreases as a result of fluorine doping and Mn LII,III -edge spectra indicate that the electronic structure of the fluorine-doped spinel changes significantly, which may alleviate the intrinsic structural instability of this material.

Original languageEnglish
Pages (from-to)396-403
Number of pages8
JournalElectrochimica Acta
Publication statusPublished - 2014 Aug 1

Bibliographical note

Funding Information:
This work was supported by the Secondary Battery R&D program of MOTIE/KEIT, [10042840,Development of LMO cathode material of high capacity (≥120 mAh/g) and high density (≥2.0 g/mL) for EV] and the KIST institutional program.


  • Electrochemical properties
  • Fluorine doping
  • Lithium manganese spinel
  • X-ray absorption spectroscopy

ASJC Scopus subject areas

  • General Chemical Engineering
  • Electrochemistry


Dive into the research topics of 'Scalable synthesis and electrochemical investigations of fluorine-doped lithium manganese spinel oxide'. Together they form a unique fingerprint.

Cite this