Chung, Kyung Yoon Kim, Jong Hee Yoon, Won-Sub Kim, Hyung Sun Cho, Byung Won Kim, Kwang-Bum 2024-01-20T22:04:10Z 2024-01-20T22:04:10Z 2021-09-03 2009-01 1388-2481 https://pubs.kist.re.kr/handle/201004/132852 The condition for the occurrence of extra current peak near 3.7 similar to 3.9V in CV and the relationship between the intensity of the extra current peak and the volume of phase transformation from tetragonal to cubic phase was investigated using in situ bending beam method. It was found that the extra current peak evolved when the sample was subject to the 3 V range and its intensity increased as the excursion depth to the 3 V range was increased. The in situ bending beam method data revealed that the extra current peak accompanied the tensile strain variation which is due to the phase transformation of a residual tetragonal phase to a cubic phase. Further, it was found that the amount of the phase transformation increased as the excursion depth to the 3 V range increased, i.e. the volume of the phase transformation was proportional to the intensity of the extra current peak. It seems that the phase transformation from tetragonal phase to cubic phase cannot be completed during the voltage sweep at the 3 V peak. On the contrary, the voltage excursions to 4 V range did not affect the evolution of the extra current peak. (C) 2008 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE INC ELECTROSTATIC SPRAY DEPOSITION RECHARGEABLE LITHIUM BATTERIES ELECTRODE MATERIALS STRUCTURAL FATIGUE SPINEL ELECTRODES ION BATTERIES FILMS OXIDES The condition for the evolution of extra current peak in the cyclic voltammogram of LixMn2O4 investigated by in situ bending beam method Article 10.1016/j.elecom.2008.11.008 1 ELECTROCHEMISTRY COMMUNICATIONS, v.11, no.1, pp.212 - 215 ELECTROCHEMISTRY COMMUNICATIONS 11 1 212 215 scie scopus 000263018200056 2-s2.0-57749169487 Electrochemistry Electrochemistry Article ELECTROSTATIC SPRAY DEPOSITION RECHARGEABLE LITHIUM BATTERIES ELECTRODE MATERIALS STRUCTURAL FATIGUE SPINEL ELECTRODES ION BATTERIES FILMS OXIDES LiMn2O4 Extra current peak Phase transformation In situ bending beam method Lithium secondary batteries