Park, Sung Bin Eom, Won Sob Cho, Won Il Jang, Ho 2024-01-21T02:31:10Z 2024-01-21T02:31:10Z 2021-09-01 2006-09-13 0378-7753 https://pubs.kist.re.kr/handle/201004/135124 The structure and electrochemical properties of Cr doped LiNi0.5-xMn1.5O4 cathodes with different Cr contents (x = 0.00, 0.01, 0.03, and 0.05) were investigated by X-ray diffraction, SEM, cyclic voltammetry, charge-discharge tests, and thermogravimetric analysis. In particular, restoration of Li in the cathode during intercalation was carefully analyzed by employing heating-cooling cycles of thermogravimetric technique. Results showed that the initial discharge capacity and capacity retention of the LiNi0.5-xMn1.5CrxO4 cathode were improved as the Cr content was increased. Thermal analysis and CV test results suggested that the improvement of the electrochemical properties of the Cr doped LiNi0.5-xMn1.5CrxO4 cathode was attributed to the high oxygen affinity of the Cr, which reduced oxygen deficiency and improved structural stability of the cathode. (c) 2005 Elsevier B.V. All rights reserved. English ELSEVIER SPINEL LIMN2O4 LICRYMN2-YO4 VOLTAGE CO PERFORMANCE BATTERIES POWDERS PHASES NI Electrochemical properties of LiNi0.5Mn1.5O4 cathode after Cr doping Article 10.1016/j.jpowsour.2005.10.099 1 JOURNAL OF POWER SOURCES, v.159, no.1, pp.679 - 684 JOURNAL OF POWER SOURCES 159 1 679 684 scie scopus 000241012000113 2-s2.0-33748050476 Chemistry, Physical Electrochemistry Energy & Fuels Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Materials Science Article SPINEL LIMN2O4 LICRYMN2-YO4 VOLTAGE CO PERFORMANCE BATTERIES POWDERS PHASES NI LiNi0.5Mn1.5O4 doping chromium lithium-ion batteries