Hollow porous LiMn2O4 particles (PLMO) were prepared by sol?gel method using carbon spheres as template, carbon spheres were obtained by hydrothermal method. The effects of calcination temperature and the addition amount of carbon spheres on the phase formation and surface morphology were studied. The electrochemical properties of PLMO and LiMn2O4 without adding carbon spheres (LMO) were investigated. The results indicated that the honeycomb porous LiMn2O4 hollow particles were obtained at 650?750℃ for 12 h. At discharge rate 0.5C, the discharge capacity of PLMO decreased from 126 mA?h/g to 111 mA?h/g after 50 cycles, which are higher than that of LMO. At 5C discharge rate, the initial discharge capacity of PLMO is 89 mA?h/g, which is increased by about 39% compared with LMO.
Bing QIAN Xiumei SONG Junwei YUE Qingqing LIU Yaxin SUN
. Preparation of Hollow Porous LiMn2O4 Cathode Materials[J]. The Chinese Journal of Process Engineering, 2018
, 18(1)
: 190
-195
.
DOI: 10.12034/j.issn.1009-606X.217207
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