Electrochemical performance of SiO2-coated LiFePO4 cathode materials for lithium ion battery

Plate-type LiFePO4 nanocrystals by low temperature polyol-assisted solvothermal reaction and its electrochemical properties

“…However, despite these advantages, its unimpressive rate performance due to intrinsic problems of low ionic and electronic conductivities still remain a major obstacle for commercial applications. Progressive efforts to circumvent this drawback by carbon/oxides coating on particle surface [2][3][4], developing composites via mixing conductive materials [5][6][7], cation substitution [8][9][10][11], particle-size minimization [12,13], and customizing particle morphologies [14][15][16][17][18] have been undertaken. Especially, nanometer-sized electrodes have been intensively investigated for high energy/power density applications as the advantage of using nanometer-sized electrodes remains two-fold.…”

Facile Fabrication of 3D SiO2@Graphene Aerogel Composites as Anode Material for Lithium Ion Batteries

“…In addition, comparing with the reported bare SiO 2 nanomaterials [13][14][15][16] and SiO 2 -based composites [12,[17][18][19][20][21][22][23][24][25][26][27], the asprepared SiO 2 @GA composites display similar or even better electrochemical performance, indicating the composites may be used as a promising anode material in LIBs. …”

“…However, the low electronic conductivity and the strong Si-O bond of SiO 2 hinder its applications as an electrode material for LIBs. In order to overcome these problems, several strategies have been made to overcome these problems by preparing SiO 2 nanoparticles [13,14], SiO 2 nanotubes [15], SiO 2 thin films [16] and SiO 2 -based composites [12,[17][18][19][20][21][22][23][24][25][26][27]. Among them, high performance was achieved by doping SiO 2 with carbon or graphene with high conductivity and good elasticity [12,18,[22][23][24][25][26].…”

Synthesis, characterization and electrochemical performances of MoO2 and carbon co-coated LiFePO4 cathode materials

“…Recently, some new methods have been explored to enhance electrochemical performances of LiFePO 4 , such as oxide coated or modified LiFePO 4 /C composites. Li et al [20] proposed that SiO 2 coated LiFePO 4 /C effectively enhanced the cycling capacity and reduced capacity fading at high temperature and alleviated the cell impedance. Liu et al reported that the electrochemical lithiumion deintercalation-intercalation processes of CeO 2 modified LiFePO 4 electrodes were improved compared to the pristine www.elsevier.com/locate/ceramint LiFePO 4 electrode [21].…”