Highly crystalline LiCoPO4/C cathode has been synthesized without any impurities via single step solid-state reaction using CoHPO4?xH2O nanoplates as a precursor obtained by simple precipitation route. The electrochemical test shows specific capacity as high as 125mAh/g at charge/discharge rate of C/10. Synthesis approach for obtaining CoHPO4?xH2O nanoplate precursor and final LiCoPO4/C cathode using single step solid-state reaction have been characterized using X-ray diffraction, thermos gravimetric analyses (TGA) – differential scanning calorimetry (DSC), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The electrochemical test and cycling stability using different electrolytes, additive and separator have been investigated.
Revised: August 4, 2016 |
Published: February 25, 2016
Citation
Choi D., X. Li, W.A. Henderson, Q. Huang, S.K. Nune, J.P. Lemmon, and V.L. Sprenkle. 2016.LiCoPO4 Cathode from a CoHPO4xH2O Nanoplate Precursor for High Voltage Li-ion Batteries.Heliyon 2, no. 2.PNNL-SA-112654.doi:10.1016/j.heliyon.2016.e00081