@inproceedings{a86db46d4af64f3e8da6d72ceb92b1e2,
title = "Effect of doping cation valencies on low temperature performance of LiFePO 4/C",
abstract = "The doped and undoped LiFePO 4/C samples are prepared by two-step solid-state reaction. The X Ray Diffraction (XRD) results indicate that metal ions are successfully doped in LiFePO 4 without any unexpected phase. The Scanning Electron Microscope (SEM) shows that the particle morphologies of samples are near-spherical with about 200-300nm size which can be observed in all samples. The electrochemical tests indicate that doping oversize ions will increase electrode polarization. The limitation of the Li+ migration is intensified by doping metal ions with high valence. LiFePO 4/C samples doped with Mn 2+ and Ti 4+ behave better at low temperature, especially the one doped with Ti 4+. Battery with this Ti 4+ doped material can yield 77mAhg-1 when discharge at-20°C and 0.5C, about 26mAhg-1 higher than the undoped one.",
keywords = "Cathode, Cation doping, LiFePO",
author = "Ning Li and Borong Wu and Chuanxiong Zhou and Yonghuan Ren and Chunwei Yang and Jingwen Yao and Feng Wu",
year = "2012",
doi = "10.4028/www.scientific.net/AMR.391-392.935",
language = "English",
isbn = "9783037853337",
series = "Advanced Materials Research",
pages = "935--939",
booktitle = "Chemical Engineering and Material Properties",
note = "2011 International Symposium on Chemical Engineering and Material Properties, ISCEMP 2011 ; Conference date: 04-11-2011 Through 06-11-2011",
}