Electrochemical properties of chemically modified phosphoolivines as cathode materials for Li-ion batteries

被引：10

作者：

Kulka, Andrzej ^{[1
]}

Baster, Dominika ^{[1
]}

Dudek, Michal ^{[1
]}

Kielbasa, Michal ^{[1
]}

Milewska, Anna ^{[1
]}

Zajac, Wojciech ^{[1
]}

Swierczek, Konrad ^{[1
]}

Molenda, Janina ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Fac Energy & Fuels, Dept Hydrogen Energy, Al A Mickiewicza 30, PL-30059 Krakow, Poland

来源：

JOURNAL OF POWER SOURCES | 2013年 / 244卷

关键词：

LiFePO4; Doping; Cathode materials; Electrochemical properties; Chemical stability; 1ST PRINCIPLES; OCCUPANCY SITES; LITHIUM; LIFEPO4; CONDUCTIVITY; TRANSPORT; OLIVINES; IRON;

D O I：

10.1016/j.jpowsour.2013.01.156

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Li-site, Fe-site and P-site substituted LiFePO4 phosphoolivines were synthesized and examined in terms of crystal structure, electrical conductivity, charge-discharge performance in Li/Li+/LiFePO4-type cells, as well as chemical stability against the LiPF6-EC-DEC electrolyte. Despite possible improvement of electrical conductivity of the substituted phosphoolivines, it seems that the optimization of morphology and reduction of grain size is the most efficient way of improvement of electrochemical performance of LiFePO4, while chemical stability of the substituted materials remains high. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：565 / 569

页数：5

共 41 条

[1] Anisotropy of electronic and ionic transport in LiFePO4 single crystals [J].