ABSTRACT
Yuyang Hou, Faxing Wang, Shiyong Zhao, Yuping Wu, and Teunis van Ree
5.1 Characteristics of LiFePO4 Lithium ferrous(II) phosphate (LiFePO4) is a positive electrode material for lithium-ion batteries, which, so far, has been mainly used in power lithiumion batteries [1]. It is commonly called lithium iron(II) phosphate and is also used in fertilizers. In 1996, the Japanese NTT Corporation disclosed for the first time an olivine structured compound, AyMPO4 (A is an alkali metal and M a combination of Co and Fe) as a positive electrode material for lithium-ion batteries. In 1997, Prof. John B. Goodenough and his group at the University of Texas at Austin, United States, reported the characteristics of reversible lithium intercalation/deintercalation into/from LiFePO4. However, at the initial stage, this positive electrode material did not raise much attention since its electronic and ionic conductivities are very low and
CONTENTS
5.1 Characteristics of LiFePO4 .......................................................................... 95 5.2 Structure of LiFePO4 .................................................................................... 97 5.3 Preparation Methods for LiFePO4 .............................................................99
