Defect chemistry for electrochemical Li insertion reaction of Lithium iron silicate

由于我国矿产资源丰富，硅酸铁锂作为二次电池的电极材料一直是研究的热点。众所周知，这种材料具有低电子电导率，因此使用实验和计算技术对电子和离子传导机制给予了特别关注。结果表明，Li/Fe/Vac的排列方式随荷电状态的变化而变化，离子的排列方式对氧化物电极的离子电导率有显著影响。

This study have been focused on lithium iron silicates as electrode materials for rechargeable battery due to abundance of mineral resources. It is known that this material suffers from low electronic conductivity, so that special attention has been paid to electronic and ionic conduction mechanism using experimental and computational techniques. The results indicate that arrangement of Li/Fe/Vac changes with state of charge, and the arrangements of ions cause significant effect for ionic conductivity in oxide electrodes.