摘要
以FePO4为前驱体,采用碳热还原法合成了复合正极材料LiFePO4/C。考察了煅烧温度、煅烧时间,碳含量等因素对LiFePO4组成和电化学的影响,结果表明,600℃煅烧24 h,碳含量为10%时,LiFePO4具有最佳的电化学性能,其首次放电容量为146 mAh.g-1,循环15次后容量还维持在141 mAh.g-1。
： LiFePO4/C composite cathode materials were synthesized by a novel carbothermal reduction method using glucose as a carbon resource. The effects of calcination temperature, calcination time and carbon content on the electrochemical properties of LiFePO4 were investigated. The results showed that LiFePO4 calcined at 600 ℃ for 24 h with a carbon content of 10% exhibited the best eleetroehemieal performance. The first discharge capacity of LiFePO4 at w（C） = 10% were 146 mAh · g^-1 .The discharge capacity remained 141 mAh · g^-1 after 15 cycles.
出处
《合成化学》
CAS
CSCD
2007年第2期147-149,164,共4页
Chinese Journal of Synthetic Chemistry
基金
国家自然科学基金资助项目(20376086)
教育部博士点资助项目(20030533001)
关键词
碳热还原法
LIFEPO4
电化学性能
carbothermal reduction method
LiFePO4
electrochemical performance
