A gelatin-based sol-gel procedure to synthesize the LiFePO4/C nanocomposite for lithium ion batteries

作者：Gao, Mengyao; Liu, Naiqiang; Li, Zhongbo; Wang, Weikun; Li, Chengming; Zhang, Hao; Chen, Yilei; Yu, Zhongbao; Huang, Yaqin^*

来源：Solid State Ionics, 2014, 258: 8-12.

DOI：10.1016/j.ssi.2014.01.041

• LiFePO4/C nanocomposite
• Synthesis
• Gelatin
• Lithium ion battery

An additive-free gelatin-based sol-gel procedure was developed to synthesize the nanosized LiFePO4/C powders for lithium ion batteries. The as-synthesized product exhibits a narrow particle size distribution (100-300 nm), and it has a tap density of 1.42 g cm(-3). It is found that the LiFePO4/C nanocomposite cathode shows excellent cycle ability with capacity retention of 95.2% at 0.2 C after 100 cycles. Moreover, the battery has achieved an improved rate performance, and the discharge capacity of the cathode can reach 128 mAh g(-1) at 5 C.

• 出版日期2014-5-1
• 单位化工资源有效利用国家重点实验室; 北京化工大学