聚1-氨基蒽醌在二次锂电池正极材料中的应用

The Application of Poly(1-aminoanthraquinone) for Positive Electrode Material in Lithium Secondary Battery

采用化学方法合成聚1-氨基蒽醌并用于二次锂电池正极材料,通过红外光谱、扫描电镜、粒度测试、循环伏安以及充放电测试等方法对材料的官能团结构、微观形貌、颗粒大小以及电化学性能等进行了研究与分析.实验表明,与金属锂组成二次锂电池后,聚1-氨基蒽醌达到了218.3mAh·g-1的首次放电容量,经过25次循环后仍可保持较高的充放电效率.由于材料具有较高的能量密度且不含对环境有污染的元素S,因此是二次锂电池非常有希望的正极材料.

Poly (1-aminoanthraquinone) is synthesized by chemical method and used as positive electrode in rechargeable lithium battery. Using the techniques of infrared (IR) spectrum, scan electronic microscopy (SEM), granularity, cyclic voltammograms (CVs) and charge-discharge, the function group, microscopic structure, particulate size and the electrochemical performance of the polymer are studied and analyzed. When used in lithium second battery with lithium, the initial discharge capacity of poly (1-aminoandiraquinone) is 218. 3 mAh (.) g (-1), it can keep excellent cycle efficiency after 25 charge-discharge cycles. In virtue of its high energy density and good cycling capability, the poly (1-aminoanthraquinone) is a promising positive electrode material for lithium secondary battery.