一种新型锂离子电池有机正极材料-聚硫化冉酸(PSCA)的合成及表征  

Synthesis and Characterization for a New Organic Cathode Material of Lithium-ion Batteries——Poly Sulfurized Chloranilic Acid(PSCA)

作　　者：刘凯[1] 郑建明[1] 钟贵明[1] 杨勇[1] 

机构地区：[1]厦门大学固体表面物理化学国家重点实验室化学化工学院化学系,福建厦门361005

出　　处：《电化学》2009年第3期245-249,共5页Journal of Electrochemistry

摘　　要：成功合成了一种新型锂离子电池正极材料—聚硫化冉酸(PSCA).固体核磁13C谱、FT-IR及电化学等测试表明,氯冉酸经过硫化之后,硫取代氯的位置而得到目标产物聚硫化冉酸(PSCA).在1.5～3.6V的电位区间内,以15mAh/g的电流密度作充放电测试,首次放电比容量高达287.6mAh/g,循环100圈后容量依然保持为169.9mAh/g.A new organic cathode material, poly sulfurized chloranilic acid（ PSCA）, has been successfully synthesized for lithium-ion batteries. 13C solid state NMR and FTIR results indicated that the chorine in chronailic acid was substituted by sulfur after sulfurization. The electrochemical measurements showed that the initial discharge capacity of PSCA was up to 287.6mAh/g, and 169.9 mAh/g still remained after 100 cycles when cycled between 1.5 - 3.6 V at the current density of 15 mA/g.

关 键 词：氯冉酸 锂离子电池 有机正极材料 醌基基团 

分 类 号：TM912[电气工程—电力电子与电力传动]