热电池薄膜电极制备及其电化学性能  

Fabrication and electrochemical properties of thin film electrode materials for thermal batteries

作　　者：原勇强[1] 高瑞[1] 兰伟[1] 杨兆堂[1] 杨潇薇[1] 刘效疆[1] 

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621999

出　　处：《太赫兹科学与电子信息学报》2015年第5期833-836,共4页Journal of Terahertz Science and Electronic Information Technology

基　　金：中国工程物理研究院科学技术发展基金资助项目(2013B0302045)

摘　　要：热电池因具有高能量密度、储存寿命长等优点被应用于特殊领域。随着电子设备的小型化，热电池也向着小型化、薄膜化发展。采用涂覆法将正极材料FeS2制备成薄膜材料，并与传统压制成型材料对比。涂覆法制备的材料厚度在120μm，电流密度为100mA·cm^-2，1A·cm^-2时，放电容量分别高达821mAh·g^-1，528mAh·g^-1，相比传统方法，放电容量增加20％～30％，电池内阻仅有81mΩ。装配成电池组的电性能更加明显，放电容量较传统提高了153％，同时在重量和体积上都具有明显的优势。Thermal batteries have been widely used for military use due to their high specific power density and long storage life. With the development of electronic devices miniaturization, smaller and thinner thermal batteries are being studied as potential power sources for some special applications. Thin film Fe S2 cathodes prepared by rolling and coating are compared with the Fe S2 pellets shaped by traditional pressing. The discharging capacities of Fe S2 thin films(thickness=120 μm) are 821 m Ah·g-1 and 528 m Ah·g-1 respectively with different current densities of 100 m A·cm-2 and 1 A·cm-2. The results show that the Fe S2 thin films have a 20%-30% higher capacity than the pellets manufactured by traditional pressing, and the resistance of thin film thermal battery is only 81 m?. In addition, compared with the traditional thermal battery, the discharge capacity of thermal battery piled by thin-films is increased by 153%, and the weight and volume are reduced greatly.

关 键 词：热电池 薄膜 高容量 

分 类 号：TM915[电气工程—电力电子与电力传动]