【摘要】 为了改进锌—空气电池空气电极的性能、配方及工艺,笔者选用憎水型聚合物聚四氟乙烯作为空气电极的制膜基材和粘结剂,对其在电极中的用量及工艺参数进行了优化研究,并利用扫描电镜对电极的表观形态进行了观察,从微观结构上对电极的结构与性能关系进行了探讨。研究结果表明,所制得的空气扩散电极的电化学性能良好,由其与锌电极组装成的电池样品放电容量高达3600mAh以上。更多还原

【Abstract】 Zinc-air battery with high energy density, low cost, and stable discharging properties is largely marketable. Domestic and overseas researchers have spent many years on this field, while one of the most important technologies which hinder its industrial production in large scale, is the manufacture of air electrode. To solve this problem, hydrophobic polymer polytetrafluoroethylene (PTFE) was tried to be applied as the matrix and adhesion agent of air electrode. In order to optimize the amount of PTFE in air electrode, mechanical properties, polarization curve, and discharging curve of a group of air electrodes were measured with different PTFE proportion.更多还原