The optimum conditions for air electrode preparation were shown as follow : 20 % ptfe and 20 % mno2 in active layer , thickness of active layer 0 . 15 - 0 . 25mm and the ratio of active carbon to ethine black 4 : 1 ; 60 % ptfe in the gas diffusion and waterproof layer , employing na2so4 as pore - making agents , thickness 0 . 35 - 0 . 45mm , colding forming and layer sequence catlytic layer / gas diffusion and waterproof layer / current collector layout ; employing 40 meshed nickel screen as current collector and thermal treatment temperature over 200 确定了制备空气电极的优化工艺条件，催化层中ptfe含量约20 ， mno _ 2的最佳含量约为20 ，催化层中活性炭和乙炔黑的比例为4 ： 1 (质量比) ，厚度在0 . 15 - 0 . 25mm之间。防水透气层中ptfe的含量约为60 ，以无水硫酸钠作为造孔剂，厚度一般为0 . 35 - 0 . 45mm 。电极各层采用催化层/防水透气层/集流体的排布方式，冷压成型，热处理对空气电极的性能影响较大，热处理温度不低于200 。
