摘要
本文采用常规电化学测试,研究了添加铜、镍和石墨对锌电极电化学性能的影响。电化学测试结果表明,添加铜的锌电极具有较高的放电容量,较好的循环稳定性以及较稳定的中值电压。通过比较不同铜添加量对锌电极性能的影响,确定了铜的最适宜添加量为5%(质量)。恒电位极化测试证明,添加铜的锌电极不仅腐蚀电位提高,而且腐蚀电流明显降低,说明采用铜做导电剂提高了锌电极在碱性电解液中的耐蚀性能。
In this paper,the electrochemical performances of zinc electrode（including copper,nickel and graphite） were studied.The results show that,the electrode including copper shows maximum discharge capacities,better charge/discharge cycling stability and steady median potential.The effects of different copper concentration on the electrode were also investigated.The appropriate concentration of copper is 5%（wt）.The potentiostatic polarization results showed that not only the corrosion potential increased,but also the corrosion current density decreased remarkably.So the corrosion resistance of zinc electrode including copper is improved.
出处
《金属功能材料》
CAS
2011年第5期62-65,共4页
Metallic Functional Materials
关键词
锌电极
铜
耐蚀性
zinc electrode
copper
corrosion resistance
