• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Electrochemical Science >Electrodeposited PbO2 Thin Films with Different Surface Structure as Positive Plate in Lead Acid Batteries
【24h】

Electrodeposited PbO2 Thin Films with Different Surface Structure as Positive Plate in Lead Acid Batteries

机译：铅酸电池中不同表面结构的PbO 2 电沉积薄膜作为正极

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

PbO2 thin film is essential for applications in lead acid batteries system. In this work, PbO2 thin films with different surface microstructure were fabricated through electrodeposition technique by controlling the deposition current density. Though PbO2 thin films with porous structure are achieved at a high electrodeposition current density, the softening and leaching of the active materials on the electrode leads to a bad cycling charge-discharge ability. PbO2 thin film fabricated at a low current density(PbO2-20) has a compact and dense surface, and an activation process is needed to reach its maximum discharge ability with an improved cycling charge-discharge ability. Meanwhile, a porous structure is formed due to the active material expansion-contraction process, and then the discharge capacity is gradually reduced as observed in PbO2 thin films obtained at high current density. Specifically, when PbO2-20 film is assembled in a laboratory battery, the cycle charge-discharge life is 553 times at 1C with 30% depth of discharge much higher than that of PbO2 thin film electrodeposited at a high current density.
机译：PbO2薄膜对于铅酸电池系统中的应用至关重要。通过控制沉积电流密度，通过电沉积技术制备了具有不同表面微观结构的PbO2薄膜。尽管在高的电沉积电流密度下获得了具有多孔结构的PbO2薄膜，但是电极上活性材料的软化和浸出导致循环充放电能力下降。以低电流密度制造的PbO2薄膜（PbO2-20）具有致密致密的表面，需要进行活化工艺以达到其最大放电能力并改善循环充放电能力。同时，由于活性材料的膨胀-收缩过程而形成多孔结构，然后如在以高电流密度获得的PbO 2薄膜中所观察到的，放电容量逐渐降低。具体地，当将PbO 2-20膜组装在实验室电池中时，在1C下的循环充放电寿命为553倍，放电深度为30％，远高于在高电流密度下电沉积的PbO 2薄膜的循环充放电寿命。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号