Discharge performance of nanostructured PbO2 microspheres as the positive active material

作者：Chen Ting; Ma Houyi^*; Kong Delong

来源：Materials Letters, 2013, 90: 103-106.

DOI：10.1016/j.matlet.2012.09.058

• Nanostructured PbO2 microspheres
• Positive active material
• Discharge capacity
• Structural effects
• Grain boundaries

As the positive active material of lead acid battery, microstructure and surface morphology of PbO2 have a strong influence on the electrochemical performance. Nanostructured PbO2 microspheres were prepared by a simple solution method with cetyltrimethylammonium bromide as a structure-directing agent. The thin positive electrode of lead acid battery was prepared by pressing the nanostructured PbO2 microspheres onto a lead alloy sheet. Furthermore, the as-prepared PbO2 microspheres delivered a discharge capacity of 101.8 mAh/g (45% of active material utilization) and displayed a good cycle life. It is believed that the special morphology plays a vital role in the enhancement of discharge performance.

• 出版日期2013-1-1
• 单位山东大学