摘要
研究了用热形成法在钛表面制备的钛基氧化物半导体(N1、N2)以及半导体上电镀铅后作为正极板栅的可行性,并与铅锑合金、铅钙合金板栅进行了单电极模拟电池对比实验,实验条件完全相同。考核标准参照GB5008.1 91启动电池标准进行。实验结果表明:经过镀铅后的N2钛基氧化物板栅(复合钛拉网板栅)在与铅基合金板栅相同膏量的情况下,容量均能达到设计值的要求;寿命经过4个大循环单元后,铅基合金腐蚀断裂,而复合钛拉网板栅仍然完好,没有明显腐蚀,只是活性物质有些脱落。说明复合钛拉网板栅无论从导电性还是耐腐蚀性均能满足铅酸蓄电池正极板栅的要求,而且其具有质量轻、高强度、优良的耐腐蚀性能,对于提高铅酸蓄电池比能量、延长蓄电池寿命具有非常重要的意义。
The feasibility of using the doped semiconducting oxide layer prepared on the Ti substrate (N 1 and N 2) or Tibased semiconductor electroplated with PB (Pb/N 2/Ti) as the positive electrode grids was studied. The comparison experiments of the monoelectrode simulative batteries with the Tibased oxide grid, the PbSb alloy grid and the PbCa alloy grids were carried out at the same condition. The test standard is referred to GB 5008.191 Start Batteries Standard. The test results show that the capacity of the N 2 Tibased oxide grid electroplated with Pb (i.e. the composite Ti expand grid) using the same amount lead paste as the Pbbased alloy grid meets the designed specification. After 4 cycles, the Pbbased alloy grid is broken whereas the composite Ti expand grid is in good condition and has no obvious corrosion except the little shedding of active material. That means, the composite Ti expand is qualified, either in conductivity or in corrosion resistance, as the positive grid for leadacid battery. Its advantages, such as light weight, high density and good corrosion resistance characteristic, are important to improve the specific energy and cycle life of leadacid battery.
出处
《电源技术》
CAS
CSCD
北大核心
2003年第B05期193-196,共4页
Chinese Journal of Power Sources
