三种负极材料添加对铅酸电池循环寿命影响

通过在铅酸电池负极添加1%的碳粉、TiO_2和SiO_2,研究了负极材料添加对铅酸电池循环寿命的影响。结果表明,在负极活性物质添加碳导致化成时间增加。添加碳电极在第一次PSoC循环中比含TiO_2电极表现更加出色。在第二次PSoC循环中含SiO_2电极寿命最低。在第二次PSoC循环中含碳电极没有比含TiO_2电极表现更加出色。添加碳和TiO_2显著增加电极循环寿命。在PSoC循环中,在电极中添加碳和TiO_2具有重要作用,可以获得低的充电电压和降低负极孔隙量级,这些机制改善了电极接受充电电流的能力,限制了硫酸盐晶体的长大。在PSoC循环高电流放电条件下,电池内阻具有重要影响,导致显著的初始电压降和影响电极的循环寿命。

Effect of three additives doped in negative electrodes on cycle life of lead-acid battery

Experiments were made with negative lead-acid battery electrodes doped with 1％ of powdered carbon,titanium dioxide and silicone dioxide.It turned out that addition of carbon to the negative active mass caused an increase of the time of effective formation.During accelerated cycling in the PSoC regime,the electrode with carbon had in the course of the first PSoC run better properties than the electrode with titanium dioxide.The electrode with silicone dioxide performed the lowest cycle life.In the second PSoC run the electrode with carbon did not show a markedly better performance than the electrode with titanium dioxide.The positive effect of both carbon and titanium dioxide additives on the electrode cycle life was evident.