The invention discloses a high energy long-life lead-acid battery positive and negative electrode of a carbon film coated with the plate, acid resistance, oxidation resistance, high temperature resistance, excellent electrical conductivity of the carbon film strengthening of lead-acid battery active material and the grid, greatly improve the binding capacity of lead-acid battery active material and the grid, activity the material expansion contraction destroys the contact surface on the grid and reduce the high current charge discharge, thereby greatly improving the specific energy of battery, high current charge discharge capacity and cycle life. The contrast test shows that large, carbon film coated high energy long-life lead-acid battery positive and negative plates can make the specific energy of battery than conventional lead-acid battery fast charging performance is improved by more than 20%, 50% higher than the existing technology of lead-acid battery, large current discharge performance is improved by more than 60%, 100% depth of discharge cycle life is increased by more than 80%. The performance of lead-acid batteries has been improved in a revolutionary way, which can meet the severe requirements of the frequent start-up of automobiles in the drive and start and stop modes of electric vehicles.
【技术实现步骤摘要】
一种碳膜包覆的高能量长寿命铅酸蓄电池正负极板
本专利技术涉及高能量长寿命铅酸蓄电池正负极板,属于铅酸蓄电池领域。
技术介绍
随着电动车辆和内燃机汽车启停技术的发展,对各种物理化学电池提出了新的要求。现有技术的铅酸蓄电池在快速充电、高倍率大电流放电、比能量、循环寿命等方面已经无法满足电动车辆驱动和启停模式的汽车频繁启动的技术要求。造成现有技术铅酸蓄电池性能差的主要原因是由于其活性物质即铅膏和板栅之间的结合性能差,大电流充放电过程中活性物质膨胀收缩,活性物质与板栅的接触界面破坏,导致现有技术铅酸蓄电池的比能量低、大电流充放电能力差、循环使用寿命短。
技术实现思路
本专利技术以耐强酸、耐氧化、耐高温、导电性能优良的碳膜对铅酸蓄电池活性物质和板栅进行加强,大幅度提高铅酸蓄电池活性物质与板栅的结合能力,减少大电流充放电时活性物质膨胀收缩对其与板栅接触面的破坏,从而大幅度提高铅酸蓄电池的比能量、大电流充放电能力和循环寿命。本专利技术的实施方案是:采用辊压工艺将碳膜包覆在铅酸蓄电池正负极板外表面,按现有技术铅酸蓄电池正负极板的生产工艺,即可以生产出高能量长寿命铅酸蓄电池正负极板。经大量对比试验证明,高能量长寿命铅酸蓄电池正负极板可以使铅酸蓄电池的比能量比现有技术铅酸蓄电池提高20%以上,快速充电性能比现有技术铅酸蓄电池提高50%以上,大电流放电性能提高60%以上,100%放电深度的循环使用寿命提高80%以上。对现有技术铅酸蓄电池的性能具有革命性的提高,使其可以满足电动车辆驱动和启停模式的汽车的频繁启动的苛刻要求。本专利技术包括:板栅(1)、活性物质-铅膏(2)、碳膜(3)。 ...
【技术保护点】
一种碳膜包覆的高能量长寿命铅酸蓄电池正负极板,将碳膜用辊压的方法包覆在铅酸蓄电池正负极板的外表面,使碳膜与极板的活性物质紧密结合在一起,其特征是碳膜包覆在铅酸蓄电池正负极板的外表面。
【技术特征摘要】
1.一种碳膜包覆的高能量长寿命铅酸蓄电池正负极板,将碳膜用辊压的方法包覆在铅酸蓄电池正负极板的外表面,使碳膜与极板的活性物质紧密结合在一起,其特征是碳膜包覆在铅酸蓄电池正负极板的外表面。2....
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