小型阀控式铅酸蓄电池质量问题分析

Analysis on quality of the small sized VRLA batteries

目前由于相当数量的小型阀控式铅蓄电池质量不可靠，如循环寿命短、自放电大、电解液超前干涸、高温敏感易热失控等，正面临着市场的严峻挑战。分析其原因主要有：生产厂家大多为小型乡镇企业，技术力量差；板栅合金材料的质量达不到规定标准；对电池“贫液”认识不足，不能正确把握有效含酸量；不能有效控制电池内气体压力，密封性能得不到保证。文中提供了解决上述问题的一些途径和有关技术数据。

The market of small sized valve regulated lead acid batteries is seriously limited by the factors, such as less reliability, lower cycle life, higher self discharge, early water consumption, thermal runaway due to excessive temperature, and so forth.The reason for the imperfect battery performance is the following:township  village enterprises with lower technical level complete these VRLA batteries production, lacking of a correct understanding of the “starved electrolyte”and the strict control of technology parameters, including grid alloy criterion,acid content, internal pressure and so on.Methods to solve the problems said above and the technical data concerned are presented in this paper.