摘要
综述了阀控式密封铅酸蓄电池的国内外发展现状，讨论了电池密封的关键技术和氧复合原理，影响氧复合效率的主要因素是玻璃棉隔板的品质，电池的吸酸饱和度等。指出了目前ＶＲＬＡ电池存在的主要问题和失效模式，如板栅腐蚀，失水，早期容量损失。对早期容量损失做了较深入的分析，不仅对引起早期容量损失的原因和正极活性物质的放电过程机理进行了讨论，而且对胶体／晶体体系影响早期容量损失进行了研究。最后，提出了阀控式铅酸蓄电池的发展方向。
The status and development of valve regulated lead acid(VRLA)battery in the world was recounted and the sealed technology and the principle of oxygen cycle were discussed.The guality of fibreglass fless separator,adsorption acid saturation of battery are the main factors affecting the efficiency of gas recombination.The recent problems in VRLA batteries,such as positive grid corrosion and water lost,were pointed out.Whats more,a deep analysis of the premature capacity loss(PCL)of VRLA batteries was given,which not only relates to the reason for the PCL and mechanism of the process of the positive active mass(PAM),but also to the Gel/Crystal systems that influence the PCL.Finally,the future development of VRLA is raised.
出处
《电源技术》
CAS
CSCD
北大核心
1998年第6期265-269,共5页
Chinese Journal of Power Sources
