摘要
充电过程中电池析气量是阀控式铅酸电池的重要指标。研究了在电解液中加入H3PO4对电池析气性能的影响,结果表明加入20g/L的磷酸可以将电池在过充电期间的析气量减少30%,在完全密封状态下过充电时电池内压平台显著下降。另外,还研究了在铅膏中加入不同量的磷酸对电池放电性能和循环寿命的影响,结果表明磷酸的加入对电池的放电性能没有明显的影响,对电池循环寿命的影响尚有待进一步研究。
Gas evolution volume during charge is one of the most important characteristics of valveregulated leadacid battery(VRLAB). The effect of adding H3PO4 in electrolyte on gas evolution volume of VRLAB was researched. The results show that the gas evolution volume is reduced by 30% by adding 20 g/L H3PO4 and the inner pressure plateau is also decreased during overcharge at complete sealing condition. Moreover, the effects of adding H3PO4 with various concentration in positive paste on discharge performance and cycle life were studied. The results show that adding H3PO4 in positive paste has no effect on discharge performance and its effect on cycle life needs further research.
出处
《电源技术》
CAS
CSCD
北大核心
2003年第B05期189-192,共4页
Chinese Journal of Power Sources
关键词
阀控式铅酸蓄电池
电池性能
磷酸
循环寿命
电解液
正极板栅
valve-regulated lead-acid battery(VRLAB)
H_3PO_4
inner pressure
gas evolution volume
cycle life
