摘要
制备了聚苯胺/木素复合膨胀剂并应用于铅酸电池的负极中,研究了聚苯胺的含量对复合膨胀剂电化学性能及铅酸电池高倍率部分荷电状态(HRPSoC)下循环寿命的影响。结果表明聚苯胺/木素复合膨胀剂相对于木素,具有更高的析氢过电位。复合膨胀剂应用于铅酸电池负极中,改善了负极在高倍率部分荷电状态下运行的"硫酸盐化"问题,延长了铅酸电池的循环寿命。当聚苯胺/木素复合膨胀剂中聚苯胺与木素的质量比为2∶1时,铅酸电池的循环寿命高达2516次,比仅用木素作为膨胀剂的电池提高了2倍以上。
A composite of polyaniline/lignosulfonate(PAN/LS)was prepared and used as an expander additive in negative plates of lead-acid batteries.The effect of the polyaniline(PAN)component on the electrochemical performance of the composite and the high-rate partial-state-of-charge(HRPSoC)performance of the lead-acid batteries were investigated.The result shows that the PAN/LS composite expander has a higher hydrogen evolution over-potential than lignosulfonate(LS).When applied to lead-acid batteries,the"sulfation problem"of the negative plates can be inhibited and the cycle life of the batteries under the HRPSoC condition can be improved.When the mass ratio of PAN to LS is 2∶1 in the composite expander,the HRPSoC cycle life of the battery reaches 2516 times,which is two times longer than that of the battery containing only LS expander.
作者
陈远强
CHEN Yuanqiang(Key Laboratory of Optoelectronic Materials Chemistry and Physics,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China;Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China)
出处
《电子元件与材料》
CAS
CSCD
北大核心
2021年第2期150-155,共6页
Electronic Components And Materials
基金
福建省STS计划配套项目(2020T3004)
福建省STS计划配套项目(2020T3030)
泉州市第一批科技计划项目(2020G17)
福建省引导性项目(2020H0040)。
关键词
聚苯胺
木素
复合膨胀剂
铅酸电池
硫酸盐化
polyaniline
lignosulfonate
composite expander
lead-acid battery
sulfation
