贮存时间对锌银贮备电池隔膜的影响  

Effect of storage time on the separator for zinc-silver storage battery

作　　者：李行 吴启兵 覃韬 董亚南 靖佳欣 白羽 孙克宁 LI Hang;WU Qibing;QIN Tao;DONG Yanan;JING Jiaxin;BAI Yu;SUN Kening(Advanced Research Institute of Multidisciplinary Science,Beijing Institute of Technology,Beijing 100081,China;Beijing Key Laboratory for Chemical Power Source and Green Catalysis,School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081,China;State Key Laboratory of Advanced Chemical Power Sources,Guizhou Meiling Power Sources Co.,Ltd.,Zunyi 563003,Guizhou,China)

机构地区：[1]北京理工大学前沿交叉科学研究院,北京100081 [2]北京理工大学化学与化工学院,化学电源与绿色催化北京市重点实验室,北京100081 [3]贵州梅岭电源有限公司,特种化学电源国家重点实验室,贵州遵义563003

出　　处：《电池》2025年第2期253-258,共6页Battery Bimonthly

摘　　要：作为锌银贮备电池关键部件的隔膜在长期贮存期间的微观结构及性能的变化,直接影响电池的放电性能。研究锌银贮备电池隔膜的结构及性能随干态贮存时间变化的规律发现,经过长期贮存后的隔膜,表面形貌未产生明显变化,最大吸碱率为296%,最大纵向收缩率仅为1.67%,最大横向收缩率仅为1.25%,表明吸碱率及收缩率等物理性能仍然满足技术要求;隔膜结构发生了一定的破坏,隔膜中的O H、C H和C O含量减少,导致OH-离子电导率从0.38 S/cm下降至0.18 S/cm。As a key component of zinc-silver storage battery,the change of microstructure and performance of the separator during long-term storage directly affects the discharge performance of the battery.The change of the structure and performance of the separator of zinc-silver storage battery with dry storage time is studied.It is found that after long-term storage,the surface morphology of the separators does not change significantly.The physical properties such as alkali absorption rate and shrinkage rate still meet the technical requirements,among which the maximum alkali absorption rate is 296%,the maximum longitudinal shrinkage rate is 1.67%,the maximum transverse shrinkage rate is 1.25%.The structure of the separator is damaged to a certain extent,the contents of O H,C H and C O in the separator decrease,the OH-conductivity decreases from 0.38 S/cm to 0.18 S/cm.

关 键 词：锌银贮备电池 隔膜 微观结构 性能 贮存时间 吸碱率 收缩率 

分 类 号：TM911.14[电气工程—电力电子与电力传动]