锌基电池碱性电解液低温研究  

Study on Alkaline Electrolyte in Low Temperature for Zinc Based Batteries

作　　者：李济澜 李梅 LI Ji-lan;LI Mei(School of Chemistry and Materials Engineering,Liupanshui Normal University,Guizhou Liupanshui 553004,China)

机构地区：[1]六盘水师范学院化学与材料工程学院,贵州六盘水553004

出　　处：《广州化工》2022年第11期62-63,84,共3页GuangZhou Chemical Industry

基　　金：六盘水师范学院高层次人才科研启动基金资助(No:LPSSYKYJJ202006);贵州省科技厅、六盘水市科技局、六盘水师范学院联合基金资助(黔科合J字LKLS[2013]21号)。

摘　　要：锌基电池大多采用碱性水溶液电解液,在低温下常常容易结冰凝固,电导率降低,导致电池性能大大降低。本文主要研究了不同浓度的氢氧化钾溶液在低温条件下的冷凝情况。研究发现,低温(-18℃)下,1 mol/L KOH溶液全部结冰变为固态,而6 mol/L KOH溶液均未结冰保持溶液状态。另外比较研究室温(25℃)和低温(0℃)条件下6 mol/L KOH溶液的电导率,发现低温(0℃)条件下6 mol/L KOH溶液的电导率相比室温下的电导率普遍低得多,大概降低将近一半左右。Zinc based batteries mostly use alkaline aqueous electrolyte,which is often easy to freeze and solidify at low temperature,and the conductivity is reduced,resulting in greatly reduced battery performance.The condensation of different concentrations of potassium hydroxide solution at low temperature was studied.It was found that at low temperature(-18℃),1 mol/L KOH solution was frozen and became solid,while 6 mol/L KOH solution was not frozen and remained in the solution state.In addition,the conductivity of 6 mol/L KOH solution at room temperature(25℃)and low temperature(0℃)was compared.It was found that the conductivity of 6 mol/L KOH solution at low temperature(0℃)was much lower than that at room temperature,about half lower.

关 键 词：锌基电池 碱性电解质溶液 氢氧化钾溶液 电导率 

分 类 号：TM912.2[电气工程—电力电子与电力传动]