To investigate the charging performance of zinc-silver batteries after discharge storage,sealed and unsealed 40 Ah zinc-silver batteries are charged after 3 months of discharge storage,and the impact of discharge storage on the subsequent charging performance of the batteries is explored.After storage,the sealed single battery cannot be charged,and the charging capacity of the unsealed single battery is 5.46 Ah,which is significantly reduced from the rated capacity of 40 Ah.Dissecting the single battery,conducting gas chromatography analysis,XRD and SEM,it is observed that the amount of electrolyte in contact with the electrode plate changed.After adding 5 mL and 10 mL of electrolyte and clamping the fixture to the single battery,the charging capacity can reach 34.34-37.59 Ah.After storage,the deformation of battery leads to a redistribution of internal electrolytes,a decrease in the amount of electrolyte in contact with the electrodes,resulting in an increase in internal resistance and a decrease in charging capacity.
关键词
锌银单体蓄电池/放电态贮存/形变/充电性能/电解液
Key words
zinc-silver single battery/discharge state storage/deformation/charging performance/electrolyte
维普
万方数据