| 摘要 |
PURPOSE:To reduce the scattering of the amount of electrolyte and the concentration of electrolyte after completion of formation by pouring electrolyte into a plurality of cells each of which is formed by covering a plate group with an outer jacket, and connecting in series each cell with its thickness constant, then charging the sells for formation. CONSTITUTION:A plate group comprising a positive plate welded to a post, a negative plate, and a separator is covered with an outer jacket made of thermoplastic film or sheet to form a cell, then a plurality of cells are formed. After pouring electrolyte into each cell, the posts are connected in series with the thickness of each cell constant, and the cells are charged for formation. This formation makes the shrinkage ratio of separator in each cell constant, and this makes the amount of electrolyte contained in the separator constant. Therefore, the scattering of the amount of electrolyte and the concentration of electrolyte is reduce and the electrochemical performance of a battery is stabilized. |
