| 摘要 |
PURPOSE:To promote the impregnation of a non-aqueous electrolyte into a cell element by conducting a constant current to positive and negative electrodes of the cell element for a prescribed period of time after pouring the non-aqueous electrolyte into the cell element and before sealing the cell. CONSTITUTION:A stainless negative electrode vessel 6 containing a lithium negative electrode active material 5 is arranged at an opening part of a positive electrode vessel 1, while a negative electrode active material 5 is accumulated on a positive electrode sysnthesis agent 3 via an electrolyte sysnthsis holding material 4 to construct a cell element, and thereby the captioned cell is completed to an assembly state before sealing. In this state, a discharging resistor 7 of constant resistance, e.g., of from about 100-500OMEGA is connected between the vessels 1 and 6, subjected to predischarge, and thereafter sealed to complete assembly of the cell. Hereby, the negative electrode active material 5 elntes to release metal ions, which metal ions are then migrated to the side of a positive electrode to permit the electrolyte to penetrate a portion of a fine hole in the positive electrode sysnthsis agent 3. Accordingly, the impregnation of the non- aqueous electrolyte into the cell element can be promoted with simple equipment and operation. |
