| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus of producing flat batteries which assures batteries of high liquid injection accuracy, by impregnating an electrode assembly placed in a housing case with nonaqueous electrolyte solution, without leaving it standing in the atmosphere or in a depressurized condition over long times, to suppress variation in the amount of liquid injection of the electrolyte solution and component changes in the solution. <P>SOLUTION: When nonaqueous electrolyte solution is sucked or injected in an upper case 1 in which the electrode assembly 2 is placed, the solution is temporarily stored in a syringe 11 for the nonaqueous electrolyte solution sealed with a injection piston 8 at a suction stage A. After it is moved to an injection stage B, the solution is supplied by the injection piston 8 at high accuracy. When the solution comes into contact with an injection guide ring 13, the surface tension of the solution, generated on the electrode assembly 2, is broken and by covering the entire circumference and entire surface, the assembly 2 is covered and the case 1 and the assembly 2 is filled with the solution. <P>COPYRIGHT: (C)2007,JPO&INPIT |
