| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method capable of preventing scattering and wetting of an electrolyte solution onto an adhesion inhibition part where the electrolyte solution of a battery container must not be adhered in a liquid injection process, and capable of injecting a specified quantity of the electrolytic solution quickly. <P>SOLUTION: The method of manufacturing a secondary battery seals an electrode plate group 10 and the electrolyte solution into a battery container 3. In a liquid injection process S3 in which the electrolyte solution is injected into the battery container 3 into which the electrode plate group 10 is inserted, the method includes: a step in which the inside of the battery container 3 is decompressed to keep the pressure thereof to be negative; a step of injecting the amount of electrolyte solution into the battery container 3; and a step in which the inside of the battery container 3 is increased in pressure to keep the pressure thereof to be positive and returned to the ambient atmosphere by a plurality of stepwise decompression from high pressure. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
