| 摘要 |
<p>PURPOSE:To uniformly disperse a gelling agent in an electrolyte in a battery can without having a concentration difference by injecting a soled diluted sulfuric acid electrolyte containing the gelling agent in the battery can in which an electrode group is housed, then charging to form electrode plates, and refluxing the sol electrolyte by the gas generated from the electrode plates at formation. CONSTITUTION:A negative electrode group consisting of non-formed positive electrode plate 2 and negative electrode plate 3, and a separator 4 made from a determined glass fiber is received in a battery can 1, and the opening part of the battery can 1 is covered with a lid 5. A colloidal silica containing, for example, about 20% by weight of SiO2, and a diluted sulfuric acid electrolyte are mixed together to prepare a diluted sulfuric acid electrolyte containing a determined % by weight of SiO2, and a determined quantity of this is injected into the battery can through an injection hole 6. After charging for a determined time to form the electrode plates, the battery can is stood to gel the electrolyte. Thus, the sol electrolyte is refluxed by the gas generated from the electrode plates at formation, and the gelling agent in the electrolyte is uniformly dispersed in the battery can without having a concentration difference, and sufficiently penetrated into the separator and the electrode plates.</p> |
