| 摘要 |
PURPOSE:To improve the interfacial performance between a polyelectrolyte film and a porous electrode so as to manufacture a battery of high capacity and long service-life by applying a non-polar organic solvent having a polyelectrolyte dispersed therein to the surface of the electrode, and then drying or curing the applied solvent. CONSTITUTION:A porous electrode 13 of a positive-electrode active-material having air gaps therein is arranged on a stainless-steel positive-electrode current collecting body 11, and then a polyelectrolyte film 19 is arranged on the porous electrode 13 in such a manner as to be united with the electrode 13 of the positive-electrode active-material. Then a lithium l backed with a negative-electrode current collecting body 33 made of nickel is stuck on the film, and the whole of the resultant laminate is covered with a casing material 35. In this case, the film 19 is manufactured by first dispersing a polyelectrolyte in a non-polar organic solvent, adjusting the thickness of the resultant polyelectrolyte-dispersed solution, then applying the solution to the surface of the electrode 13 so as to form an applied film and subsequently drying the film. This process can improve the interfacial performance between the film 19 and the electrode 13 while being able to manufacture a battery of high capacity and long service-life. The amount of water mixed in the polyelectrolyte-dispersed solution can also be lessened since the non-polar solvent is used in preparing the solution. |
