JP2001052681A5 - Process for producing sheet battery and polymer electrolyte battery - Google Patents

Description

[0001]
Field of the Invention
The present invention relates to a method of manufacturing a sheet-like battery and a polymer electrolyte battery, and more specifically, alignment of the lead of the electrode with the electrode terminal or the lead body to the electrode terminal is easy and productivity is improved. The present invention relates to a method for producing an excellent sheet-like battery and a polymer electrolyte battery produced using the method.

  However, in a sheet-like battery having a sheet-like electrode provided with a lead as in the above-mentioned polymer electrolyte battery, since the lead of the electrode is made of a very thin metal foil, it is used as it is as an external terminal of the battery. When it is used as an electrode terminal such as a positive electrode terminal or a negative electrode terminal, it has a low mechanical strength, so it is likely to be broken, resulting in a lack of practicability. Therefore, one end of the separately prepared electrode terminal is joined to the lead of the electrode with a metal plate thicker than the lead of the electrode, the other end of the electrode is drawn out of the battery, and used for battery use It is generally used for bonding with equipment.

[0006]
[Problems to be solved by the invention]
The present invention solves the problems of the prior art as described above, and at the time of bonding them by making the relation between the width of the lead of the electrode and the width of the lead to the electrode terminal or the electrode terminal suitable. An object of the present invention is to provide a polymer electrolyte battery excellent in productivity by facilitating alignment, improving the productivity of a sheet-like battery, and applying it to a polymer electrolyte battery.

[0044]
【Effect of the invention】
As described above, in the present invention, when joining the lead portion of the electrode to the electrode terminal or the lead body to the electrode terminal, the alignment thereof is facilitated, and the productivity of the sheet-like battery is improved. By applying to a polymer electrolyte battery, a highly productive polymer electrolyte battery could be provided.

Claims (8)

Sheet-like battery having a sheet-like electrode in which an active material-containing layer is formed on at least one surface of a metal foil, and a portion where the active material-containing layer is not formed on a part of the metal foil The method for manufacturing a semiconductor device according to the present invention includes the step of bonding the lead portion to an electrode terminal of the electrode or a lead body to the electrode terminal, and the width of the lead portion is the lead to the electrode terminal or the electrode terminal A method of manufacturing a sheet-like battery, characterized in that the width is made wider than the body width. 2. The method for manufacturing a sheet-like battery according to claim 1, wherein the width of the lead portion of the electrode is made 1 mm or more wider than the width of the electrode terminal or the lead body of the electrode terminal. The method for manufacturing a sheet-like battery according to claim 2, wherein the width of the lead portion of the electrode is made 1 to 4 mm wider than the width of the electrode terminal or the lead body to the electrode terminal. A sheet-like positive electrode formed by forming a positive electrode active material-containing layer on at least one surface of a metal foil, and a sheet-like negative electrode formed by forming a negative electrode active material-containing layer on at least one surface of a metal foil A polymer electrolyte battery in which a polymer electrolyte layer is interposed and laminated to form an electrode group, and the electrode group is sealed with an outer covering material whose innermost layer is formed of a heat fusion film, at least one of the positive electrode and the negative electrode width, a polymer electrolyte battery, characterized in that wider than the width of the lead body to the electrode terminals or the electrode terminals of the electrode lead portions of the. 5. The polymer electrolyte battery according to claim 4, wherein the width of the lead portion of the electrode is made 1 mm or more wider than the width of the electrode terminal or the lead body to the electrode terminal. The polymer electrolyte battery according to claim 5, wherein the width of the lead portion of the electrode is made 1 to 4 mm wider than the width of the electrode terminal or the lead body to the electrode terminal. Claim width of the lead portion of the positive electrode wider than the width of the lead portion of the positive electrode terminal or a positive electrode terminal, wherein the width of the lead portion of the negative electrode is wider than the width of the lead portion of the negative electrode terminal or the negative terminal 4-6 The polymer electrolyte battery as described in any one of the above. A positive and negative electrodes is a plurality respectively, claim 4-7, characterized in that it comprises the plurality of positive electrode and a plurality of negative electrode and a laminated electrode group obtained by laminating through the polymer electrolyte layer between each The polymer electrolyte battery as described in any one of the above.