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Title: Method of sealing a collation of battery layers together
Claims: We claim: 1. The method of producing a seal around an increment of continuous, collated battery-layers, the collation including a layer having an increment on which there is a deposit of positive electrode, the collation also including a layer having an increment on which there is a deposit of negative electrode, the collation being further characterized as having the positive electrode substantially opposite the negative electrode, the method comprising the steps of: a. moving the collation of continuous battery layers; b. temporarily stopping the increment of the collation at a sealing station; c. moving an energy platen with respect to the stopped increment into a position so that the platen can transfer energy to the areas of the layers of the stopped increments surrounding the pair of opposed electrodes; and d. transferring energy from the platen to the layers in a manner, in an amount, and for a time sufficient to heat the areas of the layers surrounding the electrodes; e. subsequently maintaining pressure against the heated layers while simultaneously cooling the heated layers; f. removing the increment of the collation from the sealing station while the simultaneously advancing another increment of the collation to the sealing station; and, g. repeating steps (b), (c), (d), and (e) with respect to the other increment of the collation. 2. The method of claim 1 in which pressure is applied to the increments over the areas occupied by the electrodes before energy is transferred to the areas being sealed together. 3. The method of claim 1 in which, while the increments at the sealing station are temporarily stopped, the portions of the layers upstream from the sealing station continue to move and are accumulated by accumulator means. 4. The method of sealing a collation of battery layers, the collation including a layer on which there is a deposit of positive electrode, the collation also including a layer on which there is a deposit of negative electrode, the collation being further characterized as having the positive electrode substantially opposite the negative electrode, the method comprising the steps of: a. moving the collation of battery layers; b. temporarily stopping the collation at a sealing station; c. moving an energy platen with respect to the stopped collation into a position so that the platen can transfer energy to the areas of the stopped collation to be sealed together; and, d. transferring energy from the platen to the layers in a manner, in an amount, and for a time sufficient to heat the areas of the layers surrounding the electrodes; e. subsequently maintaining pressure against the heated layers while simultaneously cooling the heated layers; f. removing the increment of the collation from the sealing station while simultaneously advancing another increment of the collation to the sealing station; and, g. repeating steps (b), (c), (d), and (e) with respect to the other increment of the collation. 5. The method of claim 4 in which pressure is applied to the collation over the areas occupied by the electrodes before energy is transferred to the areas surrounding the electrodes. Other info: Inventors: Anderson, Kent V. (Madison, WI, US) Bilhorn, John M. (Edgerton, WI, US) Application Number: 312927 Filing Date: 1972-12-07 Publication_date: 1976-03-23 Assignee: ESB Incorporated (Philadelphia, PA) Primary Class(es): 53/329 Other Classes: US Patent Ref:
Other Refs: Primary Examiner: Mack, John H. Assistant Examiner: Feeley, H. A. Attorney: Balfour; Raymond L., Robinson; Robert H., Rossi; Anthony J. |
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