Primary flat cell
First Claim
1. In a primary dry cell, a sealed flexible non-conductive plastic envelope, and an assembly of active cell elements within said envelope including a flexible pouch containing a fluid electrode mass, a first pouch wall including a flexible sheet of separator material which is absorbant to and retains liquid electrolyte on one side of said mass, a second pouch wall including a second flexible sheet of material which contains said mass on an opposite face of said mass from said first pouch wall, and a face-to-face bond between marginal portions of said first wall and said second wall and surrounding said fluid electrode mass.
4 Assignments
0 Petitions
Accused Products
Abstract
There is disclosed a primary cell for batteries having a sealed, flexible, non-conductive envelope for the active elements of a cell. A subassembly of a combination of the active elements comprises a pouch containing a fluid electrode mass and having a separator sheet included in one wall thereof adapted to be positioned in the envelope with the separator sheet between the enclosed electrode mass and the opposite polarity electrode. The electrode mass-separator subassembly is made up of sheets of flexible material positioned on opposite faces of the electrode mass and bonded together as by face-to-face fusion of the materials of the sheets around their superimposed perimeters to enclose the electrode mass.
36 Citations
10 Claims
- 1. In a primary dry cell, a sealed flexible non-conductive plastic envelope, and an assembly of active cell elements within said envelope including a flexible pouch containing a fluid electrode mass, a first pouch wall including a flexible sheet of separator material which is absorbant to and retains liquid electrolyte on one side of said mass, a second pouch wall including a second flexible sheet of material which contains said mass on an opposite face of said mass from said first pouch wall, and a face-to-face bond between marginal portions of said first wall and said second wall and surrounding said fluid electrode mass.
- 8. A flexible electrode-separator packet adapted to be inserted in a primary cell casing during assembly of a primary cell comprising a fluid electrode mass, a first wall of said packet on one side of said electrode mass including a flexible sheet of a first material which is absorbant to and capable of retaining liquid electrolyte of the cell, a second wall of said packet of a flexible sheet material on a side of said mass opposite the one side and means bonding said first wall to said second wall in face-to-face relationship in a continuous junction enclosing said electrode mass.
Specification