H - Electricity – 01 – M
Patent
H - Electricity
01
M
319/42
H01M 6/42 (2006.01)
Patent
CA 1043419
Alkaline Flat Cell Battery Abstract of the Disclosure A hermetically sealed flat cell with an alkaline electrolyte and a battery made out of a number of such cells Both the positive and the negative electrode layer of each cell of the battery is provided with a supporting plate preferably covering the whole outside of respective layer. Said plate incorporates a current collector, the outside of each current collector being provided at the contact area with a relatively th ick, plastic and sticky layer of che- mically inert, water repellent adhesive. Each cell is cow red with a plastics sheet that is preferably laminated and comprises two layers, the inside layer of which is chemically resistant ant heat sealable, the outside layer being mechanically tough and resistant to oxygen trans- mission. Enclosing of each cell has been carried out by means of heat sealing in a vacuum. When assembling a battery there is provided at said adhesive layer on both sides of each cell a contact member consisting of a prefe- rably spiral-shaped pressure spring with sharp edges facing opposite directions, adapted to pierce said plastic cover, the pitch of said spring allowing under pressure ample latitude of elastic movement so as to secure a firm elec- trical contact of said edges to the current collectors within each cell.
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