Alkaline flat cell battery. [C + MnO/sub 2//Zn]

Patent · Tue Nov 29 04:00:00 EST 1977

OSTI ID:5215667

Tamminen, P J

A hermetically sealed flat cell with an alkaline electrolyte and a battery made out of a number of such cells are described. Both the positive and the negative electrode layer of each cell of the battery are provided with a supporting plate, preferably covering the whole outside of the respective layer. This plate incorporates a current collector, the outside of each current collector being provided at the contact area with a relatively thick, plastic, and sticky layer of chemically inert, water-repellent adhesive. Each cell is covered with a plastic sheet that is preferably laminated and comprises two layers, the inside layer of which is chemically resistant and heat sealable, the outside layer of which is mechanically tough and resistant to oxygen transmission. Enclosing of each cell is carried out by means of heat sealing in a vacuum. When assembling a battery, there is provided at the adhesive layer on both sides of each cell a contact member consisting of a preferably spiral-shaped pressure spring with sharp edges facing opposite directions, adapted to pierce the plastic cover. The pitch of the spring allows under pressure ample latitude of elastic movement so as to secure a firm electrical contact of the edges to the current collectors within each cell. 14 figures.

• Assignee: TIC; ERA-03-031084; EDB-78-059911
• Patent Number(s): US 4060670
• OSTI ID: 5215667
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250901* -- Energy Storage-- Batteries-- Design & Development
CARBON
CHALCOGENIDES
DESIGN
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
ENERGY STORAGE SYSTEMS
FABRICATION
HYDROGEN COMPOUNDS
HYDROXIDES
MANGANESE COMPOUNDS
MANGANESE OXIDES
METAL-METAL OXIDE BATTERIES
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PRODUCTION
TRANSITION ELEMENT COMPOUNDS
ZINC
ZINC-MANGANESE BATTERIES