Process and apparatus for the production of a positive...

Details Process and apparatus for the production of a positive... Process and apparatus for the production of a positive...

H - Electricity

01

M

H01M 4/74 (2006.01) H01M 4/04 (2006.01) H01M 4/50 (2006.01) H01M 4/58 (2006.01)

Patent

CA 2041969

Abstract of the Disclosure Positive ribbon electrodes for primary and secondary cells are produced in a dry process wherein two strips of active material in powder form, preferably comprised of MnO2, FeS2, CuO, .alpha.-Cu2V2O7, and LixMnOy, are simultaneously rolled and then fed into the gap of a roller mechanism, on opposite sides of an interposed metal net or mesh, to roll coat both sides of the lattice-like carrier strip. After excess mass is stripped off, the finished electrode ribbon has a thickness of less than 0.45 mm and a porosity of more than 24% which, because of its large active surface, is advantageously used in wound batteries incorporating Li or H2 electrodes.

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