Process for the production of a positive electrode in ribbon for

Details Process for the production of a positive electrode in ribbon for Process for the production of a positive electrode in ribbon for

1991-05-06

1992-10-27

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264104, 264105, 264113, 429217, B29C 4328

Patent

active

051587220

ABSTRACT:
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 MnO.sub.2, FeS.sub.2, CuO, .alpha.-Cu.sub.2 V.sub.2 O.sub.7, and Li.sub.x MnO.sub.y, 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 H.sub.2 electrodes.

REFERENCES:
patent: 2678343 (1954-05-01), Daniel
patent: 4216045 (1980-08-01), Morioka
patent: 4710335 (1987-12-01), Kita et al.
patent: 4790969 (1988-12-01), Bailey
patent: 4902589 (1990-02-01), Dahn

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