Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1987-08-10
1991-09-10
Niebling, John F.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
429212, H01M 460
Patent
active
050473026
ABSTRACT:
An aluminum substrate, with its natural oxide film intact, is made suitable for the electrochemical deposition polymerization of the electrode-active organic material, and for further use as an electrolyte holder and a charge eliminator, by providing the aluminum substrate with an electron-conducting coating of Au, Pt, Ni, Cr, Cr-Ni or C. In blank form, following pickling in an alkali, the aluminum substrate can either directly receive the deposit, or can be prepared for this purpose by electrochemical coating with a corrosion-resistant heavy metal.
The aluminum can be used in the form of a netting or expanded metal so as to achieve a particularly firm connection between the metal and the polymer, and so that the resulting mesh cavities can be used to incorporate the amount of electrolyte which is necessary for charging of the polymer electrode. This allows the use of a thinner separator as the electrolyte reservoir, improving the power density of the cell.
REFERENCES:
patent: 4117209 (1978-09-01), Markin et al.
patent: 4440837 (1984-04-01), Shimotake et al.
patent: 4442187 (1984-04-01), MacDiarmid et al.
patent: 4497882 (1985-02-01), Mikkor
patent: 4543306 (1985-09-01), Dubois et al.
patent: 4559284 (1985-12-01), Nishimura et al.
patent: 4568620 (1986-02-01), Wright et al.
Bittihn Rainer
Ely Georg
Woeffler Friedrich
Marquis Steven P.
Niebling John F.
Varta Batterie Aktiengesellschaft
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