Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1994-07-29
1996-05-07
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
204290R, 204294, 427122, 427427, 4274432, H01M 462
Patent
active
055144950
ABSTRACT:
A carbon-black-containing gas-consuming layer on the surface of a negative electrode is produced from a mixture of an aqueous carbon black dispersion and an aqueous PTFE dispersion, both of which contain a surfactant of the same type (either cationic, anionic or nonionic) for the purpose of stabilization. The stabilized particles in the final gas-consuming dispersion are formed by coating PTFE particles with smaller carbon particles, preferably with an interlayer or envelope of a surfactant film. Pores and cracks operate to increase the effective catalytic surface area for oxygen gas. Additions of polyacrylic acid esters are suitable for adjusting the viscosity of the dispersion. The dispersion is applied to the electrode by immersion or spraying.
REFERENCES:
patent: 4255466 (1981-03-01), Natsume et al.
patent: 4278825 (1981-07-01), Gestaut
patent: 4330387 (1982-05-01), Astruc et al.
patent: 4382875 (1983-05-01), Solomon
patent: 4900642 (1990-02-01), Tomantschger
patent: 5043234 (1991-08-01), Tomantschger
Kalafut Stephen
Varta Batterie Aktiengesellschaft
LandOfFree
Negative electrode for gastight alkaline storage batteries havin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Negative electrode for gastight alkaline storage batteries havin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Negative electrode for gastight alkaline storage batteries havin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1226027