Wiederaufladbare Braunsteinbatterie fuer die Elektrotraktion Schlussbericht

The main purpose of the project was the modification of the manganese dioxide by additives for improving the number of discharging/charging cycles. Using bismute oxide a mechanism could be developed in which a layered structure is formed under the action of the bismute additive. The amount of bismute necessary for the development of the layered structure is 12% (atomic ratio). Other additives were found having a same or even better influence than the bismute. Also an optimized preparation procedure for modified manganese dioxide was developed. An increased number of discharging/charging cycles of consumer batteries was achieved. The application for electrotraction seems to be not possible. (orig.)SIGLEAvailable from FIZ Karlsruhe / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman