Research on innovative lead-acid batteries with immobilised electrolyte for traction and stationary applications
A number of research projects were undertaken in this area, which included the influence of antimony on the thermodynamic properties and the kinetic behaviour of the lead dioxide electrode, and measurements on the discharging/charging behaviour of compact lead dioxide layers in H(2)SO(4). The antimony-free effect was investigated under eloflux conditions. The charging method has a very clear influence on the capacity level: the lower the mass resistance, the larger is the capacity. The effects of immobilising the electrolyte on discharges of lead-acid batteries were investigated and a program developed to predict the influence of acid concentration, plate thickness, porosity of separation and electrodes and of the temperature. Experiments were carried out on immobilised electrolyte and the parameters for gel strength and pot life investigated with viscosity measurements. It was not possible to find a suitable additive that lengthened the pot life clearly without impairing the final strength of the gel. Within the context of cell construction, the problem of leak-proofing and a special I/U charging method were investigated; also load diagrams were recorded for different test cells to establish longevity.
Bibliographic Reference: EUR 12279 DE (1989) MF, 189 pp., ECU 8, blow-up copy ECU 23.75
Record Number: 198911115 / Last updated on: 1994-12-01
Original language: de
Available languages: de