Study on the Influence of Nano-Silica as Electrolyte on the Performance of Lead Storage Batteries
Nano silica is dispersed in the electrolyte of lead-acid batteries to form silica sol electrolytes, and through the performance test of pure lead in electrolytes. It is found that the addition of this electrolyte can significantly improve the battery performance of lead-acid batteries. In this paper, electrochemical test methods such as CV, LSV, EIS and OCPT are used to simulate the performance of the positive plate of lead-acid battery in electrolyte, and verify the capac-itance improvement of silica additives on lead-acid batteries and increase the oxygen evolution overpotential under the float charging position. FESEM, XRD and XPS characterization methods were used to prove that the optimal content of silica as an additive was 0.3％, and the addition of silica could improve the particle uniformity of the corrosion layer, refine the grains of the corrosion layer, and inhibit the corrosion effect of electrolyte on the plate materials in lead-acid batteries.
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