When preparing true colloidal batteries, gel time and colloidal strength are two very important indicators.
1. Gel time: Ideally, the gel time should be long enough (greater than 20 minutes) so that the electrolyte can be fully mixed and the electrolyte can penetrate into all battery gaps before solidification.
The gel time is related to the particle size and dosage of silica sol. The larger the amount of silica sol, the shorter the gel time; the smaller the particle size at the same dosage, the shorter the gel time. In addition, heating will shorten the gel time. If the temperature is increased by 10°C, the gel speed will be doubled.
2. Colloidal strength: The larger the amount of silica sol, the greater the colloidal strength; the smaller the particle size at the same dosage, the greater the colloidal strength.