Preparation and application of gel electrolyte for anti-freezing zinc-based battery

The invention relates to a gel electrolyte suitable for a -20 DEG C zinc-based battery as well as preparation and application of the gel electrolyte. The invention discloses a preparation method of an anti-freezing gel electrolyte for a zinc-based battery, which aims to reduce the freezing temperature of the gel electrolyte taking sodium alginate-polyacrylamide as a matrix through the synergistic hydration effect of zinc salt and lithium salt. The anti-freezing hydrogel immersed in zinc salt and lithium salt is used as an electrolyte, shows good freezing resistance and mechanical properties, and has excellent low-temperature tolerance and cycle stability. The problems that the conventional electrolyte cannot work normally due to limited use below zero DEG C, the preparation process is tedious and the ionic conductivity is low are overcome. 一种适用于-20℃的锌基电池的凝胶电解质及其制备和应用。本发明公开了一种用于锌基电池的抗冻凝胶电解质的制备方法，本发明目的是通过锌盐和锂盐的协同水化作用，降低海藻酸钠-聚丙烯酰胺为基体的凝胶电解质的冻结温度。浸入锌盐和锂盐的抗冻水凝胶作为电解质，显示出良好的抗冻性和机械性能，具有优异的低温耐受性和循环稳定性。本发明在于克服现有电解质在零度以下