A chemically cross-linked lead-acid battery mixed colloidal electrolyte

Abstract

The invention discloses a chemically-crosslinked mixed gelled electrolyte of a lead-acid storage battery. The chemically-crosslinked mixed gelled electrolyte is prepared from an original adhesive and sulfuric acid in a matching manner; the original adhesive is a chemically-crosslinked mixed adhesive, and specifically comprises an inorganic adhesive, an organic adhesive and a crosslinking agent; the crosslinking agent is butanedioic acid and adipic acid, wherein the organic adhesive accounts for 25-30% of the total weight of the adhesive; the inorganic adhesive accounts for 50-60% of the total weight of the adhesive; the butanedioic acid accounts for 4-8% of the total weight of the adhesive; and the adipic acid accounts for 8-16% of the total weight of the adhesive. The organic and inorganic mixed adhesive prepared by the chemical crosslinking method is taken as the electrolyte of the lead-acid storage battery; the chemically-crosslinked organic and inorganic mixed adhesive has the characteristic (relatively good post-period performance) of the inorganic adhesive as well as the characteristic (relatively stable front-period performance) of the organic adhesive, and is safe and reliable, not hydrolyzed within the life cycle and not degraded; and in addition, the electrolyte has low production cost, easy realization of industrialization, wide battery temperature applicable range, high rapid and high-current discharging performance and high capacity, and deep cycle life and discharging service life are both prolonged.

Description

technical field

[0001] The invention relates to the technical field of lead-acid batteries, in particular to colloidal electrolytes for lead-acid batteries. Background technique

[0002] colloid is a H 2 SO 4 A kind of electro-hydraulic fixed in colloidal materials that does not flow is beneficial to energy storage batteries used in deep-cycle power batteries and high-temperature environments. Colloidal electrolytes include inorganic glue and organic glue.

[0003] Inorganic glue: generally refers to silicic acid colloid, SiO 2 It is silicic anhydride, which is acidic and can be written as H 4 SiO 4 , which is alkaline and can be written as Si(OH) 4 .

[0004] Monomolecular silicic acid is uncharged, neutral molecule, small surface area and unstable. It is prone to polymerization at room temperature to form polysilicic acid. Generally, there are 4-12 monomers. In order to make SiO 2 The particles are stable and not polymerized. Stabilizers (such as polyamide, pectin, ...

Images