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, ...

AI Technical Summary

Problems solved by technology

[0014] At present, the colloidal electrohydraulic used in lead-acid batteries uses organic glue or inorganic glue alone, but the single use of organic glue or inorganic glue will have certain disadvantages: the performance of inorganic glue is poor in the early stage, and the performance of organic glue is unstable in the later stage

Although organic and inorganic adhesives have been mixed mechanically and physically, the performance has not seen much improvement

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