Colloidal electrolyte of lead acid batteries

Abstract

The invention discloses a lead-acid accumulator colloid electrolyte. The lead-acid accumulator colloid electrolyte comprises the following compositions in percentage by mass: 30 to 45 percent of sulphuric acid, 4 to 12 percent of nanometer silicon dioxide, 0.05 to 0.5 percent of macromolecular stabilizing agent, 0.1 to 0.5 percent of superfine glass fibre, 0.1 to 0.5 percent of boric acid, 0.1 to 1 percent of phosphoric acid, 0.3 to 2.5 percent of sodium sulfate and 50 to 57 percent of water. The electrolyte is added with the macromolecular stabilizing agent and the hydrophilic superfine glass fibre and sets up a strong network structure with the sulphuric acid and water molecules; the macromolecular stabilizing agent effectively prevents the delamination of various compositions and the hydration of the colloid electrolyte; the superfine glass fibre in the colloid electrolyte forms a reinforcing rib of the colloid electrolyte, effectively prevents the colloid electrolyte from seriously crazing, strengthens the tensile strength and vibration resistance performance of the colloid and has the strong liquid absorption capacity which improves the diffusing and transmitting speed of the electrolyte. The lead-acid accumulator colloid electrolyte improves the charging and receiving capacity, thereby increasing the cycle life of an accumulator.

Description

【Technical field】 [0001] The invention relates to a lead-acid storage battery, in particular to a colloidal electrolyte used in the lead-acid storage battery. 【Background technique】 [0002] Traditional lead-acid batteries are mainly composed of battery tanks, battery covers, plates, dilute sulfuric acid electrolytes, separators and accessories. The manufacturing process of lead-acid batteries includes lead powder manufacturing, grid casting, plate manufacturing, plate formation and battery assembly. Among them, lead powder manufacturing is to process 1# electrolytic lead into lead powder that meets the requirements of battery production technology. The main components of lead powder are lead oxide and metallic lead. The quality of lead powder has a very close relationship with the quality of the manufactured product. In my country, the Shimadzu method is often used to produce lead powder, while in Europe and America, the Barton method is often used to produce lead powder....

AI Technical Summary

Problems solved by technology

At present, companies such as Europe and Japan are all researching and perfecting the fumed silica method, but the content of silicon dioxide in the current fumed silica method is unreasonable, which easily causes floating powder and lead ions (Pb 4+ ) diffusion, leading to the occurrence of short circuit phenomenon

The delamination of various components is serious, the tensile strength of the colloidal electrolyte is poor, it is easy to cause the cracking of the colloidal electrolyte, affect the charging acceptance ability, and the cycle life of the battery is short