Lead acid storage battery of electric booster car and cream technique

Abstract

This invention relates to automatic aid trolley lead acid storage battery blending process in the blend process method, which is characterized by the following steps: adding special float liquid in blending; adding nanometer silicon dioxide and glue graphite in anode float liquid and adding acetylene black into float liquid, wherein, the float liquid is added with pure water for five minutes before adding fulguration acid.

Description

technical field [0001] The invention relates to a paste mixing process for lead-acid batteries used in electric power-assisted vehicles, which belongs to the production method of lead-acid batteries. Background technique [0002] With the continuous expansion of the production and sales of electric mopeds, the demand for lead-acid batteries for electric mopeds is increasing day by day. People are looking forward to the battery as a power source, the lighter the weight the better and the higher the capacity the better, and the requirements for the weight-to-energy ratio of the battery for electric mopeds are getting higher and higher. Taking the 12v10Ah battery as an example, the lead-acid battery products of this type of electric moped in the current market generally weigh (4.2-4.3) Kg / piece, and the weight specific energy is limited to (27.84-28.56) Wh / Kg. [0003] Many companies improve the utilization rate of active materials in batteries by thinning the battery grid and...

AI Technical Summary

Problems solved by technology

However, after increasing the number of plates assembled in a single cell, the weight ratio of the battery to energy is difficult to increase due to the corresponding increase in the weight ratio of the grid as the conductive skeleton in the battery, and the battery for electric vehicles is designed to be thin. Plate assembly, limited by the lack of mechanical strength after grid thinning, very limited possibilities for further grid thinning

After the grid is thinned, the processing efficiency of the same battery is reduced, and the scrap rate of the plates during the manufacturing process is also high due to the decrease in the strength of the grid

Other companies increase the initial capacity of the battery by increasing the content of sulfuric acid in the paste during the mixing process to achieve a higher weight-to-weight ratio. However, due to the high acid content in the paste, it is easier for the positive active material to Soften and fall off, the negative electrode active material is more likely to be salinized and lose its activity, and the cycle life of the battery is greatly reduced