Method and device for testing gelation time of electrolyte colloid

Abstract

The invention discloses a method for testing the gelation time of electrolyte colloid, which comprises the following steps of: providing a gelation time test object with large specific gravity; leading the test object to obtain initial velocity; causing the test object obtaining the initial velocity to fall into a tested liquid electrolyte, wherein the test object in the liquid electrolyte receives the combined action of gravity, buoyancy and electrolyte resistance; promoting the resistance (F) to the test object in the solidification process, wherein the time for the test object to deceleratefrom the initial velocity to zero under the action of the electrolyte resistance is the gelation time of the liquid electrolyte. The invention adopts the test object with large specific gravity, thusnot only overcoming the influence of buoyancy factors, but also providing larger impulse force for the test object, and obviously showing resistance change in the gelation process of the electrolyte,and further determining the gelation time according to the change of the motion state of the test object, providing reference for the infusion time of colloidal batteries, solving the problem of half-way gelation during infusion of the colloidal batteries by controlling the time for infusing the electrolyte, and guaranteeing the quality of the colloidal batteries.

Description

Technical field [0001] The invention relates to a colloidal secondary power supply, in particular to a method and device for testing the gel time of an electrolyte colloid injected into a colloidal secondary battery. Background technique [0002] Photovoltaic power has been widely promoted and applied because of its energy-saving and environmentally-friendly features. The indispensable device supporting photovoltaic power source is the colloidal secondary battery. Compared with the traditional lead storage battery, the gel battery improves the electrolyte formulation and mixes the gelling agent such as silica into the electrolyte, so that the gel battery has the electrolyte does not flow, does not leak acid, prevents the active material from falling off, and reduces The advantages of free discharge and extended battery life have overcome various shortcomings in the use of photovoltaic power sources and become the preferred secondary power source for photovoltaic power sources. ...

AI Technical Summary

Problems solved by technology

However, there is a major problem in the production process of colloidal batteries. After the electrolyte colloid is poured into the battery in a liquid state, there will be gaps in many places inside the battery, and no electrolyte colloid will be filled in, which will cause the active substances there to completely Failure, increased internal resistance, decreased discharge performance, accelerated free discharge, resulting in decreased battery utilization and increased cost. The main reason for this phenomenon is that the electrolyte colloid began to condense during the pouring process.

The key factor is that the gel time cannot be accurately grasped.

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