Layered silicate-containing colloidal electrolyte for storage batteries and preparation method thereof

A colloidal electrolyte and layered silicate technology, applied in the field of electrolytes, can solve problems such as low glue filling efficiency, poor battery performance, and difficult glue filling, and achieve the effects of increasing glue filling speed, improving fluency, and improving wettability
CN102044710BInactive Publication Date: 2013-05-01SOUTH CHINA NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA NORMAL UNIVERSITY
Publication Date
2013-05-01
Estimated Expiration
Not applicable · inactive patent
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Abstract

The invention relates to a layered silicate-containing colloidal electrolyte for storage batteries, which mainly comprises a silicon-containing gel, a thixotropic agent, a complex additive and electrolyte, wherein the thixotropic agent is layered silicate with the width / thickness ratio of 100-2,000. The colloidal electrolyte comprises the following components in percentage by weight: 2.0 to 10.0 percent of gelatinizing agent, 0.05 to 0.5 percent of thixotropic agent, 5.0 to 13.0 percent of complex additive and the balance of dilute solution of sulfuric acid. The colloidal electrolyte has goodthixotropic liquidity and gel stability and low colloid kinetic viscosity; and the filling efficiency of the colloidal electrolyte and the infiltration of the colloidal electrolyte on the baffle plate and polar plates are greatly improved. The electrolyte can be used for assembling storage batteries with different purposes, such as starting batteries, stationary batteries, traction batteries and the like.
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Description

technical field

[0001] The invention relates to an electrolyte used in storage batteries, in particular to a colloidal electrolyte. Background technique

[0002] Gel battery uses colloid as electrolyte, which is a special kind of battery. Gel battery mainly adopts valve-controlled sealing technology, which is a kind of sealed battery. The colloidal electrolyte in a gel state does not flow in the battery, so it is not easy to leak acid. The colloidal electrolyte in the battery is conducive to maintaining sufficient pressure on the anode grid by the separator, which can effectively inhibit the shedding of the anode active material and the growth and penetration of lead dendrites, and prolong the battery life. During the charging and discharging process of the battery, the structure of the colloidal electrolyte will change due to the change of the acid concentration of the electrolyte. During the discharge process, due to the decrease of the acid concentration of the electrol...

Claims

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