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Colloidal electrolyte of storage battery

A technology of colloidal electrolyte and storage battery, applied in the field of electrolyte, can solve the problems of high resistance, low charge-discharge performance at high current, small battery capacity, etc., and achieve the effect of simple preparation process and improvement of charge-discharge performance and capacity at high current.

Inactive Publication Date: 2012-03-28
广西天鹅蓄电池有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a colloidal electrolyte for a storage battery aiming at the problems of relatively large electrolyte resistance, low high-current charging and discharging performance, and small battery capacity of the existing colloidal storage battery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 5 g of carboxymethyl chitosan produced by Qingdao Shengyang Chemical Co., Ltd. with a molecular weight of 0.2 million to 4.995 kg of existing mature nano-gas phase silica colloidal electrolyte, dissolve evenly under constant stirring, and record it as colloidal electrolyte 1# sample .

[0020] In this embodiment, the nano-gas phase silica colloidal electrolyte formula is composed of: nano-gas phase silica 7% by weight, composite additives include pentaerythritol accounting for 1% by weight of the colloidal electrolyte, 0.5% by weight of cobalt sulfate, 3% by weight of sodium sulfate, 4.5% by weight of phosphoric acid and 0.05% by weight of montmorillonite; the balance is a sulfuric acid solution with a concentration of 35% by weight.

Embodiment 2

[0022] Add 0.5 g of carboxymethyl chitosan produced by Weifang Haizhiyuan Biological Products Co., Ltd. with a molecular weight of 29,000 to 4.9995 kg of existing mature nano-gas phase silica colloidal electrolyte, dissolve evenly under constant stirring, and record it as a colloidal electrolyte 2# sample.

[0023] In the present embodiment, the formula of nano fumed silica colloidal electrolyte is composed of: nano fumed silica: 3% by weight; composite additives include pentaerythritol accounting for 3% by weight of the colloidal electrolyte, 5% by weight of sodium sulfate, 6.5% by weight of phosphoric acid and 1% by weight of montmorillonite; the balance is a sulfuric acid solution with a concentration of 45% by weight.

Embodiment 3

[0025] Add 2.5 g of carboxymethyl chitosan produced by Huantai County Jinhu Shell Products Co., Ltd. with a molecular weight of 10,000 to 4.9975 kg of existing mature nano-gas phase silica colloidal electrolyte, dissolve evenly under constant stirring, and record it as a colloid Electrolyte 3# sample.

[0026] In the present embodiment, the formula of nano fumed silica colloidal electrolyte consists of: nano fumed silica: 5.5% by weight; composite additives include pentaerythritol accounting for 2.1% by weight of the colloidal electrolyte, 0.18% by weight of cobalt sulfate, and 3.9% by weight of sodium sulfate , 5.3% by weight of phosphoric acid and 0.6% by weight of montmorillonite; the balance is a sulfuric acid solution with a concentration of 41% by weight.

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Abstract

The invention relates to a colloidal electrolyte of a storage battery, which is realized by the mode that carboxymethyl chitosan with the total weight of 0.1-0.01% is added on the base of a formula of existing commercial nanometer fumed silica colloid electrolyte or silica solution colloid electrolyte. By adding the carboxymethyl chitosan, the responsible speed of sulfuric acid concentration in the colloid electrolytes at the electrode interface layer is improved, the utilization rate of active matters are effectively improved, and the salinization of sulfuric acid of the active matters is restrained. The colloid electrolyte provided by the invention can be widely applied to various colloid storage batteries.

Description

technical field [0001] The invention relates to an electrolyte used in storage batteries, in particular to a colloidal electrolyte. Background technique [0002] The gel battery electrolyte is in a colloidal state, and it is a liquid-filled sealed battery with better performance. However, the colloidal electrolyte significantly increases the internal resistance of the battery, and the migration rate of sulfuric acid in the colloidal electrolyte decreases, which significantly reduces the high-current charge and discharge performance of the colloidal battery and reduces the battery capacity. Contents of the invention [0003] The invention provides a storage battery colloidal electrolyte aiming at the problems of relatively large electrolyte resistance, low high-current charging and discharging performance and small battery capacity in the existing colloid storage battery. [0004] Technical scheme of the present invention is as follows: [0005] A battery colloidal ele...

Claims

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Application Information

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IPC IPC(8): H01M10/10
CPCY02E60/126Y02E60/10
Inventor 石光向力陈红雨徐志宁
Owner 广西天鹅蓄电池有限责任公司
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