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Production method for colloid accumulator

A technology for colloidal batteries and manufacturing methods, which is applied in the direction of lead-acid batteries, lead-acid battery construction, and final product manufacturing. The effect of volume increase

Inactive Publication Date: 2009-06-17
江苏优德电源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to improve the battery structure, overcome the difficulty of perfusion colloid, eliminate the percolation effect of AGM on the colloid, change the poor liquid type into the rich liquid type, and solve the problems of low specific energy and high price of foreign colloidal batteries, and provide a kind of Method for making colloidal electrolyte lead-acid batteries from separators with excellent performance and low price suitable for colloidal batteries

Method used

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  • Production method for colloid accumulator
  • Production method for colloid accumulator
  • Production method for colloid accumulator

Examples

Experimental program
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Effect test

Embodiment 1

[0020] In addition to AGM, the present invention selected polyethylene (PE) separators, 10g modified separators, and rubber separators for making colloidal battery tests, and used DARAMIC's polyester-coated phenolic resin separators for comparison. The rubber separator used here is made of natural rubber and SiO 2 and sulfur by vulcanization, or natural rubber and SiO 2 It is made by electron radiation cross-linking, and its surface is corrugated, which is conducive to perfusion of colloid. Its resistivity≤0.003Ω / dm 2 , the porosity is about 60%. The rubber separator has high mechanical strength, can prevent the transfer of antimony between the positive and negative electrodes, prevent dendrite short circuit, and can be used to make long-life batteries 【2】 . The 10g modified separator here is modified by adding diatomaceous earth to polyethylene.

[0021] The specific preparation methods of the 4 test batteries are as follows:

[0022] 1. The grid is Pb-Ca alloy, and the...

Embodiment 2

[0031] Test battery: 2 pcs of 6-DZMJ-10 electric vehicle battery, the external dimension is 152×98×94 (mm), the grid is Pb-Ca alloy, internalized, using AGM separator and rubber separator respectively, other processes are the same Example 1.

[0032] The test performances of the two separator gel batteries are listed in Table 2.

[0033] Table 2, AGM and rubber separator colloidal battery test performance comparison

[0034]

[0035] The test results show that the initial 5A discharge capacity of the gel battery with rubber separator is slightly lower than that of the AGM battery, but the battery capacity can reach the technical standard, and the other performances are better than the AGM battery. Its storage capacity is about 100g more, reaching the level of flooded batteries, which is very beneficial to increase capacity and prolong life. During constant current charging, the battery with rubber separator has low temperature, less water consumption, and slow corrosion o...

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Abstract

The invention discloses a method of manufacturing a novel colloidal storage battery, which adopts a mircrporous hard rubber separator to substitute an absorptive glass mat separator (AGM), thereby overcoming the difficulty of filling colloid in the AGM-colloidal storage battery, and eliminating liquid leakage resulted from colloid-liquid separation caused by colloid leakage of AGM. The colloid storage amount of the obtained rubber separator colloidal battery is increased, colloid deposition is sufficient and uniform without acid and liquid separation, the battery does not leak liquid, and the battery has long circle life without thermal runaway.

Description

technical field [0001] The invention belongs to the field of accumulators, and in particular relates to a method for manufacturing a colloidal electrolyte lead-acid accumulator. Background technique [0002] Lead-acid batteries still occupy a dominant position in various secondary chemical power sources and occupy the largest market share due to the characteristics of easy-to-obtain raw materials, simple manufacture, stable performance, low price and complete varieties. In the 1960s, a valve-regulated sealed battery appeared in the world. It does not leak acid, rarely discharges acid mist during charging, and does not need to add dilute sulfuric acid and pure water during use, so it is maintenance-free. Valve-regulated sealed batteries include two types: adsorption batteries and gel electrolyte batteries. The former uses ultra-fine glass fiber separator (AGM) to absorb dilute sulfuric acid electrolyte in it. The internal resistance of the battery is small, the electrolyte c...

Claims

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Application Information

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IPC IPC(8): H01M10/12H01M2/14H01M2/16H01M2/18
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 钱学楼王增海陆长江
Owner 江苏优德电源科技有限公司
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