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Composite-material bipolar storage battery and preparation technology of bipolar plate substrate thereof

A composite material and preparation technology, which is applied in the direction of lead-acid battery electrodes, battery electrodes, lead-acid batteries, etc., can solve the problem of plate damage, active substance PbO2, shortening the service life of lead-acid batteries, and large potential differences between lead-acid batteries. problem, to achieve long service life, high toughness and strength, and reduce the effect of internal resistance

Inactive Publication Date: 2014-04-02
CHANGZHOU YOUTEKE NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional lead-acid batteries have the following disadvantages: 1. Traditional lead-acid batteries often have acid overflow, acid seepage and gas acid mist escape during use, which not only corrodes equipment, but also pollutes the air, which is extremely harmful to the urban environment; 2. The liquid electrolyte in traditional lead-acid batteries is easy to corrode and wash away the plates, resulting in early damage to the plates and the shedding of the active material PbO2 in the plate layer, causing internal short circuits in the batteries and greatly shortening the service life of lead-acid batteries; 3. Traditional lead-acid batteries It is difficult to maintain the battery, and it needs to add acid frequently, adjust the specific gravity, etc., which increases the cost of use; 4. The potential difference between the upper and lower potentials of traditional lead-acid batteries is large, and it is easy to self-discharge; 5. Poor adaptability in harsh atmospheric environments (alpine and high temperature areas), Difficulty starting the vehicle in cold temperatures

Method used

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  • Composite-material bipolar storage battery and preparation technology of bipolar plate substrate thereof
  • Composite-material bipolar storage battery and preparation technology of bipolar plate substrate thereof
  • Composite-material bipolar storage battery and preparation technology of bipolar plate substrate thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] like figure 1 Shown: the preparation method of composite bipolar battery matrix, its steps are:

[0027] Thermoplastic or thermosetting high molecular polymers and conductive materials are placed in an oven and dried for 0.5 or 1.0 or 1.5 or 2.0 or 2.5 or 3.0 hours at a temperature of 80 or 100 or 110 or 120 or 130 or 140 or 150°C , the thermosetting or thermoplastic polymer is one or more combinations of polyethylene, polypropylene, polybutadiene, polystyrene, polycarbonate, ABS powder and profiles, and the conductive material is metallic lead , metal alloy, acetylene black, carbon black, graphite, carbon nanotubes, polyaniline, titanium oxide, one or more combinations, the particle size range of the conductive material is nanometer or nanometer to micrometer.

[0028] Use 30-100g of the above mixed materials, of which thermoplastic or thermosetting polymers account for 60%-99.9%, conductive materials account for 0.1%-40%, preheat at 100-180°C, pre-press at 0.1-10.0MP...

Embodiment 2

[0037] like figure 2 , image 3 Shown: The preparation process of sputtering metal lead on the surface of composite bipolar battery substrate:

[0038] The hot-pressed substrate 1 is processed by vacuum magnetron sputtering technology, that is, a balance coil is arranged in the middle of the metal target, which is connected to a power supply, and the magnetic field generated by the coil and the external magnetic field jointly affect the vacuum magnetron sputtering system of the metal. The metal lead sputtering of the substrate 1 is completed to obtain the electrode plate substrate required by the composite.

[0039] The substrate 1 is as described in Example 1, and the details are as above.

[0040] Vacuum magnetron sputtering technology, working pressure 10-6Pa, sputtering chamber temperature 50°C, argon gas flow rate 50, working voltage 100V, working current 1.8A, magnetic field 350Gs, working frequency 30KHz, precipitation rate 0.3um / min, circulating cooling The water t...

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Abstract

The invention discloses a composite-material bipolar storage battery and a preparation technology of a bipolar plate substrate thereof. The bipolar storage battery comprises the substrate, a metal sputtering layer and a composite-material bipolar cell. The substrate comprises thermosetting or thermoplastic polymer, and one or more conductive material distributed evenly in the substrate. The conductive material in the substrate is at least one or more composition. The particle size of the conductive material is at the nanometer level or ranges from the nanometer level to the micron level. The metal sputtering layer is processed by utilization of a metal vacuum magnetron sputtering technology. The substrate the sputtered metal of which is lead or a lead alloy is pasted, dried, cured and assembled to obtain the composite-material bipolar cell. The composite-material bipolar plate prepared by the technology has advantages of good corrosion resistance, firm bonding of the sputtering layer of the polar plate substrate, low contact resistance, light weight, low cost, and the like, and meets requirements of large-scale production.

Description

technical field [0001] The invention relates to a battery, in particular to a composite material bipolar storage battery and a preparation process for a bipolar plate matrix thereof. Background technique [0002] Batteries are divided into primary batteries and secondary batteries, wherein secondary batteries refer to batteries that can be repeatedly charged and discharged. The earliest and most widely used secondary battery is the lead-acid battery, which can be manufactured using unipolar or bipolar, or a quasi-bipolar battery that is used alternately between unipolar and bipolar. [0003] Traditional lead-acid batteries have the following disadvantages: 1. Traditional lead-acid batteries often have acid overflow, acid seepage and gas acid mist escape during use, which not only corrodes equipment, but also pollutes the air, which is extremely harmful to the urban environment; 2. The liquid electrolyte in traditional lead-acid batteries is easy to corrode and wash away the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/68H01M4/16H01M10/12
CPCY02E60/126H01M4/16H01M4/668H01M4/68H01M10/12Y02E60/10Y02P70/50
Inventor 宋永江曹从伟孙宁罗云峰宋钱江蒋敏
Owner CHANGZHOU YOUTEKE NEW ENERGY TECH
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