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Lead silicon energy-focusing battery

A technology of accumulating battery and positive electrode, applied in the field of new lead-silicon concentrating battery, can solve problems such as bias current, battery failure, uneven electrolyte, etc., and achieve the effects of improving stability and service life, prolonging service life, and improving specific energy.

Active Publication Date: 2008-10-29
SHANDONG CHAOWEI POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the colloid is added to the ordinary AGM valve-regulated sealed lead-acid battery, it often cannot penetrate the inside of the battery, and the electrolyte is not uniform, resulting in local bias current and premature failure of the battery.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The lead-silicon concentrating battery includes several electrode groups, electrolyte and conductive network. Several electrode groups are connected in series. Each electrode group is composed of several parallel positive electrodes, several parallel negative electrodes and separators. The separators are arranged in Between the positive electrode and the negative electrode, the electrolyte is a mixture of sulfuric acid, water, stabilizers, and additives, and a silicon material that has undergone hydroxylation treatment. The mixture is then mechanically stirred and ultrasonically stirred, and then a mixture of about 500 mesh is used. Emulsion filtered by a plastic screen.

[0017] Electrode preparation: the support material and conductive network of the positive and negative reaction materials of the battery adopt a network structure composed of electrodeposited lead on the plastic surface; the positive reaction material adopts a mixture of lead, lead monoxide, lead dioxide,...

Embodiment 2

[0026] Electrode preparation: the support material and conductive network of the positive and negative reaction materials of the battery adopt a network structure composed of electrodeposited lead on the plastic surface; the positive reaction material adopts a mixture of lead, lead monoxide, lead dioxide, additives, water, and sulfuric acid ; The negative electrode reaction material adopts a mixture of lead, lead monoxide, lead dioxide, additives, water, and sulfuric acid, and is made into a flat electrode by a coating method.

[0027] Preparation of liquid electrolyte material: Mix 8g of fumed silica with a specific surface area of ​​200g / m2 and a particle size of 100-200nm after hydroxylation treatment with 1 liter of sulfuric acid, water, and a mixture of polyvinyl alcohol and sodium hydroxide. After mechanical stirring, ultrasonic stirring, and filtering with a 500-mesh plastic screen, a stable and fluid emulsion is formed.

[0028] The production of the pole group: the above ...

Embodiment 3

[0035] Electrode preparation: the support material and conductive network of the positive and negative reaction materials of the battery adopt a network structure composed of electrodeposited lead on the plastic surface; the positive reaction material adopts a mixture of lead, lead monoxide, lead dioxide, additives, water, and sulfuric acid ; The negative electrode reaction material adopts a mixture of lead, lead monoxide, lead dioxide, additives, water, and sulfuric acid, and is made into a flat electrode by a coating method.

[0036] Preparation of liquid electrolyte material: 8g of fumed silica with a specific surface area of ​​200g / m2 and a particle size of 100-200nm after hydroxylation, and 1 liter of sulfuric acid, water, methylated cellulose, phosphoric acid, and potassium hydroxide The mixed liquid is mixed, mechanically stirred, then ultrasonically stirred, and filtered with a 500-mesh plastic screen to form a stable, fluid emulsion.

[0037] The production of the pole gr...

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Abstract

The invention discloses a lead-silicon cavity energy cell which comprises a plurality of plate groups, an electrolyte and a conductive network. The plate groups are connected in series and each plate group consists of a plurality of positive electrodes connected in parallel, a plurality of negative electrodes connected in parallel and a separator which is arranged between the positive electrodes and the negative electrodes. A mixture of sulfate, water, a stabilizer and an additive, and a silicon material after hydroxylation treatment are mixed according to a certain ratio, carried out mechanically stirring and supersonic wave stirring and then filtered by a plastic screen of about 500 meshes to obtain an emulsion which is the electrolyte. The lead-silicon cavity energy cell adopts the principle of electrical thixotropic coagulation, causes the electrolyte to be in a liquid state with excellent fluid during the process of perfusion and condense effectively during the process of charging, thus forming the condensed state electrolyte all around in the cell, and the condensed state electrolyte material effectively improves the application stability and service life of the cell. The resistance of the electrolyte is not more than that of a normal lead-acid cell and crack and hydration do not exist, thereby effectively prolonging the service life of the cell.

Description

【Technical Field】 [0001] The invention relates to the field of storage batteries, in particular to a new type of lead-silicon concentrating battery. 【Background technique】 [0002] The application of batteries as a vehicle power source has become more and more widespread. The current batteries mainly include lead-acid batteries, nickel-cadmium batteries and nickel-hydrogen batteries. [0003] Nickel-cadmium battery is an alkaline battery with a specific energy of 55W.h / kg and a specific power of more than 190W / kg. It can be quickly charged and has a longer cycle life. It is more than twice that of lead-acid batteries and can reach 2000 Many times, but the cost of nickel-cadmium batteries is high, 4-5 times that of lead-acid batteries, and the heavy metal cadmium among them has serious environmental pollution. Therefore, the application of nickel-cadmium batteries in vehicles has been greatly restricted. [0004] Like nickel-cadmium batteries, nickel-metal hydride batteries are al...

Claims

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Application Information

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IPC IPC(8): H01M10/06H01M10/08H01M10/12
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 周明明孙延先刘孝伟赵文超周龙瑞
Owner SHANDONG CHAOWEI POWER
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