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Structure and production method of enhanced bipolar plate and enhanced-type zinc-nickel battery

A zinc-bromine battery, enhanced technology, applied in fuel cell components, fuel cell-type half-cells and secondary battery-type half-cells, electrolyte holding devices, etc. Zinc-bromine batteries have problems such as service life and prone to swelling and deformation, so as to achieve the effect of improving service life, poor pressing effect and improving service life.

Active Publication Date: 2015-06-24
江苏恒安储能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after a long period of operation in the electrolyte, the diaphragm and the bipolar plate are prone to swelling and deformation. Since there is no steel support in the middle part of the electrode, the swelling deformation is transmitted to both ends of the zinc-bromine battery, resulting in swelling of the bipolar plates at both ends. The deformation is the most serious, which affects the performance of the zinc-bromine battery and reduces the service life of the zinc-bromine battery

Method used

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  • Structure and production method of enhanced bipolar plate and enhanced-type zinc-nickel battery
  • Structure and production method of enhanced bipolar plate and enhanced-type zinc-nickel battery
  • Structure and production method of enhanced bipolar plate and enhanced-type zinc-nickel battery

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Experimental program
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Embodiment 1

[0029] Embodiment 1 of the present invention: a reinforced zinc-bromine battery, the three-dimensional structure of the main body of the battery is as follows figure 2 As shown, an insulating frame body 1b is welded on the periphery of the electrode part 1a of the rectangular flat bipolar electrode frame 1, and the rectangular flat diaphragm plate 2 is welded by the diaphragm part 2a and the insulating frame body 2b. 1 and the diaphragm plate 2 are placed between the grid 5 to form a single cell. When the reinforced zinc-bromine battery includes 30 single cells, 4 single cells are used as a unit, and the reinforced bipolar plate 9 is placed on each unit cell. On both sides, a plurality of such unit cells with reinforced bipolar plates 9 are stacked to form a battery body. At both ends of the battery body, there is a terminal electrode lower frame 7 with a collector grid and a collector terminal 6, and a fastening end plate 8 is arranged behind the terminal electrode lower fra...

Embodiment 2

[0032] Embodiment 2: a kind of strengthened zinc-bromine battery, the three-dimensional structure of its battery main body is as follows figure 2 As shown, an insulating frame body 1b is welded on the periphery of the electrode part 1a of the rectangular flat bipolar electrode frame 1, and the rectangular flat diaphragm plate 2 is welded by the diaphragm part 2a and the insulating frame body 2b. 1 and the diaphragm plate 2 are placed between the grid 5 to form a single cell. When the zinc-bromine battery includes 30 single cells, 4 single cells are used as a unit, and the reinforced bipolar plate 9 is placed on the two sides of each unit cell. On the side, a plurality of such unit cells with reinforced bipolar plates 9 are stacked to form a battery body. At both ends of the battery body, there is a terminal electrode lower frame 7 with a collector grid and a collector terminal 6, and a fastening end plate 8 is arranged behind the terminal electrode lower frame 7 at both ends,...

Embodiment 3

[0035] Embodiment 3: a kind of strengthened type zinc-bromine battery, the three-dimensional structure of its battery main body is as follows figure 2 As shown, an insulating frame body 1b is welded on the periphery of the electrode part 1a of the rectangular flat bipolar electrode frame 1, and the rectangular flat diaphragm plate 2 is welded by the diaphragm part 2a and the insulating frame body 2b. 1 and the diaphragm plate 2 are placed between the grid 5 to form a single cell. When the zinc-bromine battery includes 30 single cells, 4 single cells are used as a unit, and the reinforced bipolar plate 9 is placed on the two sides of each unit cell. On the side, a plurality of such unit cells with reinforced bipolar plates 9 are stacked to form a battery body. At both ends of the battery body, there is a terminal electrode lower frame 7 with a collector grid and a collector terminal 6, and a fastening end plate 8 is arranged behind the terminal electrode lower frame 7 at both ...

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Abstract

The invention discloses a structure and a production method of an enhanced bipolar plate and an enhanced-type zinc-nickel battery. The enhanced bipolar plate comprises two to six conductive plastics and a supporting net, wherein the conductive plastics are arranged in a lamination way, the supporting net is arranged among the laminated conductive plastics, the supporting net is fixedly connected with the conductive plastics, and the conductive plastics are fixedly connected with one another. The enhanced-type zinc-nickel battery comprises single batteries which are arranged in a lamination way and the enhanced bipolar plate, wherein one to six single batteries form one unit, and two ends of each unit are respectively provided with the enhanced bipolar plate. The zinc-nickel battery is divided into a plurality of units, and two ends of each unit are respectively provided with the enhanced bipolar plate consisting of two to six conductive plastics and one supporting net, so that the strength of the battery can be enhanced, the swelling deformation effect of the bipolar plate and a diaphragm of the zinc-nickel battery during the application process can be reduced, the influence of the swelling deformation on the performance of the zinc-nickel battery can be reduced, and the service life of the zinc-nickel battery can be further improved.

Description

technical field [0001] The invention relates to a structure and a manufacturing method of a reinforced bipolar plate and a reinforced zinc-bromine battery, belonging to the technical field of zinc-bromine batteries. Background technique [0002] Zinc-bromine battery is a rechargeable battery that uses bromine as the positive electrode active material and zinc as the negative electrode active material. This battery is developed to solve the problem of power balance between day and night. Its function is to store power at night when the power demand is small. , to release electricity during the day. Zinc-bromine batteries are stacked by multiple single cells, and are equipped with framed terminal electrodes at both ends of the stacked body in the stacking direction, and the terminal electrodes at both ends are respectively equipped with fastening end plates. A single cell is composed of two bipolar plates and a diaphragm sandwiched between the bipolar plates, and an isolation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/02H01M12/08H01M8/0289
CPCY02E60/50Y02E60/10
Inventor 孟琳刘学军周立恒陆克
Owner 江苏恒安储能科技有限公司