A sealing device, a bipolar battery and a single battery

A sealing device and sealing end cap technology, applied in sealing materials, lead-acid batteries, battery pack components, etc., can solve the problems of battery discharge voltage reduction, battery discharge performance reduction, battery temperature rise, etc. The effect of improving discharge performance and service life, and suppressing temperature rise

Active Publication Date: 2020-06-23
朱学军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 As shown, when multiple monomers are connected in series, a partition wall is first formed between the monomers, and then the pole plates of a certain polarity in one of the monomers are connected in parallel to form a pole group, which is opposite to that of the adjacent monomer. Polar pole groups are connected together by through-wall welding or cross-bridge welding. The production cost is high, the connection path between each monomer is long, and the resistance is large. Therefore, a large amount of Joule heat will be generated when the battery is discharged, causing the battery temperature to rise, resulting in The discharge voltage of the battery is reduced, which greatly reduces the discharge performance of the battery

Method used

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  • A sealing device, a bipolar battery and a single battery
  • A sealing device, a bipolar battery and a single battery
  • A sealing device, a bipolar battery and a single battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 2 with image 3 As shown, a sealing device for a battery plate, the sealing device 1 includes: a tank body 10, a sealing upper cover 11 covering the tank body, and a soft adsorption strip 12, wherein,

[0043] Described groove body 10 comprises two oppositely arranged groove walls, and the two ends of each described groove wall are all provided with a groove wall positioning groove 14, and the groove of described groove wall positioning groove 14 of the same end of two described groove walls The mouths are opposite, and the end face of the groove wall positioning groove 14 is flush with the notch of the groove body 10 .

[0044]The soft adsorption strip 12 is adsorbed with a liquid adhesive and solidified, and the two ends of the soft adsorption strip 12 are embedded in a pair of groove wall positioning grooves 14 opposite to the notch, and multiple layers are embedded in the grooves. The soft adsorption strip 12 in the wall positioning groove 14 and t...

Embodiment 2

[0050] Such as Figure 5 with Image 6 As shown, a bipolar battery includes: the sealing device 1, the positive plate 2, the bipolar plate 3, the negative plate 4 and the separator 5 in multiple embodiments 1, wherein,

[0051] The sealing device 1 includes positive sealing devices and at least one bipolar sealing device connected in series in sequence, and the sealing end caps between adjacent sealing devices 1 are the same sealing end cap, and each of the sealing devices 1 The sealed space is filled with electrolyte;

[0052] The sealing device matched with the positive electrode plate 2 is the positive sealing device, a plurality of the positive electrode plates 2 are parallel to the bottom of the groove and stacked in the groove body of the positive sealing device 1, each of the One end of the positive plate 2 is a positive plate extension 21, and the other end of the positive plate 2 is a positive plate built-in end 22. Each of the positive plate extensions 21 is connec...

Embodiment 3

[0071] Such as Figure 7 with Figure 8 As shown, a single battery, the single battery includes: the sealing device 1 described in embodiment 1, the positive plate 2, the negative plate 4 and the separator 5, wherein,

[0072] One end of each positive plate 2 is a positive plate extension 21, the other end of the positive plate 2 is a positive plate built-in end 22, and one end of each negative plate 4 is a negative plate extension 41. The other end of the plate 4 is the built-in end 42 of the negative plate;

[0073] A plurality of positive plates 2 are parallel to the bottom of the tank and stacked in the tank body of the sealing device 1, and each of the positive plate extensions 21 is absorbed from the adjacent soft material of the sealing end cap on the same side. The gap between the strips 12 protrudes; one negative plate 4 is arranged parallel to the bottom of the groove between two adjacent positive plates 2, and each negative plate extension 41 is drawn from the oth...

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Abstract

The invention discloses a sealing device, a bipolar battery and a single battery. The sealing device includes: a tank body, a soft adsorption strip and a sealing upper cover arranged above the tank body. The tank body includes two oppositely arranged tank walls, each Both ends of each groove wall are provided with a groove wall positioning groove; the liquid adhesive is adsorbed and solidified in the soft adsorption strip, and the two ends of the soft adsorption strip are embedded in a pair of groove wall positioning grooves opposite to the notch. The soft adsorption strip embedded in the positioning groove of the groove wall and the sealing end cover of the port of the groove body are formed by stacking the soft adsorption strip embedded in the positioning groove of the groove wall, and the soft adsorption strip and the positioning groove of the groove wall, between adjacent soft adsorption strips, and the uppermost layer The soft adsorption strips of the top layer and the sealing upper cover, and the soft adsorption strips of the lowermost layer are all interference fit with the bottom of the tank; the tank body, the sealing end cover and the sealing upper cover form a sealed space. The sealing device can greatly shorten the connection path of adjacent cells, thereby reducing the internal resistance of the battery, suppressing the temperature rise of the battery, and further improving the discharge performance and service life of the battery.

Description

technical field [0001] The invention relates to the field of design and manufacture of lead-acid storage batteries, a sealing device, a bipolar battery and a single battery. Background technique [0002] Lead-acid batteries are generally composed of multiple single cells, and each single cell is separated by a plastic partition for injection molding. Each single battery is composed of positive and negative polar plates. Such as figure 1 As shown, when multiple monomers are connected in series, a partition wall is first formed between the monomers, and then the pole plates of a certain polarity in one of the monomers are connected in parallel to form a pole group, which is opposite to that of the adjacent monomer. Polar pole groups are connected together by through-wall welding or cross-bridge welding. The production cost is high, the connection path between each monomer is long, and the resistance is large. Therefore, a large amount of Joule heat will be generated when the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/08H01M10/12H01M50/184H01M50/186
CPCH01M10/12H01M50/183Y02E60/10Y02P70/50
Inventor 朱学军
Owner 朱学军
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