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High-power lead-acid battery pole group and manufacturing method thereof

A technology of lead-acid battery and manufacturing method, which is applied in the direction of lead-acid battery, lead-acid battery construction, final product manufacturing, etc. It can solve problems such as lack of maintenance conditions, corrosion of battery lugs, and harsh use environment, and delay softening The effect of shedding process, prolonging battery life and avoiding plate lug corrosion

Active Publication Date: 2019-11-01
WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The use environment of traditional high-power lead-acid batteries is relatively harsh, such as long-term high temperature, bumps, and lack of maintenance conditions, etc., which may lead to early corrosion and perforation of the ears of the battery, resulting in premature termination of battery life

Method used

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  • High-power lead-acid battery pole group and manufacturing method thereof
  • High-power lead-acid battery pole group and manufacturing method thereof
  • High-power lead-acid battery pole group and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 is a basic embodiment of this manufacturing method, comprises the following steps:

[0032] 1) Encapsulation of the positive plate 1: put the lug sheath of the positive plate 1 on the lug of the positive plate 1, use a woven polyester bag with a thickness of 0.10mm, and seal it with a heat-sealing process with a heat-melting temperature of 250°C. The melting time is 10s, the heat sealing time is 10s, and the air pressure is 0.3MPa.

[0033] 2) Lay plate: Place negative plate 2, PE separator 3, packaged positive plate 1, and PE separator 3 in order. The lugs of positive plate 1 and negative plate 2 should be staggered. Ears are in the same direction. Lock after the swing plate is finished. The thickness of the PE separator 3 is 0.20mm, and the resistance is 0.25Ω•cm 2 , The porosity is 50%; the upper bottom of the trapezoidal lug reinforcement part 7 is 2mm, the lower bottom is 5mm, and the height is 10mm.

[0034] 3) Welding: Tighten the welding plate d...

Embodiment 2

[0037] Embodiment 2 is the embodiment further optimized on the basis of embodiment 1, further than embodiment 1 is:

[0038] In step 1), the positive electrode plate 1 is packaged in a non-woven polyester bag with a thickness of 0.30 mm. It is sealed by heat sealing process, the heat melting temperature is 275°C, the heat melting time is 15s, the heat sealing time is 15s, and the air pressure is 0.35MPa.

[0039] Step 2) In the middle of the swing plate, the thickness of the PE separator 3 is 0.60mm, and the resistance is 0.30Ω•cm 2 , The porosity is 60%; the upper bottom of the trapezoidal ear reinforcement 7 is 6mm, the lower bottom is 10mm, and the height is 15mm.

[0040] The solder in step 3) is a lead-antimony alloy with an antimony content of 4%.

[0041] In step 4), the pressure casting process is used to cast the epoxy material, the thickness of the lug outer cladding 8 is 10mm, and the height is 20mm.

Embodiment 3

[0043] Embodiment 3 is a preferred embodiment on the basis of Embodiment 2.

[0044] The packaging of the positive plate 1 in step 1) is sealed by ultrasonic welding. Turn on the power supply and air valve, preset the value of the welding mold barometer to 0.3MPa, and preset the welding time and pressure holding time to 1s.

[0045] Step 2) In the middle of the swing plate, the thickness of the PE separator 3 is 1.0mm, and the resistance is 0.35Ω•cm 2 , The porosity is 65%; the upper bottom of the trapezoidal ear reinforcement 7 is 10mm, the lower bottom is 12mm, and the height is 20mm.

[0046] The welding solder in step 3) is a lead-tin alloy with a tin content of 6%.

[0047] In step 4), the pressure casting process is used to cast the epoxy material, the thickness of the lug outer cladding 8 is 10 mm, and the height is 20 mm.

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Abstract

The invention discloses a high-power lead-acid battery pole group. The high-power lead-acid battery pole group includes a positive electrode group, a negative electrode group, a PE separator, a bus bar, a pole column, a positive electrode plate ear reinforcement portion, a negative electrode plate ear reinforcement portion and an outer plate ear cladding layer. The invention further discloses a manufacturing method thereof. The positive and negative electrode plate ear reinforcement portions are inverted trapezoidal structures; the outer plate ear cladding layer is combined with a plate ear inan injection molding or coating process mode, and the outer plate ear cladding layer can be an epoxy-based material, or can be acid-proof paint, asphalt or the like. The high-power lead-acid batterypole group is advantaged in that welding portions between the positive and negative electrode plate ears and the bus bar are strengthened, the current carrying capacity of the portions is reduced, thetemperature rising during high current charging and discharging of the portions is improved, the plate ear portions connected with the bus bar are simultaneously physically protected, the plate ear portions are separated from the sulfuric acid solution, plate ear corrosion caused by long-term contact of the portions with the sulfuric acid solution under special environmental conditions is avoided, and the service life of the storage battery under special environmental conditions can be greatly extended.

Description

technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a novel high-power lead-acid battery pole group and a manufacturing method thereof. Background technique [0002] High-power lead-acid batteries are generally flooded lead-acid batteries, which have the characteristics of high power, high current and fast charge and discharge, and are widely used as power sources for automobiles and ships. [0003] The use environment of traditional high-power lead-acid batteries is relatively harsh, such as long-term high temperature, bumps, and lack of maintenance conditions, etc., which may lead to early corrosion and perforation of the ears of the battery, making the battery life prematurely terminated. Contents of the invention [0004] One of the purposes of the present invention is to design a new type of high-power lead-acid battery pole group according to the deficiencies of the prior art. Carry current, improve the temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/14
CPCH01M10/14Y02E60/10Y02P70/50
Inventor 彭澎司凤荣郑中华曹建军陈瑞宗
Owner WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST