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A kind of lead-acid battery electrolyte delamination alleviating agent

A lead-acid battery and electrolyte technology, applied in lead-acid batteries and other directions, can solve the problems of reducing battery capacity, starting performance and cycle life, etc., and achieve the effect of easy realization of manufacturing process, obvious effect, and reduction of sulfation.

Active Publication Date: 2018-03-13
CAMEL GRP XIANGYANG BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the electrolyte is stratified, the potential of the upper and lower parts of the plate is different due to the difference in concentration, forming a micro-battery. The discharge of the lower plate produces more lead sulfate, and long-term circulation will reduce the battery capacity, starting performance and cycle life.

Method used

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  • A kind of lead-acid battery electrolyte delamination alleviating agent
  • A kind of lead-acid battery electrolyte delamination alleviating agent
  • A kind of lead-acid battery electrolyte delamination alleviating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Figure 1-5 It is the electrolyte delamination mitigation agent of Example 1, and the distribution of the mitigation agent during battery use and the movement and agitation conditions during use.

[0037] Example 1 uses polyvinyl fluoride hollow material, which is granular and has a diameter of 0.5mm to 1.0mm. There are two types of densities, one is 1.2±0.2g / ml, the other is 1.28±0.2g / ml, and the other is 1.28±0.2g / ml. Raw materials of different densities each account for 50%wt, and their total addition is 10%wt of the total amount of electrolyte. so that it can function in different situations.

[0038] The electrolyte density of the new battery is 1.28g / ml, and the electrolyte is evenly distributed. During the movement of the car, due to the inertia generated when the vehicle starts, stops, accelerates, decelerates, etc., the relieving agent of 1.2±0.2g / ml moves on the top layer of the battery, and the relieving agent of 1.28±0.2g / ml moves in the battery The movem...

Embodiment 2

[0042] Figure 6-10 It is the electrolyte delamination mitigation agent of embodiment 2, and the distribution of the mitigation agent during battery use and the stirring situation during use.

[0043]Example 2 uses PVC hollow material, which is granular and has a diameter of 0.6 mm to 1.1 mm. There are two types of density, one is 1.2 ± 0.2 g / ml, and the other is 1.28 ± 0.2 g / ml. The proportions are 60%wt and 40%wt respectively, and the total amount added is 7%wt of the total amount of electrolyte. so that it can function in different situations.

[0044] After a period of use, the density distribution of the battery electrolyte is not uniform, and the densities of the upper, middle and lower parts are 1.22g / ml, 1.25g / ml, and 1.28g / ml, respectively. During the movement of the car, due to the inertia generated when the vehicle starts, stops, accelerates, decelerates, etc., the relieving agent of 1.2±0.2g / ml moves on the top layer of the battery, and the relieving agent of 1.2...

Embodiment 3

[0048] Figure 11-15 It is the electrolyte delamination mitigation agent of embodiment 3, and the distribution of the mitigation agent during battery use and the stirring situation during use.

[0049] Example 3 uses PP to wrap SiO 2 Solid material, in the form of granules, with a diameter of 0.4mm to 0.9mm. There are two types of density, one is 1.2±0.2g / ml, the other is 1.28±0.2g / ml, and their proportions are 40% respectively wt, 60% wt, the total amount added is 5%wt of the total amount of electrolyte. so that it can function in different situations.

[0050] After a period of use, the density distribution of the battery electrolyte is not uniform, and the densities of the upper, middle, and lower parts are 1.26g / ml, 1.29g / ml, and 1.32g / ml, respectively. During the movement of the car, due to the inertia generated when the vehicle starts, stops, accelerates, decelerates, etc., the relieving agent of 1.2±0.2g / ml moves on the top layer of the battery, and the relieving age...

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Abstract

The invention provides a lead-acid storage battery electrolyte delamination mitigation agent, which is one or more of PP, PE, PVC, PU and polyvinyl fluoride polymer materials. The present invention utilizes the inertial effect when the vehicle starts, stops, accelerates, decelerates and other non-uniform motions or bumps, or the density change of the electrolyte itself when the battery is charged and discharged, to mix the electrolyte and slow down the stratification of the electrolyte. It is mainly a fine particle composed of a series of properties such as acid corrosion resistance, oxidation resistance, and non-conductivity. It is added into the electrolyte after the battery is formed, and has the advantages of simple manufacture, convenient addition, low cost, and obvious effect.

Description

technical field [0001] The invention relates to a lead-acid accumulator electrolyte stratification alleviating agent. Background technique [0002] Since the lead-acid battery was invented, it has become the largest and most widely used battery variety in the world because of its low price, easy-to-obtain raw materials, reliable performance, easy recycling, and high-current discharge. [0003] In said batteries, lead peroxide (PbO 2 ) as the anode, spongy lead (Pb) as the cathode, dilute sulfuric acid (H 2 SO 4 ) as the electrolyte. When the battery is in use, due to the high utilization rate of the upper active material, for the discharge of the lead-acid battery, it is easy to cause the upper part of the electrolyte density to be low and the lower part to be high. At the same time, during the standing process of the battery, the electrolyte will also cause its own stratification due to gravity. At the same time, due to the role of the electrode group in the battery to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/08
CPCH01M10/08Y02E60/10
Inventor 刘长来史俊雷张祖波刘凯夏诗忠史永刚
Owner CAMEL GRP XIANGYANG BATTERY
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