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Quasi-gel valve controlled lead acid accumulator

A lead-acid battery, colloidal electrolyte technology, applied in the direction of lead-acid battery, lead-acid battery construction, sustainable manufacturing/processing, etc. Slow down the phenomenon of water loss, prolong the service life, the effect of slow water loss

Inactive Publication Date: 2009-04-01
浙江永达电力实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The "drying up" of the electrolyte causes the local acid concentration of the battery to increase, which accelerates the corrosion of the grid and the sulfation of the lead paste

Method used

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  • Quasi-gel valve controlled lead acid accumulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Such as figure 1 , a quasi-colloidal valve-regulated lead-acid battery, comprising a battery tank 1, a battery cover 2 arranged on the battery tank 1, a positive plate 3 and a negative plate 4 are arranged in the battery tank 1, and the positive plate 3 and the negative electrode An AGM separator 5 is arranged between the plates 4 , and a colloidal electrolyte protective layer 6 is arranged above the positive plate 3 , the negative electrode 4 and the AGM separator 5 in the battery tank 1 . The colloidal electrolyte protection layer 6 is prepared by using 3% nano fumed silicon dioxide, 60% deionized water, and 37% sulfuric acid. A bus bar 7 is arranged above the colloidal electrolyte protective layer 6 in the battery container 1 . The AGM separator 5 is used to absorb electrolyte. The combination of AGM separator and colloid overcomes the shortcomings of high internal resistance, high-current discharge performance and low-temperature discharge performance of colloidal...

Embodiment 2

[0017] The structure of this embodiment is the same as that of Embodiment 1, except that the colloidal electrolyte protective layer 6 is prepared by 10% nano fumed silicon dioxide, 50% deionized water, and 40% sulfuric acid.

Embodiment 3

[0019] The structure of this embodiment is the same as that of Embodiment 1, except that the colloidal electrolyte protective layer 6 is prepared by using 15% nano fumed silicon dioxide, 40% deionized water, and 45% sulfuric acid.

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Abstract

The invention discloses a quasi-colloid valve-regulated lead acid storage battery. The storage battery comprises a battery jar and a battery cover arranged on the battery jar, a positive plate and a negative plate are arranged in the battery jar, an AGM separator is arranged between the positive plate and the negative plate, and a colloidal electrolyte protective layer is arranged above the positive plate, the negative plate and the AGM separator in the battery jar. The quasi-colloid valve-regulated lead-acid storage battery has the advantages of slow dehydration, relatively stable electrolyte, uneasy delamination, comparatively even grid corrosion and long service life.

Description

technical field [0001] The invention relates to a quasi-colloid valve-regulated lead-acid storage battery. Background technique [0002] At present, VRLA batteries are widely used in systems such as communications, electric power, railways, military industry, and civilian electric mopeds. The operating results of VRLA batteries show that AGM valve-regulated lead-acid batteries have small internal resistance, superior high-current performance, and high gas recombination efficiency, but AGM separator batteries have not reached their expected service life at home and abroad. The reasons leading to the premature end of life of the battery are corrosion and growth of the grid, loss of active material or reduction of available amount, sulfation of the negative electrode and corrosion of the pole, etc., and the more important reason is that the VRLA battery is caused by the "drying up" of the electrolyte. The "drying up" of the electrolyte causes the local acid concentration of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/12
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 包有富
Owner 浙江永达电力实业股份有限公司
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