Pulse container formation method for high-capacity lead-acid battery

A lead-acid battery, internalized technology, applied in the direction of lead-acid battery, lead-acid battery construction, secondary battery charging/discharging, etc., to achieve the effect of reducing impact

Active Publication Date: 2010-11-03
HUNAN FENGRI ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there is no relevant report about the internalization metho

Method used

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  • Pulse container formation method for high-capacity lead-acid battery
  • Pulse container formation method for high-capacity lead-acid battery
  • Pulse container formation method for high-capacity lead-acid battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: Taking the NM450 battery commonly used in electric locomotive railway batteries as an example, the specific implementation of the low-frequency positive pulse formation charging method of the present invention is further described.

[0028] Put 96 NM450 batteries assembled with green plates in the water tank, pour 1.23g / cm3 sulfuric acid, the amount of acid per cell is 7500ml, after 2 hours of acid filling, turn on the power and start to form. Pulse internalization proceeds in five phases:

[0029] The first stage is the internalization into the boot stage, using 0.1C constant current charging for 3h.

[0030] The second stage is low-frequency positive pulse formation, the pulse frequency is 0.1Hz, the amplitude of the positive pulse is 0.4C, the pulse time is 7s, and the intermittent time is 3s, for a total of 26h. Stand still for 20-30min, then discharge at 0.3C for 1h.

[0031] The third stage is low-frequency positive pulse formation, the pulse frequ...

Embodiment 2

[0043] Embodiment 2: In order to further illustrate the process of the present invention, exemplify below in conjunction with 2V170Ah:

[0044]

[0045] After testing, the performance of the battery has reached the national standard, which is 64.5 hours shorter than the ordinary internalization process.

Embodiment 3

[0046] Embodiment 3: In order to further illustrate the process of the present invention, illustrate below in conjunction with 2V800Ah:

[0047]

[0048] After testing, the performance of the battery has reached the national standard, which is 57.5 hours shorter than the ordinary internalization process.

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PUM

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Abstract

The invention relates to a pulse container formation method for a high-capacity lead-acid battery. The low-frequency positive pulse container formation process is divided into five stages: container formation guide, low-frequency positive pulse formation, low-frequency positive pulse formation, low-frequency positive pulse formation charging, and container formation finishing. The method can shorten the formation time of a high-capacity valve-control seal lead-acid battery, ensure the battery quality, shorten the formation charging time, enhance the production efficiency, reduce the battery occupation site and lower the production cost.

Description

technical field [0001] The invention relates to a pulse forming method for a large-dense valve-controlled sealed lead-acid storage battery. Background technique [0002] According to general standards, lead-acid batteries with a capacity below 65Ah are called small dense batteries, and lead-acid batteries with a capacity above 65Ah are called large dense batteries. Compared with external formation, internal formation has no acid mist escape and is more environmentally friendly. At present, some domestic battery manufacturers have adopted the battery internal formation process. In the small battery factories used in electric vehicles and electric motorcycles, some of them have adopted the formation method of positive and negative pulse internal formation. [0003] The invention patent with the patent number ZL 200510040649.7 "A Formation Method for Shortening the Internal Formation Time of Lead-acid Batteries" discloses a pulse internal formation method of "two charges and o...

Claims

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Application Information

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IPC IPC(8): H01M10/44H01M10/12
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 黎福根杨水根彭建辉黎辉文
Owner HUNAN FENGRI ELECTRIC GROUP
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