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Valve-regulated lead acid battery inner formation technology capable of controlling battery separator saturation

A technology for controlling separators and batteries, which is applied in the direction of lead-acid batteries, lead-acid battery construction, secondary batteries, etc., and can solve problems such as inability to effectively control the saturation of separators

Active Publication Date: 2014-07-23
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the technical problem that the existing valve-controlled sealed lead-acid battery cannot effectively control the saturation of the separator within the optimal range during the internal formation of the existing valve-controlled sealed lead-acid battery. Formation process, which can effectively control the saturation of the separator of the valve-regulated sealed lead-acid battery at the optimal 95%-98%

Method used

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  • Valve-regulated lead acid battery inner formation technology capable of controlling battery separator saturation

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Embodiment

[0023] Embodiment: A valve-controlled sealed battery internalization process for controlling the saturation of the separator in this embodiment, the battery is a 6-DZM-12 battery, such as figure 1 shown, including the following steps:

[0024] S1: add surplus acid to the battery;

[0025] S2: Place the battery in a water bath at 20°C to cool down, and let the battery rest for 3 hours;

[0026] S3: The battery is internalized and charged (internalized and charged using the existing mature technology);

[0027] S4: 2 hours before the end of formation charging, use the constant current of 1.2A at the end of the formation to pump acid. After 0.5 hours of acid pumping, check whether there is free acid in the upper part of the battery pole group. If there is free acid, take it out and check again , and work in this cycle until there is no free acid in the upper part of the battery pole group;

[0028] S5: Cover the acid injection hole of the battery with a valve cap, and stick a ...

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Abstract

The invention discloses valve-regulated lead acid battery inner formation technology capable of controlling battery separator saturation. The valve-regulated lead acid battery inner formation technology comprises following steps: a storage battery is filled with excess acid, is subjected to cooling via water bath, is allowed to stand for 2 to 4h, is subjected to inner formation charging, and then is subjected to constant flow acid removing; an acid injection hole of the storage battery is covered with a valve bonnet, and the valve bonnet is glued with a cover plate; the storage battery is subjected to constant-current discharge, and discharge capacity is detected; and at last, the storage battery is subjected to constant current charge, wherein charging amount is 1.5 to 2 times of the discharge capacity. The valve-regulated lead acid battery inner formation technology is capable of controlling valve-regulated lead acid battery separator saturation to be optimal 95 to 98%, so that effective formation of gas compound channels is realized.

Description

technical field [0001] The invention relates to the technical field of lead-acid batteries, in particular to a valve-controlled sealing battery internalization process for controlling the saturation of a separator. Background technique [0002] The most important principle of valve-regulated sealed lead-acid battery is the principle of oxygen cycle: when the battery is charged, the oxygen generated by the positive electrode passes through the gas channel in the separator to the negative electrode to form water, which realizes the sealing of the lead-acid battery during use. If this principle is to be realized, there must be a gas channel in the separator, that is, the electrolyte cannot be completely absorbed in the separator, and there must be enough empty volume for the gas to pass through. [0003] Existing storage battery companies generally use the method of filling excess acid, and use constant voltage or constant current to extract acid after the battery is formed. W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/12H01M10/44
CPCH01M10/121H01M10/446Y02E60/10Y02P70/50
Inventor 张凯马洪涛张绍辉项晨
Owner CHAOWEI POWER CO LTD
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