Self-maintaining descending slow-pulse fast charging method for lead-acid battery

A lead-acid battery, fast charging technology, applied in secondary battery charging/discharging, battery circuit device, secondary battery repair/maintenance, etc., can solve the secondary failure of lead-acid battery, repair theory and repair device level vary Qi, repair time manual setting and other issues

Inactive Publication Date: 2012-06-20
荣维山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] At present, the problem of the cycle life of the lead-acid battery is mostly solved by pulse repair, and it is carried out after the lead-acid battery reaches a certain degree of vulcanization. Most of the repair time is manually set, and the repaired lead-acid battery The service time of the lead-acid battery is about 0.5 to 1 year. The uneven level of repair theory and repair equipment also causes the frequent occurrence of secondary failure problems of lead-acid batteries.

Method used

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  • Self-maintaining descending slow-pulse fast charging method for lead-acid battery
  • Self-maintaining descending slow-pulse fast charging method for lead-acid battery
  • Self-maintaining descending slow-pulse fast charging method for lead-acid battery

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Embodiment

[0121] The charging object of the embodiment of the present invention is the powerful maintenance-free electric bicycle storage battery FC12-12 produced by Qiangqiang Power Technology Co., Ltd., Nanchang City, Jiangxi Province. The capacity of the storage battery at a 20-hour discharge rate is 12AH. According to the present invention, for lead-acid storage batteries According to the requirements of the internal structure, the inside of the battery has been strictly modified. During the entire transformation process, an overcurrent protection device for lead-acid batteries has been added to ensure safety.

[0122] Below in conjunction with the inventive concept of the present invention, carry out the detailed elaboration of the present invention method for a certain period of time in the charging process of lead-acid accumulator: It should be noted that ε in this embodiment is taken as 0.05, and the upper limit of the voltage limit threshold is 14.4, and the charging cut-off curr...

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Abstract

The invention discloses a self-maintaining descending slow-pulse fast charging method for a lead-acid battery. The invention is characterized in that a temperature sensor and a detection circuit module are arranged in each unit cell of the lead-acid battery; the detection circuit module comprises a unit cell voltage and temperature sampling circuit, a singlechip, a sampled signal conditioning circuit; the voltage and temperature changing rate of each unit cell of the lead-acid battery is sampled, and simultaneously a charging current is sampled; and sampled data is transmitted to the micro processing module of a charger through the detection circuit module in each unit cell and a peripheral bus interface in a bus communication mode, and the micro processing module of the charger carries out adaptive control on the charging process according to the transmitted data. The invention can better inhibit each unit cell overcharging, control the occurrence of thermal runaway and predicate unit cell invalidation tendency in advance; and since a descending slow-pulse charging mode is adopted in the whole charging process, the invention has the advantages of effectively inhibiting the polarization phenomena generated in the charging process, accelerating the charging speed and the like.

Description

technical field [0001] The invention relates to a self-maintenance decreasing slow pulse fast charging method of a lead-acid battery, which belongs to the technical field of lead-acid battery charging. Background technique [0002] Most of the current charging methods for lead-acid batteries are based on the standard three-stage charging method. This method has a simple control strategy, is relatively mature, and is also accepted by the public. However, with the accelerated pace of society and the impact of global resource strategies, using this method There are serious deficiencies in charging lead-acid batteries: [0003] 1. The charging time is too long: [0004] Generally, the standard three-stage charging method takes 8 to 10 hours to charge the lead-acid battery, which can no longer meet people's current social needs and offset the cost-effective advantages of lead-acid batteries compared to other batteries; [0005] 2. Accelerated the failure time of lead-acid batte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCY02E60/10
Inventor 高小群刘洪娥王任超刘东林高述辕
Owner 荣维山
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