Lead acid battery charging method and device

A technology of lead-acid battery and charging method, which is applied in the directions of secondary battery charging/discharging, secondary battery repair/maintenance, electrical program control, etc. Corrosion and oxide deposition, prolong life, reduce water loss effect

Inactive Publication Date: 2010-03-03
SHANGHAI AIKONN INFORMATION TECH +2
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mas's three laws reveal the acceptability of lead-acid batteries when charging, but they cannot solve the problem of gradual increase of sulfuric acid concentration inside the battery under long-term

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lead acid battery charging method and device
  • Lead acid battery charging method and device
  • Lead acid battery charging method and device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0009] figure 1 A block diagram showing the structure of the lead-acid battery charging device of the present invention.

[0010] The charging device charges the lead-acid battery 104, wherein a constant-current pulse power supply 103 is used to charge the lead-acid battery, and the pulse current Ip of the constant-current pulse power supply 103 is greater than the discharge current If of the lead-acid battery when the backup power supply is working, And the pulse current Ip>0.1C, C is the nominal capacity of the lead-acid battery.

[0011] The lead-acid battery charging device of the present invention may further include a detection unit 101 and a control unit 102.

[0012] The detection unit 101 is used to check the voltage of the lead-acid battery, so as to monitor the voltage VB of the lead-acid battery 104 in real time.

[0013] The control unit 102 is configured to modulate the constant current pulse power supply, and modulate the duty cycle of the constant current pulse power s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a lead acid battery charging method and a device. The lead acid battery charging device charges a lead acid battery, wherein a constant current pulse power is used for charging the lead acid battery; the pulse current Ip of the constant current pulse power is larger than the discharging current If of the lead acid battery when a backup power works; moreover, the pulse current Ip is more than 0.1 C; and C is the nominal capacity of the lead acid battery. The lead acid battery charging method comprises the steps of adopting the pulse current to charge, and adjusting theduty factor of the pulse current according to the voltage of the battery to realize the average charging current variation at different charging periods, and reduce the water loss in the charging process. Meanwhile, charging under a large enough pulse current can eliminate the acid corrosion and oxide precipitate occurring at the bottom part of the battery caused by the long term fixation of the lead acid battery. The invention adopts the form of regularly supplementing to replace the traditional floating charging at constant voltage, which reduces the phenomena caused by long term floating charging such as water loss of the lead acid battery, unit cell unbalance of battery and the like, and prolongs the service life of the lead acid battery.

Description

technical field [0001] The invention relates to the field of battery charging, in particular to a charging method and device for a backup power lead-acid battery. technical background: [0002] As the main energy storage device for backup power, lead-acid batteries are widely used in important equipment, facilities or buildings in various industries. [0003] Since 1972, American scientist Mas proposed the famous Mas three laws at the Second World Electric Vehicle Annual Conference, the charging of lead-acid batteries has been based on this. Whether it is the early constant voltage charging, the recent three-stage charging, or the pulse charging whose theory is not perfect enough, they are all based on Maas's three laws. Mas's three laws reveal the acceptability of lead-acid batteries when charging, but they cannot solve the problem of gradual increase of sulfuric acid concentration inside the battery under long-term floating charging, unbalanced cell capacity caused by une...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01M10/44G05B19/04
CPCY02E60/12Y02E60/10
Inventor 胡渝
Owner SHANGHAI AIKONN INFORMATION TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap