Charging method and system for battery pack

A charging method and battery pack technology, which are applied in the direction of secondary battery charging/discharging, battery circuit devices, and energy-saving charging equipment, can solve the problems of reducing battery life, avoid the reduction of battery life, ensure charging safety, Effect of improving charging efficiency

Active Publication Date: 2014-02-12
中国移动通信集团甘肃有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the technical problem that the charging method in the prior art reduces the battery life, the present invention proposes a battery pack charging method and system

Method used

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  • Charging method and system for battery pack
  • Charging method and system for battery pack
  • Charging method and system for battery pack

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Embodiment Construction

[0019] The battery pack charging method and system of the present invention can be simultaneously applied to the charging of lead-acid battery packs and lithium battery packs. According to the monitored battery pack voltage, charging current and charging time, the battery pack is controlled to be charged by constant current, constant voltage or float charge.

[0020] In an embodiment of the present invention, the charging current is represented by the battery capacity, where C represents the battery capacity, for example, 0.05C represents that the charging current is 0.05 multiplied by the battery capacity; C10 represents the 10-hour rate capacity value, and the charging current is the battery capacity divided The value obtained by using 10, if a 150Ah battery is used, then the charging current is 15A; similarly, C20 represents the capacity value at a rate of 20 hours, and the charging current is the value obtained by dividing the battery capacity by 20.

[0021] The present i...

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PUM

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Abstract

The invention discloses a charging method and a charging system for a battery pack. The system comprises a monitoring device used for monitoring the voltage of the battery pack, charging current and charging time and a charging control device used for respectively carrying out constant current charging, constant voltage charging and floating charging on the battery pack according to the voltage of the battery pack, the charging current and the charging time. With the charging method and the charging system for the battery pack, through monitoring the voltage of the battery pack, the charging current and the charging time in the process of charging, charging of the battery pack in different phases is carried out according to monitoring results; so reduction in the service life of batteries caused by over charging or insufficient charging of the battery pack is avoided, and charging efficiency is improved while charging safety of the battery pack is guaranteed.

Description

technical field [0001] The invention relates to the technical field of communication power supplies, in particular to a method and system for charging a battery pack. Background technique [0002] Judging from the current usage of mobile communication base station batteries, it is common that the battery capacity drops too fast and the service life is short. Even in just 1 to 2 years, the battery capacity is only 30% to 40% of the nominal capacity, and some are only 10%. ~20%. After 1 to 4 years of operation, most base station batteries have a capacity of only about 50% of their nominal capacity, far short of their designed service life. According to the requirements of the battery maintenance standard, as long as the capacity of the battery drops to 80% of its nominal capacity, its service life will be terminated and it should be replaced. However, due to the current charging technology Due to the limitation of conditions, secondary utilization cannot be carried out, resu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H02J7/00
CPCY02E70/40H01M10/44H02J7/007H02J2207/10Y02E60/10
Inventor 包静王继珍张小龙
Owner 中国移动通信集团甘肃有限公司
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