Management method for battery electric power

A management method and technology of battery power, applied in the direction of secondary battery charging/discharging, secondary battery repair/maintenance, measuring electricity, etc., can solve battery safety problems and other issues, and achieve the effect of improving safety

Inactive Publication Date: 2009-07-22
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a battery power management method to solve the battery safety problem caused by excessive frequent charging and discharging

Method used

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  • Management method for battery electric power

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Embodiment Construction

[0017] In order to further illustrate the technical means and functions adopted by the present invention to achieve the intended purpose, a battery power management method proposed by the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] The present invention needs to test and analyze the power consumption current of the application with the largest power consumption, and ensure that the external power supply system supplies sufficient power to the terminal, which needs to be considered during system design. If the external power supply is critical, it will not only cause the system to work abnormally, but also cause high heat caused by the system power control. And this kind of high heat is also one of the hidden dangers of battery safety.

[0019] The present invention sets a voltage first threshold value A lower than the nominal voltage C and a voltage second threshold B greater than the nominal volta...

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Abstract

The invention discloses a management method for power source, comprising: according to a battery electric quantity curve, a first voltage threshold less than the nominal voltage and a second voltage threshold more than the nominal voltage are preset; if actual voltage is less than the first voltage threshold, the battery is charged, while the actual voltage is more than the second voltage threshold, the charging is stopped; and if the actual voltage is not more than the nominal voltage and not less than the first voltage threshold, the voltage of the battery is detected in the period of T/n, while the actual voltage is not less than the nominal voltage and not more than the second voltage threshold, the voltage of the battery is detected in the period of T. The technical proposal adopted by the invention can not only accurately detect the voltage, thus avoiding overdischarge, but also change frequent charge-discharge process; furthermore, the invention can improve the safety of the battery and prolong the service life of the battery without additional hardwares.

Description

technical field [0001] The invention belongs to the field of battery technology, in particular to a method for managing battery power. Background technique [0002] The batteries currently used in end products are mainly polymer batteries. Polymer batteries are widely used, and factors affecting their life and safety include temperature, charging voltage, and cycle charging times. Each polymer battery has its nominal voltage and protection voltage. When the protection voltage is exceeded and continued to be charged for a long time, it will inevitably cause irreversible damage to the battery capacity, and it will also bring hidden dangers in terms of safety. If the battery is charged and discharged for a long time at an excessively high ambient temperature, it will also affect the safety of the battery. In short, overvoltage charging and frequent charging and discharging are extremely detrimental to the safety of the battery. [0003] The charging technology of mobile term...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44G01R31/36
CPCY02E60/12Y02E60/10
Inventor 陈琪
Owner ZTE CORP
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