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A method and device for activating a rechargeable battery

A charging power supply and activation voltage technology, which is applied to battery circuit devices, circuit devices, secondary battery charging/discharging, etc., can solve the problem that the battery cannot be taken out, and achieve simple effects without increasing hardware costs

Active Publication Date: 2016-12-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For handheld terminals with built-in batteries (such as iPads), users cannot take out the batteries, and neither of these two methods works

Method used

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  • A method and device for activating a rechargeable battery
  • A method and device for activating a rechargeable battery
  • A method and device for activating a rechargeable battery

Examples

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Embodiment Construction

[0030] In this embodiment, the handheld terminal itself utilizes the charger to output high voltage (such as 5.0V). Under the condition of keeping the charging circuit unchanged, the battery after the over-discharge lock is actively activated through control so that it can be charged normally.

[0031] The working mechanism of this method is to use (1) the charger output voltage is a high-voltage power supply (such as 5.0V), which is greater than the battery voltage (such as 3.7V); (2) the charging triode or MOS tube can be controlled; (3) the battery triode or MOS The tube can be controlled. For the charging circuit without charging path management, this part can be omitted.

[0032] In this embodiment, by controlling the conduction of the triode or MOS tube between the charger output and the battery (including the charging triode or MOS tube and the battery triode or MOS tube; or only including the charging triode or MOS tube), the charger output is higher than The activatio...

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Abstract

The invention discloses a method and a device for activating a rechargeable battery. The method comprises the following steps: detecting whether the battery is in an over-discharge locking state or not by a power supply management chip when a charge power supply is connected, and controlling the charge power supply to exert an activation voltage higher than the voltage of the battery onto the battery to activate the battery by the power supply management chip when the battery is in the over-discharge locking state. According to the method and the device for activating the rechargeable battery, a charge tube is controlled to be communicated with a battery tube, and then a high voltage is directly exerted onto the battery, so that the battery is activated; an original charge circuit still serves as a hardware circuit, so that the cost of hardware is not increased; meanwhile, the control process is simple, flexible and reliable. According to the method and the device for activating the rechargeable battery, whether the battery is in the over-discharge locking state or not can be detected automatically, and the battery can be activated only by communicating the charge tube and the battery tube and exerting the high-voltage power supply onto two ends of the battery in such a case that the charge power supply is connected when the battery is in the over-discharge locking state and cannot be charged.

Description

technical field [0001] The invention relates to the field of battery technology, in particular to a method and device for activating a rechargeable battery. Background technique [0002] At present, the charging control of the battery generally includes the following processes: trickle charging process - fast charging process - constant voltage or pulse charging process - charging speed. The trickle charging process is mainly for charging when the battery is over-discharged and the output is too low to meet the minimum requirements required by the system. In this case, the battery is in the active state, that is, it can be charged, and for the battery that is locked by over-discharge, it cannot be charged by trickle charging. The usual solution to this situation is: [0003] (1) Replace the battery with a good condition, that is, a battery that can be charged normally; [0004] (2) Take out the battery, and activate the battery with a device that can activate the battery (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42H02J7/00
CPCH01M10/44H02J7/00Y02E60/10
Inventor 李启瑞刘双霖邱晓光邵永平
Owner ZTE CORP
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