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Charging and discharging method and device and mobile terminal

A charge-discharge device and mobile terminal technology, applied to circuit devices, battery circuit devices, secondary battery charging/discharging, etc., can solve the problem of low charging and discharging efficiency of mobile terminals

Inactive Publication Date: 2019-08-02
NUBIA TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a charging and discharging method, device and mobile terminal, aiming to solve the problem of low charging and discharging efficiency of mobile terminals at low temperatures

Method used

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  • Charging and discharging method and device and mobile terminal
  • Charging and discharging method and device and mobile terminal
  • Charging and discharging method and device and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Such as image 3 As shown, in this embodiment, a charging and discharging method includes:

[0068] S10. Obtain the temperature of the battery in the mobile terminal;

[0069] S20. Determine whether the battery temperature is lower than a preset temperature threshold;

[0070] If so, then S30, turn on the heating module to heat the battery; so that the temperature of the battery reaches a preset temperature threshold, so as to perform normal charging and discharging;

[0071] Otherwise, S40. Charge and discharge the battery according to the preset rated current.

[0072]In this embodiment, the heating module is used to heat the battery at low temperature to increase the temperature of the battery cell, improve the lithium ion activity of the battery cell, improve the charging and discharging efficiency of the battery, and increase the available power of the battery in the current application mode.

[0073] In this embodiment, the heating module includes a resistive c...

Embodiment 2

[0091] Such as Figure 8 As shown, in this embodiment, a charging and discharging device includes: a heating module, the heating module is set in the mobile terminal, when the battery temperature in the mobile terminal is lower than the preset temperature threshold, the heating A module heats the battery.

[0092] In this embodiment, the heating module is used to heat the battery at low temperature to increase the temperature of the battery cell, improve the lithium ion activity of the battery cell, improve the charging and discharging efficiency of the battery, and increase the available power of the battery in the current application mode.

[0093] In this embodiment, the heating module includes a resistive coil, which has the advantage of being ultra-thin and can be conveniently arranged in a mobile terminal, and the resistive coil is arranged on the surface of the battery. Such as Figure 4 As shown, it is a layout diagram of the resistive coil (that is, the heating coil...

Embodiment 3

[0111] In this embodiment, a mobile terminal, in addition to including figure 1 The above components also include the charging and discharging device described in the second embodiment.

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Abstract

The invention discloses a charging and discharging method and device and a mobile terminal, and relates to the technical field of the mobile terminal. The method comprises the steps: obtaining the battery temperature in the mobile terminal; judging whether the battery temperature is lower than the preset temperature threshold; and starting a heating module to heat the battery if the judgment result is yes. The heating module heats the battery at low temperature so that the temperature of the battery cell is increased, the lithium ion activity of the battery cell is improved, the charging and discharging efficiency of the battery is improved and the battery available power in the current application mode is improved.

Description

technical field [0001] The present invention relates to the technical field of mobile terminals, in particular to a charging and discharging method, device and mobile terminal. Background technique [0002] At present, most mobile phone batteries use lithium-ion polymer batteries. Lithium ions are not active at low temperatures, and the battery power at low temperatures is greatly reduced compared with normal temperature. This is mainly reflected in the low-temperature mode of lithium ions. The activity of lithium ions is reduced. As a result, the internal resistance of the battery cell increases, resulting in a substantial decrease in the actual charging capacity and discharging capacity. That is, the charging time of the battery is shortened at low temperature, and the actual charging power is also greatly reduced; the discharge power is also greatly reduced compared with normal temperature (the lower the temperature, the greater the decrease). [0003] Generally, batteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH02J7/0091H01M10/443Y02B40/00Y02E60/10
Inventor 祁庆克
Owner NUBIA TECHNOLOGY CO LTD
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