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A charging method and mobile terminal

A mobile terminal and charging method technology, applied in the field of communication, can solve the problems of affecting user experience, reducing the cycle life of rechargeable batteries, prolonging the charging time, etc., to achieve the effect of improving the use experience

Active Publication Date: 2019-03-05
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a charging method and a mobile terminal to solve the problems in the prior art that the cycle life of the rechargeable battery is reduced and the charging time is extended when the cycle life of the rechargeable battery is extended by reducing the charging current, which affects user experience. question

Method used

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Embodiment 1

[0028] Such as figure 1 As shown, the charging method provided by Embodiment 1 of the present invention is applied to a mobile terminal, including:

[0029] Step 101, counting the number of first charging cycles when the power of the rechargeable battery of the mobile terminal reaches a preset value.

[0030] The calculation method of the number of charging cycles is: when the power of the rechargeable battery reaches 100%, it is determined to complete one charging cycle. For example: when the mobile terminal is charging, the power of the rechargeable battery reaches from 0% to 100%, then the number of charging cycles corresponding to this charging is 1; when the mobile terminal is charging, the power of the rechargeable battery reaches from 20% to 100%. 90 / 90, then the number of charging cycles corresponding to this charging is 0.7.

[0031] When counting the first number of charging cycles when the power of the rechargeable battery of the mobile terminal reaches the preset...

Embodiment 2

[0045] Such as figure 2 As mentioned above, the charging method provided in Embodiment 2 of the present invention is applied to a mobile terminal, including:

[0046] Step 201 , according to the properties of the rechargeable battery, divide the total number of charging cycles supported by the rechargeable battery into M consecutive and non-overlapping stages.

[0047] Introduce a component (such as fuel gauge IC or charge management IC) that can record the number of charging cycles into the rechargeable battery circuit of the mobile terminal. According to the characteristics of the lithium-ion rechargeable battery, the total number of charging cycles supported by the rechargeable battery is obtained, and then the total number of charging cycles supported by the rechargeable battery is divided into M consecutive and non-overlapping stages.

[0048] For example: the total number of charging cycles supported by the rechargeable battery is 200 times, and the corresponding charg...

Embodiment 3

[0078] The following is an embodiment of a mobile terminal provided by Embodiment 3 of the present invention. For details not described in detail in the embodiment of the mobile terminal, reference may be made to the foregoing method embodiment.

[0079] An embodiment of the present invention provides a mobile terminal, such as image 3 As shown, the mobile terminal 300 includes:

[0080] Statistical module 301, for counting the number of first charging cycles when the power of the rechargeable battery of the mobile terminal reaches a preset value;

[0081] The search module 302 is configured to search for the first charge cut-off voltage corresponding to the first charge cycle number in the pre-generated matching relationship table between the number of charge cycles and the charge cut-off voltage, wherein a higher number of charge cycles in the matching relationship table corresponds to The charging cut-off voltage is less than or equal to the charging cut-off voltage corre...

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Abstract

The invention provides a charging method and a mobile terminal. The charging method comprises the steps that a first charging circulating index that the electricity quantity of a rechargeable battery of the mobile terminal reaches a preset value is counted; a pre-generated matching relation table of the charging circulating index and charging cut-off voltage is searched for first charging cut-off voltage corresponding to the first charging circulating index, wherein the charging cut-off voltage corresponding to the high charging circulating index in the matching relation table is smaller than or equal to the charging cut-off voltage corresponding to the low charging circulating index; the charging cut-off voltage of the rechargeable battery is set as the first charging cut-off voltage, and constant charging current provided by a charger is received for charging. The different stages of the cycle life of the rechargeable battery are recognized, the charging cut-off voltage is correspondingly reduced, and therefore the service life of the rechargeable battery is prolonged on the basis of not reducing charging speed.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a charging method and a mobile terminal. Background technique [0002] With the wide application of lithium-ion batteries in various electronic products, the requirements for the cycle life of lithium-ion batteries are also getting higher and higher. As the number of battery cycles increases, the SEI film of the battery cell will be decomposed and repaired at the same time, and the electrolyte will also be consumed accordingly, which will cause lithium ions to deposit on the surface of the negative electrode graphite, forming lithium metal with irreversible electricity, causing pore plugging or accelerated side effects. reaction, which leads to the attenuation of the battery power, and in serious cases, lithium dendrites will be formed, which will cause the risk of piercing the isolation film and causing a short circuit. [0003] According to the characteristics of lithiu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/44H02J7/00Y02E60/10
Inventor 魏强
Owner VIVO MOBILE COMM CO LTD
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