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Charging method, charging device, terminal and readable storage medium

A charging method and charging device technology, which are applied to battery circuit devices, circuit devices, charging/discharging of secondary batteries, etc., can solve the problems of shortening the service life of lithium batteries, destroying the structure of cathode materials, and accelerating the consumption of electrolyte, so as to prolong the battery life. The effect of the service life and the shortening of the charging time

Active Publication Date: 2019-08-06
NINGDE AMPEREX TECH
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Problems solved by technology

[0004] In this existing charging method, due to the stage of constant voltage charging, the cathode potential of the lithium battery gradually increases, and the charging speed gradually slows down. At the end of charging of the battery cell, the cathode will be at a high potential for a long time, so It is easy to produce side reactions that lead to the destruction of the structure of the cathode material in the lithium battery or the accelerated consumption of the electrolyte, which affects the service life of the lithium battery, that is, the problem of reducing the service life of the lithium battery

Method used

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  • Charging method, charging device, terminal and readable storage medium
  • Charging method, charging device, terminal and readable storage medium
  • Charging method, charging device, terminal and readable storage medium

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Embodiment Construction

[0041] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0042] Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

[0043] refer to figure 1 , an embodiment of the charging device 1 of the present invention is suitable for a battery 9 and includes a control unit 12 and a charging and discharging module 11 . The battery 9 is a lithium-ion battery (Lithium-ion battery), which is usually referred to as a lithium battery for short.

[0044] The control unit 12 is electrically connected to the charging and discharging module 11 to implement a charging method, and then controls the charging and discharging module 11 to charge or discharge the battery 9 . Specifically, the charging device 1 is, for example, a charger. The control unit 12 is, for example, a microcontroller (Microcontroller, MCU), a processor...

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Abstract

A charging method, a charging device executing the charging method, a terminal and a readable storage medium are provided. The charging method includes the steps of in a first stage, charging, with afirst stage current, a battery to a first stage voltage; and in a second stage, charging, with a second stage current, the battery to a second stage voltage, wherein the second stage voltage is greater than the first stage voltage, and the second stage current is less than the first stage current. The charging method can shorten the time during which the cathode of a lithium battery is at a high potential during the charging process, thereby prolonging the service life of the lithium battery and shortening the charging time.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery charging method, a charging device, a terminal and a readable storage medium. Background technique [0002] Lithium-ion battery, also known as lithium battery, is a rechargeable battery widely used in consumer products, digital products, power products, medical and security fields. [0003] How to charge lithium batteries is one of the key technologies in the application of lithium batteries. In the prior art, when charging lithium batteries, constant current (Constant current, CC) charging and constant voltage (Constant voltage, CV) charging are generally used. Two-stage charging method for charging. That is to use a constant current to charge the lithium battery with a constant current until the voltage of the lithium battery cell reaches the charging limit voltage of one cell, and then use the charging limit voltage of the cell to charge the lithium battery at a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH02J7/007H02J7/0036H01M10/44Y02E60/10
Inventor 党琦高潮郑强方占召
Owner NINGDE AMPEREX TECH
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