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Method for determining charging voltage threshold and method for determining charging strategy

A charging voltage and charging strategy technology, which is applied in the fields of charging voltage threshold determination and charging strategy determination, can solve problems such as danger and cumbersome charging voltage threshold, and achieve the effect of avoiding cumbersome procedures

Active Publication Date: 2020-12-11
BEIJING CHJ AUTOMOTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a charging voltage threshold determination method and a charging strategy determination method to solve the current cumbersome and dangerous problem of determining the charging voltage threshold of a battery

Method used

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  • Method for determining charging voltage threshold and method for determining charging strategy
  • Method for determining charging voltage threshold and method for determining charging strategy
  • Method for determining charging voltage threshold and method for determining charging strategy

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Embodiment Construction

[0072] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0073] see figure 1 , figure 1 A method for determining a charging voltage threshold provided by an embodiment of the present invention, the method includes:

[0074] Step 101: Charging the battery with a preset current value.

[0075] Step 102: Obtain a target voltage value of the positive electrode voltage corresponding to the inflection point of the negative electrode voltage of the battery.

[0076] In the embodiment of the present invention, th...

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Abstract

The invention discloses a charging voltage threshold determining method and a charging strategy determining method, wherein the charging voltage threshold determining method includes: charging a battery with a preset current value; obtaining the target of the positive electrode voltage corresponding to the inflection point of the negative electrode voltage of the battery Voltage value: determining the target voltage value as the charging voltage threshold when the battery is charged by the preset current value. The method for determining the charging voltage threshold and the method for determining the charging strategy provided by the present invention can quickly and safely determine the charging voltage threshold of the battery when charging with different currents.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a method for determining a charging voltage threshold and a method for determining a charging strategy. Background technique [0002] Rechargeable lithium-ion batteries are the most widely used batteries in electronic devices such as mobile phones and notebook computers. Lithium-ion batteries must not be overcharged or over-discharged during use (it will damage the battery or make it scrapped). Therefore, there are protective components or protective circuits on the battery to prevent expensive battery damage. The charging requirements of lithium-ion batteries are very high, and the accuracy of the termination voltage must be guaranteed to be within ±1%, so it is particularly important to determine the charging threshold of lithium-ion batteries. [0003] In the prior art, low temperature and normal temperature cycle tests are generally used to determine the charging voltage t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/44H02J7/00
CPCH02J7/0077H01M10/44H02J7/0071H01M10/4257Y02E60/10
Inventor 马东辉欧阳林李杨王芳柳志民刘东秦
Owner BEIJING CHJ AUTOMOTIVE TECH CO LTD
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