Battery, electronic device and battery charging method

A charging method and battery technology, which is applied in the charging of electronic equipment and batteries, and in the field of batteries, can solve the problems of lithium analysis, increase of battery risk factor, loss of active materials and available lithium, etc., and achieve the effect of simple operation and improved safety

Active Publication Date: 2022-04-26
CALB CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Lithium-ion batteries have the advantages of high voltage platform, high storage energy density, and high power tolerance. However, with the use of lithium-ion batteries, the number of charge and discharge increases, and the active materials and available lithium in lithium-ion batteries will be lost, resulting in charging. The discharge voltage range is narrowed, and the capacity is limited. If you continue to use the charging strategy of fresh batteries (that is, batteries with fewer charge and discharge times), there may be a risk of lithium precipitation, and eventually the risk factor of the battery will increase.

Method used

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  • Battery, electronic device and battery charging method
  • Battery, electronic device and battery charging method
  • Battery, electronic device and battery charging method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0155]Embodiment: Take the trigger condition including: the current charging times of the battery and the test result of the cyclic voltammetry test as an example.

[0156] 1. The first charge:

[0157] Pre-set the charging cut-off voltage of each charging stage, and the charging rate of each charging stage;

[0158] A cyclic voltammetry test was carried out on the battery, and the test result 1 was obtained.

[0159] At this point, the battery can be charged stepwise based on the preset charging cut-off voltage and charging rate.

[0160] Wherein, this charging process is recorded as charging strategy 1.

[0161] 2. The second charge:

[0162] Step 2.1, carry out cyclic voltammetry test on the battery, and obtain test result 2;

[0163] Wherein, the test parameters of each cyclic voltammetry test are the same.

[0164] Step 2.2, compare test result 1 and test result 2, and judge whether the area difference of the curves in the two test results is greater than the first p...

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PUM

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Abstract

The invention discloses a battery, an electronic device and a battery charging method. When it is determined that the charging strategy needs to be updated, the charging cut-off voltage and the charging rate of each charging stage in the current charging process can be determined, so that the battery can be determined based on the determined charging strategy. Charge the battery to realize the adjustment and update of the charging strategy; in this way, the non-destructive analysis of the battery can be realized with the help of the results of the cyclic voltammetry test, the operation is simple, and the subsequent use of the battery will not be affected , and at the same time, the charging strategy can be adjusted and updated in a timely manner, thereby effectively improving the safety of battery use.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery, an electronic device and a battery charging method. Background technique [0002] Lithium-ion batteries have the advantages of high voltage platform, high storage energy density, and high power tolerance. However, with the use of lithium-ion batteries, the number of charge and discharge increases, and the active materials and available lithium in lithium-ion batteries will be lost, resulting in charging. The discharge voltage range is narrowed, and the capacity is limited. If you continue to use the charging strategy of fresh batteries (that is, batteries with fewer charge and discharge times), there may be a risk of lithium precipitation, and eventually the risk factor of the battery will increase. Contents of the invention [0003] Embodiments of the present invention provide a battery, an electronic device, and a charging method for the battery, which are used t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH02J7/0048H02J7/005H02J7/00712H02J7/007182H02J7/0029H01M10/44Y02E60/10H02J7/0071H02J7/00714H02J7/0047
Inventor 任明溪叶剑波马瑞军王仕伟
Owner CALB CO LTD
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