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Lithium battery fault detection system

A fault detection, lithium battery technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of difficult to intuitively detect the type of lithium battery fault, the complexity of the detection system, etc., to improve the speed, the detection system is simple, Optimizing the effect of the detection system

Inactive Publication Date: 2019-09-27
PUTIAN CITY ZHUHUO INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There will be faults in the production and use of lithium batteries, so it is necessary to detect the faults of lithium batteries. The lithium battery detection systems currently on the market are relatively complicated, and it is difficult to intuitively detect the fault types of lithium batteries.

Method used

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Examples

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Embodiment Construction

[0028] Such as Figure 1-2 As shown, in the first example of the present invention, a lithium battery fault detection system is provided, the system includes:

[0029] The test data collection module 100 is used to take at least three kinds of test lithium batteries of the first type, and respectively collect the first test data G of the test lithium batteries in real time (n,m) ; The first test data includes the open circuit voltage V b(n,m) , capacitor voltage V s(n,m) , battery terminal voltage V (n,m) and working current I (n,m) ; The n is the serial number of the first type, and the n is a positive integer; the m is the serial number of the first test data, and the m is a positive integer;

[0030] A test data processing module 200, configured to, according to the first test data G (n,m) , get the first output data column Y n (m) and the first input matrix Φ (n,m) ;

[0031] The first output data column Y n (m) Satisfied: Y n (m)=(V b(n,1) ,V b(n,2) ,...V b(n...

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Abstract

The invention discloses a lithium battery fault detection system and relates to the technical field of lithium batteries. The system comprises a test data acquisition module, a test data processing module, a test identification parameter solving module, an actual detection data acquisition module, an actual detection data processing module, an actual detection identification parameter solving module and an identification parameter comparison module. On the one hand, the least square method is adopted to identify the system parameters, the physical significance of the system parameters does not need to be obtained, and the first type of the current lithium battery to be detected can be obtained only by solving and comparing the system parameters with various first types of system parameters; on the other hand, the detection system is simple, the lithium battery detection system is optimized, the lithium battery detection speed is increased, and the fault type can be visually detected; the system can be widely applied to battery fault detection, and can also be applied to battery qualification detection.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a fault detection system for lithium batteries. Background technique [0002] Lithium batteries have the advantages of large specific energy, long cycle life, low self-discharge rate, and no pollution, so they are widely used in various fields. At present, battery bicycles, hybrid electric vehicles and all-electric vehicles have put forward new requirements on the power and capacity of batteries, and the popularity of electric vehicles is heavily dependent on the storage capacity of battery energy. Lithium batteries have high Coulombic efficiency during use, and as the price of lithium batteries drops, it will occupy a huge market in the field of electric vehicles. In addition, lithium batteries have been more widely used in various portable devices, such as mobile phones, portable computers, and the like. [0003] There will be faults in the production and use of lit...

Claims

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Application Information

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IPC IPC(8): G01R31/3842G01R31/388G01R31/389G01R31/36
CPCG01R31/36G01R31/3842G01R31/388G01R31/389
Inventor 陈文楷
Owner PUTIAN CITY ZHUHUO INFORMATION TECH CO LTD
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