Vehicle lithium iron phosphate power battery capacity attenuation detection system
A technology of lithium iron phosphate and power battery, which is applied in the field of capacity decay detection system of lithium iron phosphate power battery for vehicles
Inactive Publication Date: 2018-05-08
SOUTH CHINA UNIV OF TECH
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[0004] Aiming at the deficiencies in the prior art, the present invention proposes a vehicle lithium iron phosphate power battery capacity attenuation detection system, aiming to solve the problem that the existing battery capacity attenuation detection system can accurately detect the battery capacity attenuation under non-destructive conditions, and realize the Use the actual capacity of lithium iron phosphate power battery for online, accurate and non-destructive detection
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[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, 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 making creative efforts belong to the protection scope of the present invention.
[0037] refer to figure 1 , a lithium iron phosphate power battery capacity attenuation detection system for vehicles, including a lithium battery detection subsystem 1, a detection information analysis subsystem 2, and a battery capacity attenuation self-identification subsystem 3.
[0038] The lithium battery detection subsystem 1 is used to simulate the charging and discharging conditions of the electric vehicle under real conditions, quickly...
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The invention discloses a vehicle lithium iron phosphate power battery capacity attenuation detection system comprising a lithium battery detection subsystem, a detection information analysis subsystem and a battery capacity attenuation self-recognition subsystem. The lithium battery detection subsystem comprises a tomographic image acquisition module, an electrochemical performance detection module and a charge and discharge control module. The battery capacity attenuation self-recognition subsystem comprises a structural morphological analysis operation module and an intelligent detection module. Nondestructive, accurate, rapid and online detection of the vehicle lithium iron phosphate power battery can be realized, and the law between the battery capacity attenuation and the structuralmorphological change of the battery is quantitatively analyzed so that an effective research method can be provided for researching the high-performance vehicle lithium ion battery.
Description
technical field [0001] The invention relates to a battery production inspection system, in particular to a capacity attenuation detection system for a lithium iron phosphate power battery used in vehicles. Background technique [0002] With the increasingly serious environmental pollution and energy crisis, new energy vehicles are gradually replacing traditional fuel vehicles. As the power source of new energy vehicles, power batteries have a direct impact on the performance of electric vehicles and the development of the new energy vehicle industry. In addition, in order to meet the needs of driving in various working conditions for electric vehicles, the output current of the power battery will not only change with changes in driving conditions and driver's intentions. In addition, the power battery will be affected by temperature and vibration, and these factors will directly affect the performance of the power battery. The battery capacity detection system is one of th...
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Inventor 李礼夫谢宗轩郭银磊
Owner SOUTH CHINA UNIV OF TECH