Open AccessDevelopment of Li-ion Battery Bulk Force and Expansion Displacement Test-bench
Author(s) -
Jie Qu,
Meihua Huang,
Chao Wang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2066/1/012110
Subject(s) - test bench , battery (electricity) , displacement (psychology) , coupling (piping) , reliability (semiconductor) , voltage , automotive engineering , mechanical engineering , lithium ion battery , engineering , simulation , structural engineering , nuclear engineering , electrical engineering , physics , psychotherapist , psychology , power (physics) , quantum mechanics
In order to test the bulk force and expansion displacement of lithium-ion batteries, it is planned to develop a corresponding test-bench, which is mainly composed of a measurement-control system and a mechanical system. To improve the accuracy of the test data, the coupled thermal-structure simulation of the test system in the mechanical system of the test-bench is carried out to select an optimal mechanical structure of the test system. At the same time, for safe and convenient testing, a monitoring-testing system software was developed to ensure the reliability and safety of data collection. Finally, through the test-bench, the battery expansion displacement-SOC curve and the battery bulk force-SOC curve under different discharge rates were tested, providing a basis for the development of a battery management system coupling temperature-current-voltage-displacement-force.