Essential Testing and Stepwise Evaluation of Lithium-Ion Battery Packs for Electric Vehicles -
Main Article Content
Abstract
The evaluation of electric vehicle (EV) battery packs through essential testing is critical to prevent safety risks that may endanger technicians, users, and the battery itself, as well as to avoid undetected performance degradation. This paper presents a set of indispensable tests for assessing lithium-ion battery packs before their integration into EV systems. The important tests and their corresponding standards are summarized to stress the need for systematic evaluation and provide clear criteria for interpreting test results. A testing process is also proposed, beginning with the preparation and verification of battery management system data, which includes the acquisition and analysis of key parameters for the initial evaluation of potential faults. Electrical tests are then carried out, including open-circuit voltage measurement, short circuit inspection, insulation resistance testing, withstand voltage testing, and internal resistance measurement, all aimed at verifying the safety and detecting possible defects. This is followed by discharging and charging tests to record characteristic behaviour and to validate capacity, state of charge, and state of health for performance assessment. Finally, the proposed procedure is demonstrated on a 33.6-kWh-100S1P LiFePO4 battery pack, using industrial-grade electrical testing equipment and a 150-kW programmable power supplies, providing a practical reference for test engineers.
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References
International Energy Agency, Global EV Outlook 2023, IEA, Paris, France, 2023. [Online]. Available: https://www.iea.org/reports/global-ev-outlook-2023.
Q. Wang et al. “Thermal runaway caused fire and explosion of lithium-ion battery,” J. Power Sources, vol. 208, pp. 210–224, Jun. 2012.
X. Zhang et al., “A review of lithium-ion battery failure hazards: mechanisms and evaluation methods,” Batteries, vol. 7, no. 11, p. 248, Nov. 2021.
Secondary lithium cells and batteries for use in industrial applications - Safety requirements, IEC 62619, International Electrotechnical Commission, Geneva, Switzerland, 2017.
Batteries for Use In Electric Vehicles, UL 2580:2013, Underwriters Laboratories, Northbrook, IL, USA, 2013.
R. Spotnitz and J. Franklin, “Abuse behavior of high-power, lithium-ion cells,” J. Power Sources, vol. 113, no. 1, pp. 81–100, Apr. 2003.
N. Omar et al., “Lithium iron phosphate based battery - Assessment of the aging parameters and development of cycle life model,” Appl. Energy, vol. 113, pp. 1575–1585, Jan. 2014.
Electrically propelled road vehicles - Safety specifications - Part 1: Rechargeable energy storage system (RESS), ISO 6469-1:2019, International Organization for Standardization, Geneva, Switzerland, 2019.
Safety Requirements for Electric Vehicles, GB 18384
-2020, Standardization Administration of China, Beijing, China, 2020
Insulation coordination for equipment within low-voltage supply systems - Part 1: Principles, requirements and tests, IEC 60664-1:2020, International Electrotechnical Commission, Geneva, Switzerland, 2020.
Electrically propelled road vehicles - Safety speci-
fications - Part 3: Electrical safety, ISO 6469-3:2021, International Organization for Standardization, Geneva, Switzerland, 2019.
Protection against electric shock - Common aspects for installation and equipment, IEC 61140:2016, International Electrotechnical Commission, Geneva, Switzerland, 2016.
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Secondary lithium cells and batteries for portable applications - Part 3: Prismatic and cylindrical lithium secondary cells and batteries made from them, IEC 61960-3:2017, International Electrotechnical Commission, Geneva, Switzerland, 2017.
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Secondary lithium cells and batteries for use in industrial applications, IEC 62620:2014, International Electrotechnical Commission, Geneva, Switzerland, 2014.
Electrically propelled road vehicles - Test speci-
fication for lithium-ion traction battery packs and systems - Part 4: Performance testing, ISO 12405-4:2018, International Organization for Standardization, Geneva, Switzerland, 2018.
Evaluation for Repurposing or Remanufacturing Batteries, UL 1974, Underwriters Laboratories, Northbrook, IL, USA, 2023.
K. Uddin et al., “Characterising lithium-ion battery degradation through the identification and tracking of electrochemical battery model parameters,” J. Power Sources, vol. 327, pp. 245–254, Sep. 2016,
Z.-Z. Yang, “Development of an Active Equalizer for Lithium-Ion Batteries” Electronics, vol. 11, no. 14, p. 2219, 2022.
Road vehicles - Controller area network (CAN) - Part 1: Data link layer and physical signaling, ISO 11898-1:2015, International Organization for Standardization, Geneva, Switzerland, 2015.
N. R. Chowdhury et al., “Influence of state of charge window on the degradation of Tesla lithium-ion battery cells,” J. Energy Storage, vol. 76, Jan. 2024, Art. no. 110001.
Z. Zhang et al., “State-of-charge estimation of lithium-ion battery pack by using an adaptive extended Kalman filter for electric vehicles” J. Energy Storage, vol. 37, May 2021, Art. no. 102457.
H. Wang and H. Qin, “Study on the Integration Strategy of Online EOL Testing of Pure Electric Vehicle Power Battery” Sensors, vol. 23, no. 13, p. 5944, 2023.
M. H. S. M. Haram et al., “Second Life EV Batteries: Technical Evaluation, Design Framework, and Case Analysis” IEEE Access, vol. 11, pp. 138799-138812, 2023.
H. S. Magarand et al., “Electrochemical Impedance Spectroscopy (EIS): Principles, Construction, and Biosensing Applications” Sensors, vol. 21, no. 19, p. 6578, 2023.
M.-G. Limet al., “Evaluation Method of Internal Resistance for Repurposing Using Middle and Large-Sized Batteries” Energies, vol. 16, no. 15, p. 5652, 2023.
Z. Pang et al., “A new method for determining SOH of lithium batteries using the real-part ratio of EIS specific frequency impedance” J. Energy Storage, vol. 72, Nov. 2023, Art. no. 108693.
M. Öztop and A. Şahinaslan, “Control of temperature distribution for Li-ion battery modules via longitudinal fins” J. Energy Storage, vol. 52, Aug. 2022, Art. no. 104760.
