J.X. Zhou
Lithium-ion laptop battery test and energy recycling
Zhou, J.X.; Wang, Q.; Wang, J.
Authors
Dr Qing Wang qing.wang@durham.ac.uk
Associate Professor
Dr Qing Wang qing.wang@durham.ac.uk
Associate Professor
Abstract
Before recycling used lithium-ion laptop batteries, testing and sorting work is needed through charge and discharge tests. For current lithium-ion battery charge and discharge tests, the battery is discharged through a resistor. Thus, the energy in the process is all dissipated. In this paper, an energy-recycling battery test system model is introduced. In the system, a Li-ion 18650 battery can be charged at a constant current mode and a constant voltage mode and discharged at a constant current mode, which are realized by PWM-controlled DC-DC converters. The modes are automatically switched through a controller. In the discharging process, energy is transferred from the under-test battery to a storage battery, which can also serve as a charging source instead of the DC power supply to recycle the energy. The system is simulated using Matlab Simulink. Its test accuracy and energy-transferring efficiency is considerable. According to the simulation results, the system can save about 50% energy overall in one charge and discharge cycle.
Citation
Zhou, J., Wang, Q., & Wang, J. (2017, August). Lithium-ion laptop battery test and energy recycling. Presented at ASME 2017 International Design Engineering Technical Conference and Computers and Information in Engineering Conference, Cleveland, Ohio, USA
Presentation Conference Type | Conference Paper (published) |
---|---|
Conference Name | ASME 2017 International Design Engineering Technical Conference and Computers and Information in Engineering Conference |
Start Date | Aug 6, 2017 |
End Date | Aug 9, 2017 |
Acceptance Date | Mar 24, 2017 |
Online Publication Date | Aug 6, 2017 |
Publication Date | Aug 6, 2017 |
Deposit Date | Apr 18, 2017 |
Publisher | American Society of Mechanical Engineers |
Volume | 4 |
Series Number | 58165 |
Book Title | Proceedings of the ASME 2017 International Design Engineering Technical Conference and Computers and Information in Engineering Conference (IDETC/CIE 2017) : August 6-9, 2017, Cleveland, Ohio, USA. |
DOI | https://doi.org/10.1115/detc2017-67803 |
Public URL | https://durham-repository.worktribe.com/output/1146490 |
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