Author: Cheung, Yau Kuen
Title: Numerical investigation on the effect of cell spacing on phase change material based battery thermal management system
Advisors: Huang, Xinyan (BEEE)
Degree: M.Eng.
Year: 2022
Subject: Lithium ion batteries
Electric batteries -- Design and construction
Storage batteries -- Design and construction
Hong Kong Polytechnic University -- Dissertations
Department: Department of Building Environment and Energy Engineering
Pages: vi, 71 pages : color illustrations
Language: English
Abstract: Lithium-ion batteries have gained popularity in recent years due to their excellent performance. However, many cases of Li-ion battery have been reported in the past years that reflect the poor thermal stability of the Li-ion battery. Fire safety of Li-ion batteries has been a major concern upon further development and broader application. Even though there was existing research about improvements on different battery thermal management systems (BTMS), little research was found investigating the effect of cell spacing on phase change material (PCM) based BTMS. In this thesis, effect on cell spacing is studied through model simulation. Results suggested that cell spacing of 4 mm with minimal convective heat exchange coefficient of 5 W/m2-K could provide the lowest temperature difference at 2°C while maintaining the maximum temperature at about 41°C under 3C fast discharging, which is satisfactory. Such spacing arrangement also provided a buffer for any unusual heat release rate from the battery in case of any unexpected fault of the battery pack. This cell spacing can also handle any charge rate at or below 3C. This research investigated the effect of different cell spacing in the uniform arrangement in PCM-based BTMS and helped understand the impact on different convective heat exchange coefficients.
Rights: All rights reserved
Access: restricted access

Files in This Item:
File Description SizeFormat 
6543.pdfFor All Users (off-campus access for PolyU Staff & Students only)2.67 MBAdobe PDFView/Open

Copyright Undertaking

As a bona fide Library user, I declare that:

  1. I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
  2. I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
  3. I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.

By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.

Show full item record

Please use this identifier to cite or link to this item: