电池(电)
材料科学
电化学
电极
复合数
粒径
锂(药物)
锂离子电池
发热
储能
离子
粒子(生态学)
比能量
功率密度
电压
复合材料
化学工程
功率(物理)
热力学
电气工程
化学
内分泌学
工程类
物理化学
有机化学
地质学
物理
海洋学
医学
作者
Ali Hossein Nezhad Shirazi,Mohammad Reza Azadi Kakavand,Timon Rabczuk
出处
期刊:Journal of Nanotechnology in Engineering and Medicine
[ASME International]
日期:2015-11-01
卷期号:6 (4)
被引量:11
摘要
Rechargeable lithium-ion batteries (LIBs) are now playing crucial roles in power supply and energy storage systems. Among all types of rechargeable batteries available nowadays, LIBs are one of the most important ways to store energy because of their high energy density, high operating voltage, and low rate of self-discharge. Nonetheless, the performance of LIBs could be improved by different design parameters, such as the size of solid particles in the battery composite electrodes. Therefore, this study aims to investigate the effect of the composite electrode particles size on the electrochemical and heat generation of an LIB. A Newman's electrochemical pseudo two-dimenisonal model was used to model the LIB cell. Reversible heat produced through electrochemical reactions was calculated as well as irreversible heat originating from internal resistances in the battery cell. Our results show that smaller sizes of electrode solid particles improve the thermal characteristics of the battery, especially in higher charge and discharge currents (C-rate). Furthermore, as the solid particle sizes decrease, the battery capacity increases for various C-rates in charge and discharge cycles.
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