Lithium battery liquid-cooled thermal management system of stepped-channel based on lightweight

IF 2.7 4区工程技术 Q3 ELECTROCHEMISTRY

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-10-20 DOI:10.1115/1.4063848

Long Zhou, Shengnan Li, Ankur Jain, Guoqiang Chen, Desui Guo, Jincan Kan, Yong Zhao

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引用次数: 0

Abstract

Abstract This study proposes a stepped channel liquid-cooled battery thermal management system based on lightweight. The impact of channel width, cell-to-cell lateral spacing, contact height, and contact angle on the effectiveness of the TCS is investigated through using numerical simulation. The weight sensitivity factor is adopted to evaluate the effect of TCS weight (mTCS) on the maximum temperature (Tmax) of battery pack. Results suggest that the channel width plays the most critical role, followed by cell-to-cell lateral spacing and contact angle, while the contact height has minimal influence. Four parameters that affect the thermal balance performance of battery pack, including the number of channels, and baffles, baffle angle, and coolant inlet velocity, are presented using orthogonal experiment. Results indicate that the number of channels and baffle angle have a significant influence on the thermal balance of battery pack, while thermal performance is largely insensitive to coolant inlet velocity and number of baffles. Based on the analysis stated in this work, an improved design of the TCS is presented that reduces weight by 54.08% while increasing Tmax only by 2.52 K.

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基于轻量化的阶梯通道锂电池液冷热管理系统

摘要提出了一种基于轻量化的阶梯通道液冷电池热管理系统。通过数值模拟研究了通道宽度、单元间横向间距、接触高度和接触角对TCS效能的影响。采用权重敏感因子评价TCS重量对电池组最高温度的影响。研究结果表明，通道宽度的影响最为关键，其次是细胞间横向间距和接触角，而接触高度的影响最小。采用正交试验法研究了影响电池组热平衡性能的4个参数:通道数、挡板数、挡板角度和冷却剂进口速度。结果表明:通道数量和挡板角度对电池组热平衡有显著影响，而冷却剂进口速度和挡板数量对电池组热性能影响不大;在此基础上，提出了一种改进的TCS设计方案，其重量减少了54.08%，而Tmax仅增加了2.52 K。

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来源期刊

Journal of Electrochemical Energy Conversion and Storage Engineering-Mechanics of Materials

CiteScore

4.90

自引率

4.00%

发文量

期刊介绍： The Journal of Electrochemical Energy Conversion and Storage focuses on processes, components, devices and systems that store and convert electrical and chemical energy. This journal publishes peer-reviewed archival scholarly articles, research papers, technical briefs, review articles, perspective articles, and special volumes. Specific areas of interest include electrochemical engineering, electrocatalysis, novel materials, analysis and design of components, devices, and systems, balance of plant, novel numerical and analytical simulations, advanced materials characterization, innovative material synthesis and manufacturing methods, thermal management, reliability, durability, and damage tolerance.