Effect of Battery Pack Stiffness Depending on Battery Cell Types in Cell-to-Pack Technology

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-09-11 DOI:10.1007/s12239-024-00148-x

Jong Wook Lee

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Abstract

High-voltage batteries used in electric vehicles use hundreds or thousands of battery cells. Because a large number of battery cells are used, installing each one into a battery pack causes many difficulties in production. Therefore, traditionally, multiple battery cells are composed of several battery modules and then assembled into a battery pack. However, recently, Cell-to-Pack (CTP) technology that configures battery cells directly into a battery pack is being developed to increase energy density of a battery pack. This is because parts needed for battery modules can be removed, which can have various advantages. Because modules are eliminated in CTP technology, the method of installing battery cells in a battery pack will also be modified and the effect battery cells have on the stiffness of a battery pack will also change. In this study, the differences in stiffness of battery packs based on CTP technology developed for various battery cell types are analyzed. In particular, battery packs with CTP technology are generated based on pouch-type battery cells and prismatic battery cells and how each type of battery cell changes the stiffness of a battery pack is analyzed.

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电池组刚度对电池芯对电池组技术中电池芯类型的影响

电动汽车中使用的高压电池使用成百上千个电池单元。由于使用了大量电池芯，将每个电池芯安装到电池组中会给生产带来很多困难。因此，传统的做法是将多个电池单元组成多个电池模块，然后组装成电池组。不过，最近正在开发将电池单元直接配置到电池组中的电池组对电池组（Cell-to-Pack，CTP）技术，以提高电池组的能量密度。这是因为可以去掉电池模块所需的部件，从而具有各种优势。由于 CTP 技术取消了模块，电池组中电池单元的安装方法也将随之改变，电池单元对电池组刚度的影响也将随之改变。本研究分析了基于 CTP 技术开发的各种电池芯类型的电池组在刚度上的差异。特别是根据袋式电池芯和棱柱电池芯生成采用 CTP 技术的电池组，并分析每种电池芯如何改变电池组的刚度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.