Design Optimization of Energy‐Storing Hybrid Supercapacitor Composite for Electric Vehicle's Body Panel
Design Optimization of Energy‐Storing Hybrid Supercapacitor Composite for Electric Vehicle's Body Panel
复制标题
电动汽车车身板储能混合超级电容器复合材料的设计优化
DOI：
10.1002/ente.202200726
复制
发表时间：
2022
影响因子：
3.8
通讯作者：
Thomas, Jayan
中科院分区：
文献类型：
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作者：
Pandey, Deepak;Gurjar, Rajkumar;Kumar, Kowsik Sambath;Henderson, Leaford Nathan;Tresa, Maydenee Maydur;Roberson, Luke;Mohammed Hussain, AbdulJabbar;Dale, Nilesh;Thomas, Jayan
随着电动汽车 (EV) 的不断发展，诸如“能量复合材料”之类的创新技术可以在车身中储存能量，有助于延长每次充电的行驶里程。该复合材料具有作为结构车身面板和电荷存储介质的独特能力，源于其在“电化学区域（EcA）”和“环氧树脂区域（EpA）”之间的独特图案设计。在此，提出了一项设计优化研究，以获得 EcA 与 EpA 之间的平衡比率，以最大限度地提高复合材料的电荷存储能力，同时保持良好的拉伸和弯曲强度。使用 ANSYS 软件进行模拟并使用通用测试机和电化学分析仪进行实验确认，以得出 EcA 和 EpA 之间的最佳比率。进行了单轴拉伸测试和三点弯曲测试来优化拉伸和弯曲强度，而循环伏安法、原电池充放电和电化学阻抗谱则用于通过调节 EcA 与 EpA 的比率来确定各种设计配置的电化学性能。总体而言，每片层实现的最高能量存储为 2531 mWh m−2，最大 EcA 为 81.6%，拉伸强度为 417.73 MPa，弯曲强度为 263.13 MPa。这项研究对于电动汽车和航空航天应用非常有益。
As electric vehicles (EVs) are evolving, innovative technologies like “energized composite” that can store energy in the car's body helps extend its range per charge. The composite's unique ability to function as both structural body panel and charge storage medium stems from its unique pattern design between “electrochemical areas (EcA)” and “epoxy area (EpA)”. Herein, a design optimization study is presented to obtain a balanced ratio between EcA versus EpA to maximize the charge storage ability of the composite while maintaining a decent tensile and bending strength. Simulations using ANSYS software and experimental confirmation using universal testing machines and electrochemical analyzers are used to derive optimum ratios between EcA and EpA. Uniaxial tension test and 3‐point bend test have been performed to optimize the tensile and bend strengths, whereas cyclic voltammetry, galvanic charge–discharge, and electrochemical impedance spectroscopy are used to determine the electrochemical performance of various design configurations by modulating the ratios of EcA versus EpA. Overall, the highest achieved energy storage per lamina is 2531 mWh m−2for a maximum of 81.6% EcA with a tensile strength of 417.73 MPa and bending strength of 263.13 MPa. This study is highly beneficial for EVs and aerospace applications.