用于结构电池层压板的碳纤维增强聚合物双极集流器

IF 5.3 3区 工程技术 Q1 ENGINEERING, MANUFACTURING
Byeong Jun So, Yusu Han, Gilyong Shin, Hyeong Jun Kim, Ju Hwan Lee, Jei Gyeong Jeon, Tae June Kang
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引用次数: 0

摘要

结构电池是一种多功能复合材料,兼具能量存储和机械负载支撑功能。双极集流器可以将电池串联起来,在提高功率和能量密度的同时保持设备的完整性。在这项研究中,双极集流器(CC)是利用真空辅助树脂传递模塑法,在浸渍了环氧树脂的碳纤维织物薄片上制造出来的。在树脂固化过程中施加压力,以改善双极 CC 的机械性能。在 6.0 巴的最佳压力下制成的 CC 具有优异的机械性能,抗拉强度和模量分别为 833 兆帕和 63.6 千兆帕,并且具有 4.9 Ω 厘米的低通面电阻率,有利于堆叠电池之间有效的电子转移。在 2.45 V 的宽电压窗口内,即使在苛刻的酸性和碱性电解质条件下,CC 的电化学稳定性也非常出色。为了证明该装置在功率和能量密度方面的可扩展性,利用 CC 交替堆叠电池,制造出了锌离子结构电池。本文介绍的 CC 可通过减轻设备重量和减小体积来显著提高性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Bipolar Current Collectors of Carbon Fiber Reinforced Polymer for Laminates of Structural Battery

Bipolar Current Collectors of Carbon Fiber Reinforced Polymer for Laminates of Structural Battery

Structural batteries are multi-functional composites that combine the functions of energy storage and mechanical load support. Bipolar current collectors allow batteries to be electrically stacked in series, increasing power and energy density while maintaining device integrity. In this study, bipolar current collectors (CCs) were fabricated in a sheet of carbon fiber fabric impregnated with an epoxy resin using vacuum-assisted resin transfer molding. Pressure was applied during the resin curing process to improve the mechanical properties of the bipolar CCs. The CC produced at an optimum pressure of 6.0 bar showed excellent mechanical properties, with a tensile strength and modulus of 833 MPa and 63.6 GPa, respectively, and exhibited a low through-plane resistivity of 4.9 Ω cm, facilitating efficient electron transfer between the stacked batteries. The electrochemical stability of the CCs was excellent over a wide voltage window of 2.45 V, even under harsh acidic and alkaline electrolyte conditions. To demonstrate the scalability of the device in terms of power and energy density, zinc-ion based structural batteries were fabricated by alternately stacking the batteries using the CC. The implementation of the CC presented here could lead to a significant improvement in the performance by reducing the weight and volume of the device.

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来源期刊
CiteScore
10.30
自引率
9.50%
发文量
65
审稿时长
5.3 months
期刊介绍: Green Technology aspects of precision engineering and manufacturing are becoming ever more important in current and future technologies. New knowledge in this field will aid in the advancement of various technologies that are needed to gain industrial competitiveness. To this end IJPEM - Green Technology aims to disseminate relevant developments and applied research works of high quality to the international community through efficient and rapid publication. IJPEM - Green Technology covers novel research contributions in all aspects of "Green" precision engineering and manufacturing.
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