喷墨打印成形固体氧化物燃料电池复合陶瓷阴极及其电化学性能研究

doi:10.3901/JME.2024.17.321

机械工程学报 ›› 2024, Vol. 60 ›› Issue (17): 321-329.doi: 10.3901/JME.2024.17.321

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喷墨打印成形固体氧化物燃料电池复合陶瓷阴极及其电化学性能研究

王煊^1,2, 熊鼎宇^1,2, 屈飘^1,2, 刘长勇^1,2, 陈张伟^1,2

1. 深圳大学增材制造研究所深圳 518060;
2. 深圳大学广东省电磁控制与智能机器人重点实验室深圳 518060

收稿日期:2023-09-19 修回日期:2024-02-18 出版日期:2024-09-05 发布日期:2024-10-21
作者简介:王煊，男，1999年出生。主要研究方向为陶瓷增材制造。E-mail:2560017500@qq.com
陈张伟(通信作者)，男，1985年出生，博士，教授。主要研究方向为增材制造。E-mail:chen@szu.edu.cn
基金资助:
国家自然科学基金面上(51975384)、广东省高校重点领域专项(2022ZDZX3017)、广东省特支计划(2021TQ05Z151)、深圳市稳定支持计划(20200731211324001)、深圳市国际合作(GJHZ20210705141803011)和机械制造系统工程国家重点实验室开放课题(SKLMS2023008)资助项目。

Inkjet Printing of Composite Ceramic Cathode for Improved Electrochemical Performance of Solid Oxide Fuel Cells

WANG Xuan^1,2, XIONG Dingyu^1,2, QU Piao^1,2, LIU Changyong^1,2, CHEN Zhangwei^1,2

1. Additive Manufacturing Institute, Shenzhen University, Shenzhen 518060;
2. Guangdong Key Lab of Electromagnetic Control and Intelligent Robotics, Shenzhen University, Shenzhen 518060

Received:2023-09-19 Revised:2024-02-18 Online:2024-09-05 Published:2024-10-21

摘要/Abstract

摘要： 本研究制备了一种镧锶钴铁-钨酸钇(LSCF-YWO)复合阴极陶瓷墨水，并对其各项性能进行了表征和优化，从而获得优异的流变特性和喷墨打印性能。通过对喷墨打印技术工艺参数的研究，成功打印制造获得了表面形貌优异的LSCF-YWO阴极层。通过平衡阴极层和GDC层之间的热膨胀系数不均矛盾，有效解决了固体氧化物燃料电池(Solid oxide fuel cell, SOFC)运行过程中阴极开裂和分层的难题，使SOFC的电化学性能得到大幅提升。基于热重分析制订阴极层烧结工艺，可进一步避免烧结后阴极表面裂纹的产生，从而制造出表面形貌优异的阴极。增加阴极层的打印厚度可进一步提高SOFC的功率密度。在打印层数为30层，即层厚达到15.32 μm时，SOFC的最大功率密度达到1149.8 mW·cm^-2。本研究对喷墨打印制造高性能SOFC电极组件具有一定指导意义。

关键词: 喷墨打印, 陶瓷墨水, 热膨胀, 电化学性能, 烧结工艺

Abstract: In this study, high-performance composite cathode ceramic ink made of lanthanum strontium cobalt iron and yttrium tungstate (LSCF-YWO) is created. Using inkjet printing technique with optimized printing parameter, cathode layers with outstanding surface morphology are successfully manufactured. At the same time, the issue of cathode cracking and delamination is resolved, and the peak power density is raised by 2.4 times in comparison to the pure LSCF cathode by balancing the thermal expansion between the cathode and the electrolyte layer. Additionally, a sintering scheme of the cathode layers based on the thermogravimetric curve is developed to prevent the emergence of surface fractures during cathode sintering. The SOFC's power density can be further improved by thickening the cathode layer. At 30 printing layers (15.32 μm), the SOFC's peak power density is 1149.8 mW·cm^-2. These results provide an essential experimental guidance for improving the electrochemical performance of SOFCs based on inkjet printing.

Key words: inkjet printing, ceramic ink, thermal expansion, electrochemical performance, sintering

中图分类号:

TM911

王煊, 熊鼎宇, 屈飘, 刘长勇, 陈张伟. 喷墨打印成形固体氧化物燃料电池复合陶瓷阴极及其电化学性能研究[J]. 机械工程学报, 2024, 60(17): 321-329.

WANG Xuan, XIONG Dingyu, QU Piao, LIU Changyong, CHEN Zhangwei. Inkjet Printing of Composite Ceramic Cathode for Improved Electrochemical Performance of Solid Oxide Fuel Cells[J]. Journal of Mechanical Engineering, 2024, 60(17): 321-329.

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喷墨打印成形固体氧化物燃料电池复合陶瓷阴极及其电化学性能研究

Inkjet Printing of Composite Ceramic Cathode for Improved Electrochemical Performance of Solid Oxide Fuel Cells

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