Chen Qian, Pan Peng, Zhang Mengmeng, Hu Yi, Fu Kun
Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
Engineering Research Center for Eco-Dying & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
ACS Appl Mater Interfaces. 2023 Aug 16;15(32):38507-38521. doi: 10.1021/acsami.3c08335. Epub 2023 Aug 7.
The large amount of waste chemical fiber textiles that exists has posed pressure on the sustainable development of the natural environment and of society. Therefore, it is of great importance to increase the added value of waste chemical fiber textiles and expand their applications in other fields. Herein, acrylic yarn from waste clothing is used as the raw material to construct a three-dimensional (3D) acrylic-based ceramic composite nanofiber solid electrolyte. The electrochemical properties of batteries based on this solid electrolyte are also investigated. We found that the fabricated composite electrolyte has good performance in lithium ion conduction and electrochemical stability because of its 3D acrylic-based ceramic composite fiber framework. The introduction of this composite electrolyte to a lithium symmetric battery enabled the battery to circulate stably for 2350 h at 50 °C without short-circuiting. In addition, all-solid-state batteries using a LiFePO cathode exhibited high reversible capacity. Lastly, a flexible lithium metal pouch battery was able to operate safely and stably under extreme conditions. This work demonstrates a strategy for upcycling waste textiles into ion-conducting polymers for energy storage applications.
大量存在的废旧化学纤维纺织品对自然环境和社会的可持续发展构成了压力。因此，提高废旧化学纤维纺织品的附加值并扩大其在其他领域的应用具有重要意义。在此，以废旧衣物中的腈纶纱线为原料，构建了一种三维（3D）腈纶基陶瓷复合纳米纤维固体电解质。还研究了基于这种固体电解质的电池的电化学性能。我们发现，所制备的复合电解质由于其3D腈纶基陶瓷复合纤维骨架，在锂离子传导和电化学稳定性方面具有良好的性能。将这种复合电解质引入锂对称电池，使得该电池在50℃下能够稳定循环2350小时而不短路。此外，使用LiFePO 正极的全固态电池表现出高可逆容量。最后，一种柔性锂金属软包电池能够在极端条件下安全稳定地运行。这项工作展示了一种将废旧纺织品升级循环为用于储能应用的离子导电聚合物的策略。
