Densifiable Ink Extrusion for Roll-To-Roll Fiber Lithium-Ion Batteries with Ultra-High Linear and Volumetric Energy Densities,Advanced Materials

当前位置： X-MOL 学术 › Adv. Mater. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Densifiable Ink Extrusion for Roll-To-Roll Fiber Lithium-Ion Batteries with Ultra-High Linear and Volumetric Energy Densities
Advanced Materials ( IF 27.4 ) Pub Date : 2023-01-23 , DOI: 10.1002/adma.202211201
Shangwen Ling ₁ , Xiaolong Li ₁ , Tiantian Zhou ₁ , Ruoxin Yuan ₁ , Shuxian Sun ₁ , Hanna He ₁ , Chuhong Zhang ₁

Affiliation

Conventional bulky and rigid planar architecting power systems are difficult to satisfy the growing demand for wearable applications. 1D fiber batteries bearing appealing features of miniaturization, adaptability, and weavability represent a promising solution, yet challenges remain pertaining to energy density and scalability. Herein, an ingenious densifiable functional ink is invented to fabricate scalable, flexible, and high-mass-loading fiber lithium-ion batteries (LIBs) by adopting a fast ink-extrusion technology. In the formulated ink, pyrrole-modified reduced graphene oxide is elaborately introduced and exerts multiple influences; it not only assembles carbon nanotubes and poly(vinylidene fluoride-co-hexafluoropropylene) to compose a sturdy, conductive, and agglomeration-free 3D network that realizes an ultra-high content (75 wt%) of the active materials and endows the electrode excellent flexibility but also serves as a capillary densification inducer, encouraging an extremely large linear mass loading (1.01 mg cm⁻¹ per fiber) and packing density (782.1 mg cm⁻³). As a result, the assembled fiber LIBs deliver impressive linear and volumetric energy densities with superb mechanical compliance, demonstrating the best performance among all the reported extruded fiber batteries. This work highlights a highly effective and facile approach to fabricate high-performance fiber energy storage devices for future practical wearable applications.

中文翻译：

用于具有超高线性和体积能量密度的卷对卷纤维锂离子电池的可致密油墨挤出

传统的笨重且刚性的平面架构电源系统难以满足对可穿戴应用不断增长的需求。一维纤维电池具有小型化、适应性和可编织性等吸引人的特点，是一种很有前途的解决方案，但在能量密度和可扩展性方面仍然存在挑战。在此，发明了一种巧妙的可致密化功能性油墨，采用快速油墨挤出技术制造可扩展、柔性和高载重纤维锂离子电池（LIB）。在配方油墨中，精心引入吡咯改性还原氧化石墨烯，发挥多重作用；它不仅将碳纳米管和聚（偏二氟乙烯-共聚-六氟丙烯）组装成坚固、导电、^-1每根纤维）和堆积密度（782.1 mg cm ^-3）。因此，组装好的纤维锂离子电池具有令人印象深刻的线性和体积能量密度，并具有极好的机械柔顺性，在所有报道的挤压纤维电池中表现出最佳性能。这项工作突出了一种高效简便的方法来制造用于未来实际可穿戴应用的高性能纤维储能设备。

更新日期：2023-01-23

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南