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.)
V2 O5 Textile Cathodes with High Capacity and Stability for Flexible Lithium-Ion Batteries.
Advanced Materials ( IF 27.4 ) Pub Date : 2020-01-10 , DOI: 10.1002/adma.201906205 Yujing Zhu 1, 2, 3 , Mei Yang 2 , Qiyao Huang 3 , Dongrui Wang 4 , Ranbo Yu 1, 5 , Jiangyan Wang 2 , Zijian Zheng 3 , Dan Wang 2
Advanced Materials ( IF 27.4 ) Pub Date : 2020-01-10 , DOI: 10.1002/adma.201906205 Yujing Zhu 1, 2, 3 , Mei Yang 2 , Qiyao Huang 3 , Dongrui Wang 4 , Ranbo Yu 1, 5 , Jiangyan Wang 2 , Zijian Zheng 3 , Dan Wang 2
Affiliation
|
Textile-based energy-storage devices are highly appealing for flexible and wearable electronics. Here, a 3D textile cathode with high loading, which couples hollow multishelled structures (HoMSs) with conductive metallic fabric, is reported for high-performance flexible lithium-ion batteries. V2 O5 HoMSs prepared by sequential templating approach are used as active materials and conductive metallic fabrics are applied as current collectors and flexible substrates. Taking advantage of the desirable structure of V2 O5 HoMSs that effectively buffers the volume expansion and alleviates the stress/strain during repeated Li-insertion/extraction processes, as well as the robust flexible metallic-fabric current collector, the as-prepared fabric devices show excellent electrochemical performance and ultrahigh stability. The capacity retains a high value of 222.4 mA h g-1 at a high mass loading of 2.5 mg cm-2 even after 500 charge/discharge cycles, and no obvious performance degradation is observed after hundreds of cycles of bending and folding. These results indicate that V2 O5 HoMSs/metallic-fabric cathode electrode is promising for highly flexible lithium-ion batteries.
中文翻译：
具有高容量和稳定性的V2 O5纺织阴极，适用于柔性锂离子电池。
基于纺织品的储能设备对于柔性和可穿戴电子产品非常有吸引力。在此，报道了用于高性能柔性锂离子电池的高负载3D纺织阴极，该阴极将空心多壳结构（HoMS）与导电金属织物耦合在一起。通过顺序模板法制备的V2 O5 HoMS被用作活性材料，而导电金属织物被用作集电器和柔性基板。利用可重复缓冲的锂插入/抽出过程中有效缓冲体积膨胀并减轻应力/应变的V2 O5 HoMS的理想结构，以及坚固的柔性金属织物集电器，所制备的织物设备显示出优异的电化学性能和超高稳定性。即使在500个充电/放电循环后，在2.5 mg cm-2的高质量负载下，容量仍保持222.4 mA h g-1的高值，并且在数百次弯曲和折叠循环后未观察到明显的性能下降。这些结果表明，V 2 O 5 HoMS /金属纤维阴极电极有望用于高度柔性的锂离子电池。
更新日期：2020-02-18
中文翻译：
具有高容量和稳定性的V2 O5纺织阴极，适用于柔性锂离子电池。
基于纺织品的储能设备对于柔性和可穿戴电子产品非常有吸引力。在此，报道了用于高性能柔性锂离子电池的高负载3D纺织阴极，该阴极将空心多壳结构（HoMS）与导电金属织物耦合在一起。通过顺序模板法制备的V2 O5 HoMS被用作活性材料，而导电金属织物被用作集电器和柔性基板。利用可重复缓冲的锂插入/抽出过程中有效缓冲体积膨胀并减轻应力/应变的V2 O5 HoMS的理想结构，以及坚固的柔性金属织物集电器，所制备的织物设备显示出优异的电化学性能和超高稳定性。即使在500个充电/放电循环后，在2.5 mg cm-2的高质量负载下，容量仍保持222.4 mA h g-1的高值，并且在数百次弯曲和折叠循环后未观察到明显的性能下降。这些结果表明，V 2 O 5 HoMS /金属纤维阴极电极有望用于高度柔性的锂离子电池。
京公网安备 11010802027423号