V O Textile Cathodes with High Capacity and Stability for Flexible Lithium-Ion Batteries.

Clicks: 299
ID: 82731
2020
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Abstract
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. V O 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 V O 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 at a high mass loading of 2.5 mg cm 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 V O HoMSs/metallic-fabric cathode electrode is promising for highly flexible lithium-ion batteries.
Reference Key
zhu2020vadvanced Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Zhu, Yujing;Yang, Mei;Huang, Qiyao;Wang, Dongrui;Yu, Ranbo;Wang, Jiangyan;Zheng, Zijian;Wang, Dan;
Journal advanced materials (deerfield beach, fla)
Year 2020
DOI
10.1002/adma.201906205
URL
Keywords
flexible electronics cathodes lithium-ion batteries hollow multishelled structures metallic textiles

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