论文
Designing conductive networks of hybrid carbon enables stable and long-lifespan cotton-fiber-based lithium-sulfur batteries
第一作者: Wu, Y (Wu, Yue); Wang, C (Wang, Cheng); Yang, ZW (Yang, Zewen); Song, DP (Song, Depeng); Ohsaka, T (Ohsaka, Takeo); Matsumoto, F (Matsumoto, Futoshi); Sun, XL (Sun, Xiaolin); Wu, JF (Wu, Jianfei);
联系作者: Wu, Y (Wu, Yue); Wang, C (Wang, Cheng); Yang, ZW (Yang, Zewen); Song, DP (Song, Depeng); Ohsaka, T (Ohsaka, Takeo); Matsumoto, F (Matsumoto, Futoshi); Sun, XL (Sun, Xiaolin); Wu, JF (Wu, Jianfei);
发表年度: 2021
期: 55
卷: 11
页: 34955-34962
摘要: In modern society, flexible rechargeable batteries have become a burgeoning apodictic choice for wearable devices. Conventional lithium-sulfur batteries lack sufficient flexibility because their electrode materials are too rigid to bend. Along with the inherent high theoretical capacity of sulfur, lithium-sulfur batteries have some issues, such as dissolution and shuttle effect of polysulfides, which restricts their efficiency and practicability. Here, a flexible and "dead-weight"-free lithium-sulfur battery substrate with a three-dimensional structure was prepared by a simple strategy. With the cooperative assistance of carbon nanotubes and graphene attached to cotton fibers, the lithium-sulfur battery with 2.0 mg cm(-2) sulfur provided a high initial discharge capacity of 1098.7 mA h g(-1) at 1C, and the decay rate after 300 cycles was only 0.046% per cycle. The initial discharge capacity at 2C was 872.4 mA h g(-1) and the capacity was maintained 734.4 mA h g(-1) after 200 cycles with only a 0.079% per cycle decay rate.
刊物名称: RSC ADVANCES
影响因子: 0
全文链接: https://pubs.rsc.org/en/content/articlelanding/2021/RA/D1RA06568H