期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 28, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202204327
关键词
Catalytic Conversion; Interlayers; Lithium-Sulfur Batteries
资金
- Natural Science Foundation of China [51872208, 51972239, 51872209, 52072273]
- Zhejiang Provincial Special Support Program for High-level Talents [2019R52042]
We have successfully constructed a new type of intercalation membrane material by covalently grafting organic tris(hydroxypropyl)phosphine (THPP) molecules onto hydroxylated multi-walled carbon nanotubes (CNT-OH) as a functional interlayer for the advanced lithium-sulfur batteries. The as-assembled interlayer has been demonstrated to be responsible for fast conversion kinetics of polysulfides, inhibition of polysulfide shuttle effect, as well as the formation of stable solid electrolyte interphase (SEI) layer.
We have successfully constructed a new type of intercalation membrane material by covalently grafting organic tris(hydroxypropyl)phosphine (THPP) molecules onto hydroxylated multi-walled carbon nanotubes (CNT-OH) as a functional interlayer for the advanced LSBs. The as-assembled interlayer has been demonstrated to be responsible for the fast conversion kinetics of polysulfides, the inhibition of polysulfide shuttle effect, as well as the formation of a stable solid electrolyte interphase(SEI) layer. By means of spectroscopic and electrochemical analysis, we further found THPP plays a key role in accelerating the conversion of polysulfides into low-ordered lithium sulfides and suppressing the loss of polysulfides, thus rendering the as-designed lithium-sulfur battery in this work a high capacity, excellent rate performance and long-term stability. Even at low temperatures, the capacity decay rate was only 0.036 % per cycle for 1700 cycles.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据