BROWSE

Related Scientist

bielawsk,christopherw's photo.

bielawsk,christopherw
다차원탄소재료연구단
more info

ITEM VIEW & DOWNLOAD

Growing Electrocatalytic Conjugated Microporous Polymers on Self-Standing Carbon Nanotube Films Promotes the Rate Capability of Li–S Batteries

Cited 0 time in webofscience Cited 0 time in scopus
66 Viewed 0 Downloaded
Title
Growing Electrocatalytic Conjugated Microporous Polymers on Self-Standing Carbon Nanotube Films Promotes the Rate Capability of Li–S Batteries
Author(s)
Jia, Yuncan; Chen, Shang; Meng, Xiaodong; Peng, Xiaomeng; Zhou, Ji; Zhang, Jiawen; Hong, Song; Zheng, Lirong; Wang, Zhongli; Christopher W. Bielawski; Geng, Jianxin
Publication Date
2023-07
Journal
Small, v.19, no.47
Publisher
John Wiley and Sons Inc
Abstract
Lithium–sulfur (Li–S) batteries hold great promise for widespread application on account of their high theoretical energy density (2600 Wh kg−1) and the advantages of sulfur. Practical use, however, is impeded by the shuttle effect of polysulfides along with sluggish cathode kinetics. it is reported that such deleterious issues can be overcome by using a composite film (denoted as V-CMP@MWNT) that consists of a conjugated microporous polymer (CMP) embedded with vanadium single-atom catalysts (V SACs) and a network of multi-walled carbon nanotubes (MWNTs). V-CMP@MWNT films are fabricated by first electropolymerizing a bidentate ligand designed to coordinate to V metals on self-standing MWNT films followed by treating the CMP with a solution containing V ions. Li–S cells containing a V-CMP@MWNT film as interlayer exhibit outstanding performance metrics including a high cycling stability (616 mA h g−1 at 0.5 C after 1000 cycles) and rate capability (804 mA h g−1 at 10 C). An extraordinary area-specific capacity of 13.2 mA h cm−2 is also measured at a high sulfur loading of 12.2 mg cm−2. The underlying mechanism that enables the V SACs to promote cathode kinetics and suppress the shuttle effect is elucidated through a series of electrochemical and spectroscopic techniques. © 2023 Wiley-VCH GmbH.
URI
https://pr.ibs.re.kr/handle/8788114/14307
DOI
10.1002/smll.202303919
ISSN
1613-6810
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse