Cited 0 time in webofscience Cited 6 time in scopus

Critical role of surface craters for improving the reversibility of Li metal storage in porous carbon frameworks

Title
Critical role of surface craters for improving the reversibility of Li metal storage in porous carbon frameworks
Authors
Choi, Seung HyunHyeon, YuhwanShin, Hong RimEom, Gwang HyeonThi, Thu Pham HienWhang, DongmokKim, So YeunLee, Jong-WonKim, Jung HoPark, Min-Sik
DGIST Authors
Choi, Seung Hyun; Hyeon, Yuhwan; Shin, Hong Rim; Eom, Gwang Hyeon; Thi, Thu Pham Hien; Whang, Dongmok; Kim, So Yeun; Lee, Jong-Won; Kim, Jung Ho; Park, Min-Sik
Issue Date
2021-10
Citation
Nano Energy, 88
Type
Article
Author Keywords
Coulombic efficiencyLithium metal batteriesMass transportMesoporesPorous host materials
ISSN
2211-2855
Abstract
Recently, a certain type of porous carbon framework (PCF) based on zeolitic imidazolate frameworks (ZIFs) has been proposed as a promising anode material for metallic Li storage owing to its controllable pore structure and functionality. With the purpose of improving the Li storage capability and reversibility, meso-scale surface craters (SCs) are strategically introduced on the outermost surface of the PCF via hard templating with colloidal SiO2 nanoparticles. Combined structural and electrochemical investigations demonstrate the critical role of SCs in improving the reversibility of PCF in repeated Li plating and stripping. The SCs on the PCF surface provide facile pathways for the transport of Li ions through the electrode, promote Li plating in the internal pores, and serve as meso-scale sites for metallic Li storage. Furthermore, an SC-integrated PCF anode has shown improved rate capability and cycling performance in a full-cell configured with a commercial cathode, when compared to the conventional PCF anode. This work could offer practical guidelines for the development of robust Li storage materials for advanced Li-metal batteries. © 2021 Elsevier Ltd
URI
http://hdl.handle.net/20.500.11750/15608
DOI
10.1016/j.nanoen.2021.106243
Publisher
Elsevier Ltd
Related Researcher
  • Author Lee, Jong-Won Laboratory for Electrochemical Energy Materials and Interfaces
  • Research Interests 이차전지, 연료전지, 재료전기화학, 나노에너지소재
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringLaboratory for Electrochemical Energy Materials and Interfaces1. Journal Articles


qrcode mendeley

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

BROWSE