An elastic carbon layer on echeveria-inspired SnO2 anode for long-cycle and high-rate lithium ion batteries

Title
An elastic carbon layer on echeveria-inspired SnO2 anode for long-cycle and high-rate lithium ion batteries
Authors
김아영김정섭차이룰 후다야Dongdong XiaoDongjin ByunLin GuXiao WeiYuan YaoRicheng Yu이중기
Keywords
elastic carbon layer; echeveria-inspired SnO2 anode; lithium ion batteries
Issue Date
2015-11
Publisher
Carbon
Citation
VOL 94, 539-547
Abstract
The commercialization of Sn-based anodes for lithium ion batteries is still hindered due to the inherent volume change leading to a rapid capacity fading during the electrochemical cycle. Inspired by echeveria, a plant that stores sufficient water in its hierarchical leaves to survive in a drought, we report a breakthrough by designing the hierarchical and nanoporous SnO2 electrode encapsulated with ultrathin carbon layer ( 2 nm). As evidently captured by in situ transmission electron microscopy, the conformal carbon coating on the surface of anode may provide an elastic cover that suppresses the cracks due to severe volume change, and increases both electrical and ionic conductivity, allowing the cells to exhibit excellent lithium storage performance with more than 800 cycles even with relatively high-rate of current densities.
URI
http://pubs.kist.re.kr/handle/201004/50001
ISSN
00086223
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

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

BROWSE