SIC OpenIR
Robustness-Heterogeneity-Induced Ultrathin 2D Structure in Li Plating for Highly Reversible Li-Metal Batteries
Huang, MS; Yao, ZG; Wu, QP; Zheng, YJ; Liu, JJ; Li, CL
2020-10-14
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Issue41Pages:46132
SubtypeArticle
AbstractAnode interface modification is crucial for the stabilization of Li-metal batteries (LMBs), which have been considered as the most promising system for the electric vehicle market owing to their high energy density (500 W h kg(-1)). However, the biggest challenge for LMBs lies in the preservation of anode reversibility, including plated Li morphology control and dendritic Li inhibition during cycling. Here, we propose a nanostructure modulation strategy of Li grains and plating to activate the anode kinetics of LMBs without the compromise of anode stability. This modulation is triggered by the rapid deposition of ultrathin polydopamine coating on the Cu foil (PDA@Cu), which results in an unusual interlaced growth of vertical or lie-down two-dimensional Li nanoflakes on PDA. The high binding energy (>3 eV) between Li atoms and rich imino/carbonyl groups enables a superior lithiophilicity of PDA to homogenize the Li-ion flowing and Li-mass electroplating with negligible nucleation overpotential. The high Coulombic efficiency (98%) and low voltage hysteresis (similar to 20 mV) are stabilized for at least 300 cycles in the Li-PDA@Cu cell architecture. This PDA@Cu electrode can even tolerate much higher current densities of 5 and 10 mA cm(-2) for 170 and 100 cycles, respectively. The interlaced network of Li nanosheets reinforces the electric contact and therefore charge transfer at the anode-electrolyte interface characterized by small interfacial resistance (<3 Omega cm(2)) and activation energy (0.28 eV). A viewpoint of robustness loss or mechanical heterogeneity in Li plating is discussed to disclose the evolution from column-like Li grains to porous Li sponges and then to compactly stacked Li nanoflakes with porosity shrinkage.
DOI10.1021/acsami.0c13283
WOS KeywordFREE LITHIUM DEPOSITION ; INSPIRED POLYDOPAMINE ; RECHARGEABLE LITHIUM ; PROTECTIVE LAYER ; THIN-FILMS ; NUCLEATION ; ANODE
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27689
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Huang, MS,Yao, ZG,Wu, QP,et al. Robustness-Heterogeneity-Induced Ultrathin 2D Structure in Li Plating for Highly Reversible Li-Metal Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2020(41):46132.
APA Huang, MS,Yao, ZG,Wu, QP,Zheng, YJ,Liu, JJ,&Li, CL.(2020).Robustness-Heterogeneity-Induced Ultrathin 2D Structure in Li Plating for Highly Reversible Li-Metal Batteries.ACS APPLIED MATERIALS & INTERFACES(41),46132.
MLA Huang, MS,et al."Robustness-Heterogeneity-Induced Ultrathin 2D Structure in Li Plating for Highly Reversible Li-Metal Batteries".ACS APPLIED MATERIALS & INTERFACES .41(2020):46132.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Huang, MS]'s Articles
[Yao, ZG]'s Articles
[Wu, QP]'s Articles
Baidu academic
Similar articles in Baidu academic
[Huang, MS]'s Articles
[Yao, ZG]'s Articles
[Wu, QP]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Huang, MS]'s Articles
[Yao, ZG]'s Articles
[Wu, QP]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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