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Title: Encapsulation of Metallic Na in an Electrically Conductive Host with Porous Channels as a Highly Stable Na Metal Anode

Abstract

Room-temperature Na ion batteries (NIBs) have attracted great attention because of the widely available, abundant sodium resources and potentially low cost. Currently, the challenge of the NIB development is due primarily to the lack of a high-performance anode, while the Na metal anode holds great promise considering its highest specific capacity of 1165 mA h/g and lowest anodic potential. However, an uneven deposit, relatively infinite volume change, and dendritic growth upon plating/stripping cycles cause a low Coulombic efficiency, poor cycling performance, and severe safety concerns. In this study, a stable Na carbonized wood (Na–wood) composite anode was fabricated via a rapid melt infusion (about 5 s) into channels of carbonized wood by capillary action. The channels function as a high-surface-area, conductive, mechanically stable skeleton, which lowers the effective current density, ensures a uniform Na nucleation, and restricts the volume change over cycles. As a result, the Na–wood composite anode exhibited flat plating/stripping profiles with smaller overpotentials and stable cycling performance over 500 h at 1.0 mA/cm2 in a common carbonate electrolyte system. Finally, in sharp comparison, the planar Na metal electrode showed a much shorter cycle life of 100 h under the same test conditions.

Authors:
 [1];  [2];  [2];  [2];  [2];  [2]; ORCiD logo [2];  [2];  [2]; ORCiD logo [2]
  1. Univ. of Maryland, College Park, MD (United States). Dept. of Materials Science and Engineering, and Dept. of Mechanical Engineering
  2. Univ. of Maryland, College Park, MD (United States). Dept. of Materials Science and Engineering
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Nanostructures for Electrical Energy Storage (NEES)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1388865
Grant/Contract Number:  
SC0001160
Resource Type:
Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 17; Journal Issue: 6; Related Information: NEES partners with University of Maryland (lead); University of California, Irvine; University of Florida; Los Alamos National Laboratory; Sandia National Laboratories; Yale University; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 42 ENGINEERING; 09 BIOMASS FUELS; bio-inspired; energy storage (including batteries and capacitors); defects; charge transport; synthesis (novel materials); synthesis (self-assembly); synthesis (scalable processing); metallic Na anode; conductive host; porous channel; low over-potential; long-term stability

Citation Formats

Luo, Wei, Zhang, Ying, Xu, Shaomao, Dai, Jiaqi, Hitz, Emily, Li, Yiju, Yang, Chunpeng, Chen, Chaoji, Liu, Boyang, and Hu, Liangbing. Encapsulation of Metallic Na in an Electrically Conductive Host with Porous Channels as a Highly Stable Na Metal Anode. United States: N. p., 2017. Web. doi:10.1021/acs.nanolett.7b01138.
Luo, Wei, Zhang, Ying, Xu, Shaomao, Dai, Jiaqi, Hitz, Emily, Li, Yiju, Yang, Chunpeng, Chen, Chaoji, Liu, Boyang, & Hu, Liangbing. Encapsulation of Metallic Na in an Electrically Conductive Host with Porous Channels as a Highly Stable Na Metal Anode. United States. https://doi.org/10.1021/acs.nanolett.7b01138
Luo, Wei, Zhang, Ying, Xu, Shaomao, Dai, Jiaqi, Hitz, Emily, Li, Yiju, Yang, Chunpeng, Chen, Chaoji, Liu, Boyang, and Hu, Liangbing. Tue . "Encapsulation of Metallic Na in an Electrically Conductive Host with Porous Channels as a Highly Stable Na Metal Anode". United States. https://doi.org/10.1021/acs.nanolett.7b01138. https://www.osti.gov/servlets/purl/1388865.
@article{osti_1388865,
title = {Encapsulation of Metallic Na in an Electrically Conductive Host with Porous Channels as a Highly Stable Na Metal Anode},
author = {Luo, Wei and Zhang, Ying and Xu, Shaomao and Dai, Jiaqi and Hitz, Emily and Li, Yiju and Yang, Chunpeng and Chen, Chaoji and Liu, Boyang and Hu, Liangbing},
abstractNote = {Room-temperature Na ion batteries (NIBs) have attracted great attention because of the widely available, abundant sodium resources and potentially low cost. Currently, the challenge of the NIB development is due primarily to the lack of a high-performance anode, while the Na metal anode holds great promise considering its highest specific capacity of 1165 mA h/g and lowest anodic potential. However, an uneven deposit, relatively infinite volume change, and dendritic growth upon plating/stripping cycles cause a low Coulombic efficiency, poor cycling performance, and severe safety concerns. In this study, a stable Na carbonized wood (Na–wood) composite anode was fabricated via a rapid melt infusion (about 5 s) into channels of carbonized wood by capillary action. The channels function as a high-surface-area, conductive, mechanically stable skeleton, which lowers the effective current density, ensures a uniform Na nucleation, and restricts the volume change over cycles. As a result, the Na–wood composite anode exhibited flat plating/stripping profiles with smaller overpotentials and stable cycling performance over 500 h at 1.0 mA/cm2 in a common carbonate electrolyte system. Finally, in sharp comparison, the planar Na metal electrode showed a much shorter cycle life of 100 h under the same test conditions.},
doi = {10.1021/acs.nanolett.7b01138},
journal = {Nano Letters},
number = 6,
volume = 17,
place = {United States},
year = {Tue May 02 00:00:00 EDT 2017},
month = {Tue May 02 00:00:00 EDT 2017}
}

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Cross-linked beta alumina nanowires with compact gel polymer electrolyte coating for ultra-stable sodium metal battery
journal, September 2019


Homogeneous guiding deposition of sodium through main group II metals toward dendrite-free sodium anodes
journal, April 2019