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Title: Promoting Transport Kinetics in Li-Ion Battery with Aligned Porous Electrode Architectures

Abstract

Developing scalable energy storage systems with high energy and power densities is essential to meeting the ever-growing portable electronics and electric vehicle markets, which calls for development of thick electrode designs to improve the active material loading and greatly enhance the overall energy density. However, rate capabilities in lithium-ion batteries usually fall off rapidly with increasing electrode thickness due to hindered ionic transport kinetics, which is especially the issue for conversion-based electroactive materials. To alleviate the transport constrains, rational design of three-dimensional porous electrodes with aligned channels is critically needed. Herein, magnetite (Fe 3O 4) with high theoretical capacity is employed as a model material, and with the assistance of micrometer-sized graphine oxide (GO) sheets, aligned Fe 3O 4/GO (AGF) electrodes with well-defined ionic transport channels are formed through a facile ice-templating method. The as-fabricated AGF electrodes exhibit excellent rate capacity compared with conventional slurry-casted electrodes with an areal capacity of ~3.6 mAh·cm –2 under 10 mA·cm –2. Moreover, clear evidence provided by galvanostatic charge–discharge profiles, cyclic voltammetry, and symmetric cell electrochemical impedance spectroscopy confirms the facile ionic transport kinetics in this proposed design.

Authors:
 [1];  [1];  [2]; ORCiD logo [3];  [1];  [2];  [2]; ORCiD logo [2]; ORCiD logo [4]; ORCiD logo [4]; ORCiD logo [1]
  1. The Univ. of Texas at Austin, Austin, TX (United States)
  2. Stony Brook Univ., Stony Brook, NY (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Stony Brook Univ., Stony Brook, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1580037
Report Number(s):
BNL-212446-2019-JAAM
Journal ID: ISSN 1530-6984
Grant/Contract Number:  
SC0012704; SC0012673
Resource Type:
Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 19; Journal Issue: 11; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Lithium-ion batteries; 3D porous electrode; transport kinetics; low tortuosity; transition metal oxide; magnetite

Citation Formats

Zhang, Xiao, Ju, Zhengyu, Housel, Lisa M., Wang, Lei, Zhu, Yue, Singh, Gurpreet, Sadique, Nahian, Takeuchi, Kenneth J., Takeuchi, Esther S., Marschilok, Amy C., and Yu, Guihua. Promoting Transport Kinetics in Li-Ion Battery with Aligned Porous Electrode Architectures. United States: N. p., 2019. Web. doi:10.1021/acs.nanolett.9b03824.
Zhang, Xiao, Ju, Zhengyu, Housel, Lisa M., Wang, Lei, Zhu, Yue, Singh, Gurpreet, Sadique, Nahian, Takeuchi, Kenneth J., Takeuchi, Esther S., Marschilok, Amy C., & Yu, Guihua. Promoting Transport Kinetics in Li-Ion Battery with Aligned Porous Electrode Architectures. United States. doi:10.1021/acs.nanolett.9b03824.
Zhang, Xiao, Ju, Zhengyu, Housel, Lisa M., Wang, Lei, Zhu, Yue, Singh, Gurpreet, Sadique, Nahian, Takeuchi, Kenneth J., Takeuchi, Esther S., Marschilok, Amy C., and Yu, Guihua. Tue . "Promoting Transport Kinetics in Li-Ion Battery with Aligned Porous Electrode Architectures". United States. doi:10.1021/acs.nanolett.9b03824.
@article{osti_1580037,
title = {Promoting Transport Kinetics in Li-Ion Battery with Aligned Porous Electrode Architectures},
author = {Zhang, Xiao and Ju, Zhengyu and Housel, Lisa M. and Wang, Lei and Zhu, Yue and Singh, Gurpreet and Sadique, Nahian and Takeuchi, Kenneth J. and Takeuchi, Esther S. and Marschilok, Amy C. and Yu, Guihua},
abstractNote = {Developing scalable energy storage systems with high energy and power densities is essential to meeting the ever-growing portable electronics and electric vehicle markets, which calls for development of thick electrode designs to improve the active material loading and greatly enhance the overall energy density. However, rate capabilities in lithium-ion batteries usually fall off rapidly with increasing electrode thickness due to hindered ionic transport kinetics, which is especially the issue for conversion-based electroactive materials. To alleviate the transport constrains, rational design of three-dimensional porous electrodes with aligned channels is critically needed. Herein, magnetite (Fe3O4) with high theoretical capacity is employed as a model material, and with the assistance of micrometer-sized graphine oxide (GO) sheets, aligned Fe3O4/GO (AGF) electrodes with well-defined ionic transport channels are formed through a facile ice-templating method. The as-fabricated AGF electrodes exhibit excellent rate capacity compared with conventional slurry-casted electrodes with an areal capacity of ~3.6 mAh·cm–2 under 10 mA·cm–2. Moreover, clear evidence provided by galvanostatic charge–discharge profiles, cyclic voltammetry, and symmetric cell electrochemical impedance spectroscopy confirms the facile ionic transport kinetics in this proposed design.},
doi = {10.1021/acs.nanolett.9b03824},
journal = {Nano Letters},
number = 11,
volume = 19,
place = {United States},
year = {2019},
month = {10}
}

Journal Article:
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This content will become publicly available on October 29, 2020
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