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Title: Capacity Retention for (De)lithiation of Silver Containing α-MnO 2 : Impact of Structural Distortion and Transition Metal Dissolution

Abstract

Crystallite size reduction is a strategy utilized to increase deliverable capacity by decreasing the path length for lithium ion diffusion. However, reduction in crystallite size may also exacerbate unfavorable reactions within a battery limiting cycle life. Here, differences in capacity retention are observed for silver containing α-MnO 2 (silver hollandite, AgHol), with two crystallite sizes. Under 30 mA/g discharge, the smaller crystallite size material (AgHol-S, 7 nm) delivers 266 mAh/g initial capacity with 91% capacity decrease from cycles 2 - 50. In contrast, the larger crystallite size material (AgHol-L, 80 nm) has an initial capacity of 129 mAh/g and only 9% decrease from cycles 2 - 50. A second electrochemical test was conducted using a capacity limit rather than a voltage limit. Under those test conditions, the structural distortion for the two materials observed by X-ray Absorption Spectroscopy (XAS) was similar, yet the terminal voltage decrease was more significant for the small crystallite sized sample. Determination of Mn dissolution revealed Mn solubility 5.4X higher for AgHol-S than AgHol-L with accompanying higher Mn deposition on the negative electrode and increased cell impedance. In conclusion, this study provides quantitative determination of capacity fade as related to structural distortion and transition metal dissolutionmore » as related to crystallite size.« less

Authors:
ORCiD logo [1];  [1];  [1];  [2];  [1];  [1];  [2]; ORCiD logo [1];  [1]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [4]
  1. Stony Brook Univ., NY (United States). Dept. of Chemistry
  2. Stony Brook Univ., NY (United States). Dept. of Materials Science and Chemical Engineering
  3. Stony Brook Univ., NY (United States). Dept. of Chemistry; Stony Brook Univ., NY (United States). Dept. of Materials Science and Chemical Engineering; Brookhaven National Lab. (BNL), Upton, NY (United States). Energy Sciences Directorate
  4. Stony Brook Univ., NY (United States). Dept. of Chemistry; Stony Brook Univ., NY (United States). Dept. of Materials Science and Chemical Engineering
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1475147
Report Number(s):
BNL-209110-2018-JAAM
Journal ID: ISSN 0013-4651
Grant/Contract Number:  
SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 165; Journal Issue: 11; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; alpha manganese oxide; dissolution; structural stability

Citation Formats

Huang, Jianping, Housel, Lisa M., Quilty, Calvin D., Brady, Alexander B., Smith, Paul F., Abraham, Alyson, Dunkin, Mikaela R., Lutz, Diana M., Zhang, Bingjie, Takeuchi, Esther S., Marschilok, Amy C., and Takeuchi, Kenneth J. Capacity Retention for (De)lithiation of Silver Containing α-MnO2 : Impact of Structural Distortion and Transition Metal Dissolution. United States: N. p., 2018. Web. doi:10.1149/2.0371811jes.
Huang, Jianping, Housel, Lisa M., Quilty, Calvin D., Brady, Alexander B., Smith, Paul F., Abraham, Alyson, Dunkin, Mikaela R., Lutz, Diana M., Zhang, Bingjie, Takeuchi, Esther S., Marschilok, Amy C., & Takeuchi, Kenneth J. Capacity Retention for (De)lithiation of Silver Containing α-MnO2 : Impact of Structural Distortion and Transition Metal Dissolution. United States. doi:10.1149/2.0371811jes.
Huang, Jianping, Housel, Lisa M., Quilty, Calvin D., Brady, Alexander B., Smith, Paul F., Abraham, Alyson, Dunkin, Mikaela R., Lutz, Diana M., Zhang, Bingjie, Takeuchi, Esther S., Marschilok, Amy C., and Takeuchi, Kenneth J. Wed . "Capacity Retention for (De)lithiation of Silver Containing α-MnO2 : Impact of Structural Distortion and Transition Metal Dissolution". United States. doi:10.1149/2.0371811jes.
@article{osti_1475147,
title = {Capacity Retention for (De)lithiation of Silver Containing α-MnO2 : Impact of Structural Distortion and Transition Metal Dissolution},
author = {Huang, Jianping and Housel, Lisa M. and Quilty, Calvin D. and Brady, Alexander B. and Smith, Paul F. and Abraham, Alyson and Dunkin, Mikaela R. and Lutz, Diana M. and Zhang, Bingjie and Takeuchi, Esther S. and Marschilok, Amy C. and Takeuchi, Kenneth J.},
abstractNote = {Crystallite size reduction is a strategy utilized to increase deliverable capacity by decreasing the path length for lithium ion diffusion. However, reduction in crystallite size may also exacerbate unfavorable reactions within a battery limiting cycle life. Here, differences in capacity retention are observed for silver containing α-MnO2 (silver hollandite, AgHol), with two crystallite sizes. Under 30 mA/g discharge, the smaller crystallite size material (AgHol-S, 7 nm) delivers 266 mAh/g initial capacity with 91% capacity decrease from cycles 2 - 50. In contrast, the larger crystallite size material (AgHol-L, 80 nm) has an initial capacity of 129 mAh/g and only 9% decrease from cycles 2 - 50. A second electrochemical test was conducted using a capacity limit rather than a voltage limit. Under those test conditions, the structural distortion for the two materials observed by X-ray Absorption Spectroscopy (XAS) was similar, yet the terminal voltage decrease was more significant for the small crystallite sized sample. Determination of Mn dissolution revealed Mn solubility 5.4X higher for AgHol-S than AgHol-L with accompanying higher Mn deposition on the negative electrode and increased cell impedance. In conclusion, this study provides quantitative determination of capacity fade as related to structural distortion and transition metal dissolution as related to crystallite size.},
doi = {10.1149/2.0371811jes},
journal = {Journal of the Electrochemical Society},
number = 11,
volume = 165,
place = {United States},
year = {Wed Sep 05 00:00:00 EDT 2018},
month = {Wed Sep 05 00:00:00 EDT 2018}
}

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