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Title: Effect of cathode thickness on the performance of planar Na-NiCl 2 battery

Abstract

Na-beta alumina batteries (NBBs) are one of the most promising technologies for renewable energy storage and grid applications. Commercial NBBs are typically constructed in tubular designs, primarily because of their ease of sealing. However, planar designs are considered superior to tubular designs in terms of power output, cell packing, ease of assembly, and thermal management. In this paper, the performance of planar NBBs has been evaluated at an intermediate temperature. In particular, planar Na-NiCl2 cells with different cathode loadings and thicknesses have been studied at 190oC. The effects of the cathode thickness, charging current, and discharging power output on the cell capacity and resistance have been investigated. More than 60% of theoretical cell capacity could be retained with constant discharging power levels of 600, 525, and 300 mW for 1x, 2x, and 3x cathode loadings, respectively. The cell resistance with 1x and 2x cathode loadings was dominated by ohmic resistance with discharging currents up to 105 mA/cm2, while for 3x cathode loading, it was primarily dominated by ohmic resistance with currents less than 66.7 mA/cm2 and by polarization resistance above 66.7 mA/cm2.

Authors:
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Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Electricity Delivery and Energy Reliability (OE)
OSTI Identifier:
1398196
Report Number(s):
PNNL-SA-125568
Journal ID: ISSN 0378-7753; TE1400000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Power Sources; Journal Volume: 365
Country of Publication:
United States
Language:
English

Citation Formats

Lu, Xiaochuan, Chang, Hee Jung, Bonnett, Jeff F., Canfield, Nathan L., Jung, Keeyoung, Sprenkle, Vincent L., and Li, Guosheng. Effect of cathode thickness on the performance of planar Na-NiCl 2 battery. United States: N. p., 2017. Web. doi:10.1016/j.jpowsour.2017.07.029.
Lu, Xiaochuan, Chang, Hee Jung, Bonnett, Jeff F., Canfield, Nathan L., Jung, Keeyoung, Sprenkle, Vincent L., & Li, Guosheng. Effect of cathode thickness on the performance of planar Na-NiCl 2 battery. United States. doi:10.1016/j.jpowsour.2017.07.029.
Lu, Xiaochuan, Chang, Hee Jung, Bonnett, Jeff F., Canfield, Nathan L., Jung, Keeyoung, Sprenkle, Vincent L., and Li, Guosheng. Sun . "Effect of cathode thickness on the performance of planar Na-NiCl 2 battery". United States. doi:10.1016/j.jpowsour.2017.07.029.
@article{osti_1398196,
title = {Effect of cathode thickness on the performance of planar Na-NiCl 2 battery},
author = {Lu, Xiaochuan and Chang, Hee Jung and Bonnett, Jeff F. and Canfield, Nathan L. and Jung, Keeyoung and Sprenkle, Vincent L. and Li, Guosheng},
abstractNote = {Na-beta alumina batteries (NBBs) are one of the most promising technologies for renewable energy storage and grid applications. Commercial NBBs are typically constructed in tubular designs, primarily because of their ease of sealing. However, planar designs are considered superior to tubular designs in terms of power output, cell packing, ease of assembly, and thermal management. In this paper, the performance of planar NBBs has been evaluated at an intermediate temperature. In particular, planar Na-NiCl2 cells with different cathode loadings and thicknesses have been studied at 190oC. The effects of the cathode thickness, charging current, and discharging power output on the cell capacity and resistance have been investigated. More than 60% of theoretical cell capacity could be retained with constant discharging power levels of 600, 525, and 300 mW for 1x, 2x, and 3x cathode loadings, respectively. The cell resistance with 1x and 2x cathode loadings was dominated by ohmic resistance with discharging currents up to 105 mA/cm2, while for 3x cathode loading, it was primarily dominated by ohmic resistance with currents less than 66.7 mA/cm2 and by polarization resistance above 66.7 mA/cm2.},
doi = {10.1016/j.jpowsour.2017.07.029},
journal = {Journal of Power Sources},
number = ,
volume = 365,
place = {United States},
year = {Sun Oct 01 00:00:00 EDT 2017},
month = {Sun Oct 01 00:00:00 EDT 2017}
}