skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Self-healing Li-Bi liquid metal battery for grid-scale energy storage

Abstract

In an assessment of the performance of a Li vertical bar LiCl-LiF vertical bar Bi liquid metal battery, increasing the current density from 200 to 1250 mA cm(-2) results in a less than 30% loss in specific discharge capacity at 550 degrees C. The charge and discharge voltage profiles exhibit two distinct regions: one corresponding to a Li-Bi liquid alloy and one corresponding to the two-phase mixture of Li-Bi liquid alloy and the intermetallic solid compound, Li3Bi. Full cell prototypes of 0.1 Ah nameplate capacity have been assembled and cycled at 3 C rate for over a 1000 cycles with only 0.004% capacity fade per cycle. This is tantamount to retention of over 85% of original capacity after 10 years of daily cycling. With minimal changes in design, cells of 44.8 Ah and 134 Ah capacity have been fabricated and cycled at C/3 rate. After a hundred cycles and over a month of testing, no capacity fade is observed. The coulombic efficiency of 99% and energy efficiency of 70% validate the ease of scalability of this battery chemistry. Post mortem cross sections of the cells in various states of charge demonstrate the total reversibility of the Li3Bi solid phase formedmore » at high degrees of lithiation. (C) 2014 Elsevier B.V. All rights reserved.« less

Authors:
; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1211074
DOE Contract Number:  
DE-AR0000047
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Power Sources; Journal Volume: 275
Country of Publication:
United States
Language:
English

Citation Formats

Ning, XH, Phadke, S, Chung, B, Yin, HY, Burke, P, and Sadoway, DR. Self-healing Li-Bi liquid metal battery for grid-scale energy storage. United States: N. p., 2015. Web. doi:10.1016/j.jpowsour.2014.10.173.
Ning, XH, Phadke, S, Chung, B, Yin, HY, Burke, P, & Sadoway, DR. Self-healing Li-Bi liquid metal battery for grid-scale energy storage. United States. doi:10.1016/j.jpowsour.2014.10.173.
Ning, XH, Phadke, S, Chung, B, Yin, HY, Burke, P, and Sadoway, DR. Sun . "Self-healing Li-Bi liquid metal battery for grid-scale energy storage". United States. doi:10.1016/j.jpowsour.2014.10.173.
@article{osti_1211074,
title = {Self-healing Li-Bi liquid metal battery for grid-scale energy storage},
author = {Ning, XH and Phadke, S and Chung, B and Yin, HY and Burke, P and Sadoway, DR},
abstractNote = {In an assessment of the performance of a Li vertical bar LiCl-LiF vertical bar Bi liquid metal battery, increasing the current density from 200 to 1250 mA cm(-2) results in a less than 30% loss in specific discharge capacity at 550 degrees C. The charge and discharge voltage profiles exhibit two distinct regions: one corresponding to a Li-Bi liquid alloy and one corresponding to the two-phase mixture of Li-Bi liquid alloy and the intermetallic solid compound, Li3Bi. Full cell prototypes of 0.1 Ah nameplate capacity have been assembled and cycled at 3 C rate for over a 1000 cycles with only 0.004% capacity fade per cycle. This is tantamount to retention of over 85% of original capacity after 10 years of daily cycling. With minimal changes in design, cells of 44.8 Ah and 134 Ah capacity have been fabricated and cycled at C/3 rate. After a hundred cycles and over a month of testing, no capacity fade is observed. The coulombic efficiency of 99% and energy efficiency of 70% validate the ease of scalability of this battery chemistry. Post mortem cross sections of the cells in various states of charge demonstrate the total reversibility of the Li3Bi solid phase formed at high degrees of lithiation. (C) 2014 Elsevier B.V. All rights reserved.},
doi = {10.1016/j.jpowsour.2014.10.173},
journal = {Journal of Power Sources},
number = ,
volume = 275,
place = {United States},
year = {Sun Feb 01 00:00:00 EST 2015},
month = {Sun Feb 01 00:00:00 EST 2015}
}