Polysulfide-Shuttle Control in Lithium-Sulfur Batteries with a Chemically/Electrochemically Compatible NaSICON-Type Solid Electrolyte
Journal Article
·
· Advanced Energy Materials
- University of Texas, Austin, TX (United States); DOE/OSTI
- Ceramatec, Inc., West Valley City, UT (United States)
- University of Texas, Austin, TX (United States)
A NaSICON–type Li+–ion conductive membrane with a formula of Li1+ x Y x Zr2– x (PO4)3 (LYZP) (x = 0–0.15) has been explored as a solid–electrolyte/separator to suppress polysulfide–crossover in lithium–sulfur (Li–S) batteries. Here, the LYZP membrane with a reasonable Li+–ion conductivity shows both favorable chemical compatibility with the lithium polysulfide species and exhibits good electrochemical stability under the operating conditions of the Li–S batteries. Through an integration of the LYZP solid electrolyte with the liquid electrolyte, the hybrid Li–S batteries show greatly enhanced cyclability in contrast to the conventional Li–S batteries with the porous polymer (e.g., Celgard) separator. At a rate of C/5, the hybrid Li ||LYZP|| Li2S6 batteries developed in this study (with a Li–metal anode, a liquid/LYZP hybrid electrolyte, and a dissolved lithium polysulfide cathode) delivers an initial discharge capacity of ≈1000 mA h g–1 (based on the active sulfur material) and retains ≈90% of the initial capacity after 150 cycles with a low capacity fade–rate of <0.07% per cycle.
- Research Organization:
- Ceramatec, Inc., West Valley City, UT (United States)
- Sponsoring Organization:
- USDOE; USDOE Advanced Research Projects Agency - Energy (ARPA-E)
- Grant/Contract Number:
- AR0000377
- OSTI ID:
- 1533066
- Alternate ID(s):
- OSTI ID: 1401474
- Journal Information:
- Advanced Energy Materials, Journal Name: Advanced Energy Materials Journal Issue: 24 Vol. 6; ISSN 1614-6832
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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