How to Obtain Reproducible Results for Lithium Sulfur Batteries
Journal Article
·
· Journal of the Electrochemical Society, 160(11):A2288-A2292
The basic requirements for getting reliable Li-S battery data have been discussed in this work. Unlike Li-ion batteries, electrolyte-rich environment significantly affects the cycling stability of Li-S batteries prepared and tested under the same conditions. The reason has been assigned to the different concentrations of polysulfide-containing electrolytes in the cells, which have profound influences on both sulfur cathode and lithium anode. At optimized S/E ratio of 50 g L-1, a good balance among electrolyte viscosity, wetting ability, diffusion rate dissolved polysulfide and nucleation/growth of short-chain Li2S/Li2S2 has been built along with largely reduced contamination on the lithium anode side. Accordingly, good cyclability, high reversible capacity and Coulombic efficiency are achieved in Li-S cell with controlled S/E ratio without any additive. Other factors such as sulfur content in the composite and sulfur loading on the electrode also need careful concern in Li-S system in order to generate reproducible results and gauge the various methods used to improve Li-S battery technology.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1177362
- Report Number(s):
- PNNL-SA-97863; 47414; VT1201000
- Journal Information:
- Journal of the Electrochemical Society, 160(11):A2288-A2292, Journal Name: Journal of the Electrochemical Society, 160(11):A2288-A2292
- Country of Publication:
- United States
- Language:
- English
Similar Records
Formation of Large Polysulfide Complexes during the Lithium-Sulfur Battery Discharge
The synergetic interaction between $\mathrm{LiNO_3}$ and lithium polysulfides for suppressing shuttle effect of lithium-sulfur batteries
Development of Electrolytes under Lean Condition in Lithium–Sulfur Batteries
Journal Article
·
Tue Dec 31 23:00:00 EST 2013
· Physical Review Applied
·
OSTI ID:1159442
The synergetic interaction between $\mathrm{LiNO_3}$ and lithium polysulfides for suppressing shuttle effect of lithium-sulfur batteries
Journal Article
·
Thu Sep 20 20:00:00 EDT 2018
· Energy Storage Materials
·
OSTI ID:1559789
Development of Electrolytes under Lean Condition in Lithium–Sulfur Batteries
Journal Article
·
Fri Apr 26 20:00:00 EDT 2024
· Advanced Materials
·
OSTI ID:2575775