Polysulfides capture-copper additive for long cycle life lithium sulfur batteries
Journal Article
·
· ACS Applied Materials and Interfaces
- Tsinghua Univ., Beijing (China)
- Argonne National Lab. (ANL), Argonne, IL (United States)
Copper powder was introduced into the lithium sulfur battery system to capture intermediate polysulfides and CuxS (x = 1 or 2) species was generated depending on the chain length of polysulfides. This phenomenon was verified by X-ray absorption near edge structure technique. The results indicated that copper can be oxidized to CuS by Li2Sx (x ≥ 6), and a mixture of Cu2S and CuS was obtained when x ranges from 3 to 6. While Cu2S is eventually formed in the presence of Li2S3. After several cycles activation, the polysulfide-shuttle effect and self-discharge phenomenon which hinder the application of lithium sulfur batteries are found nearly eliminated Further experiments demonstrated that in the case of Cu2S generation, a high specific sulfur capacity of 1300 mAh g–1 could be delivered, corresponding to 77.6% sulfur utilization, while the Coulombic efficiency approximates around 100%. As a result, self-discharge experiment further demonstrated that polysulfides almost disappear in the electrolyte, which verified the polysulfide-capture capability of copper.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1364637
- Journal Information:
- ACS Applied Materials and Interfaces, Journal Name: ACS Applied Materials and Interfaces Journal Issue: 44 Vol. 8; ISSN 1944-8244
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Nucleophilic substitution between polysulfides and binders unexpectedly stabilizing lithium sulfur battery
Chromatographic and Spectroscopic Study of the Interaction between Polysulfides and Copper Sulfides
The synergetic interaction between $\mathrm{LiNO_3}$ and lithium polysulfides for suppressing shuttle effect of lithium-sulfur batteries
Journal Article
·
Tue May 09 20:00:00 EDT 2017
· Nano Energy
·
OSTI ID:1417600
Chromatographic and Spectroscopic Study of the Interaction between Polysulfides and Copper Sulfides
Journal Article
·
Sun Dec 14 19:00:00 EST 2025
· ACS Applied Energy Materials
·
OSTI ID:3013663
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