A Facile Potential Hold Method for Fostering an Inorganic Solid-Electrolyte Interphase for Anode-Free Lithium-Metal Batteries
Journal Article
·
· Angewandte Chemie (International Edition)
- University of Texas, Austin, TX (United States); OSTI
- University of Texas, Austin, TX (United States)
Anode-free lithium batteries are regarded as an ultimate form of high-energy-density lithium-ion batteries. Unfortunately, irreversible lithium loss during cycling plays a major role in degrading the overall cell performance in the anode-free configuration. To alleviate the deterioration, building a robust solid-electrolyte interface on an anode current collector is an indispensable requirement. Here, we present a facile in-situ electrochemical method of a potential hold during the first charge to guide more salt-derived (less solvent-derived) decomposition on the anode interface. Here we show the distinctive decomposition potential of lithium salts and ether/carbonate solvents, where the Li-solvation structures with salt contact-ion-pairs preferentially decompose to form LiF-rich and less organic components, leading to enhanced lithium Coulombic efficiency in Li||Cu cells as well as mitigating the capacity fade of Cu||LiFePO4 and Cu||LiNi0.8Mn0.1Co0.1O2 cells.
- Research Organization:
- Univ. of Texas, Austin, TX (United States); University of Texas, Austin, TX (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO)
- Grant/Contract Number:
- EE0007762
- OSTI ID:
- 1976275
- Alternate ID(s):
- OSTI ID: 1844276
OSTI ID: 23128027
OSTI ID: 2217434
- Journal Information:
- Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 13 Vol. 61; ISSN 1433-7851
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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A Facile Potential Hold Method for Fostering an Inorganic Solid‐Electrolyte Interphase for Anode‐Free Lithium‐Metal Batteries
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Tue Feb 08 19:00:00 EST 2022
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OSTI ID:1845159