Low-temperature and high-rate-charging lithium metal batteries enabled by an electrochemically active monolayer-regulated interface
- Pennsylvania State Univ., University Park, PA (United States); PENNSYLVANIA STATE UNIVERSITY, DEPARTMENT OF MECHANICAL ENGINEERING
- Pennsylvania State Univ., University Park, PA (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States); Ohio Univ., Athens, OH (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
Stable operation of rechargeable lithium (Li)-based batteries at low temperatures is vital for cold-climate applications but is plagued with dendritic Li plating and unstable solid-electrolyte interphase (SEI). Here we report high-performance Li-metal batteries under low-temperature and high-rate-charging conditions. This is realized by utilizing a self-assembled monolayer of electrochemically active molecules on current collectors that regulates the nanostructure and composition of SEI and deposition morphology of Li metal anodes. A multilayer SEI containing a LiF-rich inner phase and amorphous outer layer effectively seals the Li surface in contrast to the conventional impassive SEI at low temperatures. As a result, galvanic Li corrosion and self-discharge were suppressed; stable Li deposition was realized from -60º to 45ºC; and a Li|LiCoO2 cell with a capacity of 2.0 mAh cm-2 displayed a 200-cycle life at -15ºC with a recharge time of 45 minutes.
- Research Organization:
- Pennsylvania State Univ., University Park, PA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
- Grant/Contract Number:
- EE0008198
- OSTI ID:
- 1633448
- Alternate ID(s):
- OSTI ID: 1643792
- Journal Information:
- Nature Energy, Journal Name: Nature Energy Journal Issue: 7 Vol. 5; ISSN 2058-7546
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Low-temperature and high-rate-charging lithium metal batteries enabled by an electrochemically active monolayer-regulated interface
Journal Article
·
Mon Jun 01 00:00:00 EDT 2020
· Nature Energy
·
OSTI ID:1643792
Related Subjects
25 ENERGY STORAGE
36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
42 ENGINEERING
77 NANOSCIENCE AND NANOTECHNOLOGY
Li metal anodes
Lithium metal batteries
Rechargeable lithium (Li)-based batteries
cold-climate applications
electrochemically active monolayer-regulated interface
self-assembled monolayer
solid-electrolyte interphase (SEI)
36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
42 ENGINEERING
77 NANOSCIENCE AND NANOTECHNOLOGY
Li metal anodes
Lithium metal batteries
Rechargeable lithium (Li)-based batteries
cold-climate applications
electrochemically active monolayer-regulated interface
self-assembled monolayer
solid-electrolyte interphase (SEI)