Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 14, Issue 9, Pages 11408-11414Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c23529
Keywords
lithium-ion batteries; alloying materials; foil anodes; high-energy batteries; tin anodes
Funding
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering [DE-SC0005397]
- University of Texas at Austin
- Fueling a Sustainable Energy Transition (FSET) grant
Ask authors/readers for more resources
In this work, a new nanostructured composite foil (NCF) alloying anode framework for high-capacity anode materials for lithium-ion batteries is introduced. The NCF materials are manufactured with a simple process, providing hierarchical nanostructures. The NCF system shows promising results in terms of volumetric capacities and energy density, and further development may lead to the production of high-energy battery materials.
In this work, we introduce a new nanostructured composite foil (NCF) alloying anode framework for high-capacity anode materials for lithium-ion batteries. These materials are manufactured with an accumulative roll-bonding process, a simple route for the generation of hierarchical nanostructures. The model Sn/Cu NCF system provides volumetric capacities between 1000 and 1720 mA h cm(-3), equating to a projected 20-50% increase in cell-level volumetric energy density. The initial electrochemical cycle was associated with an efficient formation process (88-92%) that drastically increased transport kinetics, allowing for rapid lithiation (>8 mA cm(-2)) on subsequent cycles. The introduction of a multilayered inactive copper matrix successfully eliminated loss of the active material as a degradation mechanism, while loss of lithium-inventory limited long-term cyclability in lithium-limited environments. Further development of this framework to mitigate loss of lithium inventory may provide a promising route toward the production of high-energy battery materials.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available