Single‐Step Deformation Processing of Ultrathin Lithium Foil and Strip
[1];
- Center for Materials Processing and Tribology Purdue University West Lafayette IN 47906 USA
- M4 Sciences Corporation Lafayette IN 47901 USA
- Material Physical and Chemical Sciences Center Sandia National Laboratories Albuquerque NM 87123 USA
- Department of Mechanical Engineering Osaka University Osaka 565‐0871 Japan
Abstract Next‐generation, high‐efficiency energy storage and conversion systems require development of lithium metal batteries. But the high cost of production and constraints on thickness of lithium (anode) foils continue to limit adoption for integration into battery cell architectures. Here, a novel lithium anode manufacturing solution is demonstrated – single‐step production of ultrathin gauge foil formats directly from solid ingot. Hybrid cutting‐based deformation processes, involving large plastic strains and strain rates, produce foil to sub‐10 µm thickness, with surface quality even superior to present Li anode processing routes. Energy analysis shows the single‐stage processing is ≈50% more efficient than conventional processing by extrusion‐rolling. Through in situ force measurements and high‐speed imaging of the cutting it also characterize – for the first time – the flow stress of Li to strain rates of 800 sec −1 , revealing a power‐law relationship. The results present a paradigm shift in manufacturing and integration of solid lithium anodes for energy applications.
- Research Organization:
- M4 Sciences LLC, Lafayette, IN (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Accelerator R&D and Production (ARDAP)
- Grant/Contract Number:
- NA0003525; SC0023894
- OSTI ID:
- 2274724
- Journal Information:
- Advanced Materials Technologies, Journal Name: Advanced Materials Technologies Journal Issue: 4 Vol. 9; ISSN 2365-709X
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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