Three-Dimensional Polymeric-Scaffold-Based Current Collector for a Lithium Metal Anode toward High-Energy-Density Batteries
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Argonne National Laboratory (ANL), Argonne, IL (United States)
Here, the practical applications of high-energy-density rechargeable lithium (Li) metal batteries (LMBs) have been impeded by the intrinsic issues of the Li metal anode (LMA) including high reactivity with electrolyte and dendritic formation. Conventional LMAs, which have the "hostless" feature consisting of a Li layer on a two-dimensional copper (Cu) foil as a current collector, led to additional loss in specific energy density, since Cu is a nonfaradaic heavy metal, bringing formidable areal capacity loss. To address these problems, a heat-treated three-dimensional-structured Cu-coated polyimide (HT-Cu@PI) membrane is designed and fabricated as a current collector. Benefiting from this unique material/structure, it enables not only better electrochemically deposited Li by a uniform/continuous Li-ion transport pathway but also a significant increase in the gravimetric/volumetric energy densities of LMBs by allowing more Li deposition in a fixed weight/volume. Therefore, this new LMA structure will accelerate the practical application of high-energy-density LMBs.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Materials & Manufacturing Technologies Office (AMMTO); USDOE Office of Science (SC), Biological and Environmental Research (BER)
- Grant/Contract Number:
- AC02-06CH11357; AC05-76RL01830
- OSTI ID:
- 2453868
- Alternate ID(s):
- OSTI ID: 2507197
- Journal Information:
- ACS Energy Letters, Journal Name: ACS Energy Letters Journal Issue: 3 Vol. 9; ISSN 2380-8195
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English