Redox-Active Supramolecular Polymer Binders for Lithium–Sulfur Batteries That Adapt Their Transport Properties in Operando
Journal Article
·
· Chemistry of Materials
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Joint Center for Energy Storage Research
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Energy Technologies Area; Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Joint Center for Energy Storage Research; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Molecular Foundry
π-Stacked perylene bisimide (PBI) molecules are implemented here as highly networked, redox-active supramolecular polymer binders in sulfur cathodes for lightweight and energy-dense Li-S batteries. We show that the in operando reduction and lithiation of these PBI binders sustainably reduces Li-S cell impedance relative to nonredox active conventional polymer binders. This lower impedance enables high-rate cycling in Li-S cells with excellent durability, a critical step toward unlocking the full potential of Li-S batteries for electric vehicles and aviation.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1377549
- Journal Information:
- Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 20 Vol. 28; ISSN 0897-4756
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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