Redox-Active Supramolecular Polymer Binders for Lithium–Sulfur Batteries That Adapt Their Transport Properties in Operando

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 ce...

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Published in:Chemistry of materials 2016-10, Vol.28 (20), p.7414-7421
Main Authors: Frischmann, Peter D, Hwa, Yoon, Cairns, Elton J, Helms, Brett A
Format: Article
Language:English
Subjects:
ENERGY STORAGE
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
MATERIALS SCIENCE
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cited_by cdi_FETCH-LOGICAL-a369t-ec8a1e684c1512ee395b6794937653db77e5bc6e3fae5f4f2e4322e402ca73753
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description 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.
doi_str_mv 10.1021/acs.chemmater.6b03013
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subjects ENERGY STORAGE
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
MATERIALS SCIENCE
title Redox-Active Supramolecular Polymer Binders for Lithium–Sulfur Batteries That Adapt Their Transport Properties in Operando
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