A Quasi-Solid-State Polymer Lithium–Metal Battery with Minimal Excess Lithium, Ultrathin Separator, and High-Mass Loading NMC811 Cathode

Solid-state batteries with lithium metal anodes are considered the next major technology leap with respect to today’s lithium-ion batteries, as they promise a significant increase in energy density. Expectations for solid-state batteries from the automotive and aviation sectors are high, but their i...

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Bibliographic Details
Published in:	ACS applied energy materials Vol. 7; no. 21; pp. 10037 - 10043
Main Authors:	Homann, Gerrit, Wang, Qing, Liu, Sufu, Devincenti, Antoine, Karanth, Pranav, Weijers, Mark, Mulder, Fokko M., Piesins, Matiss, Gouveia, Tom, Ladam, Alix, Fantini, Sebastien, Battaglia, Corsin
Format:	Journal Article
Language:	English
Published:	American Chemical Society 11-11-2024
Subjects:	polymer polymerized ionic liquid solid-state batteries high-mass-loading NMC811 thin lithium infiltration
Online Access:	Get full text
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Summary:	Solid-state batteries with lithium metal anodes are considered the next major technology leap with respect to today’s lithium-ion batteries, as they promise a significant increase in energy density. Expectations for solid-state batteries from the automotive and aviation sectors are high, but their implementation in industrial production remains challenging. Here, we report a solid-state lithium–metal battery enabled by a polymer electrolyte consisting of a poly(DMADAFSI) cationic polymer and LiFSI in Pyr13FSI as plasticizer. The polymer electrolyte is infiltrated and solidified in the pores of a commercial LiNi0.8Mn0.1Co0.1O2 (NMC811) cathode with up to 2.8 mAh cm–2 nominal areal capacity and in the pores of a 25 μm thin commercial polypropylene separator. Cathode and separator are finally laminated into a cell in combination with a commercial 20 μm thin lithium metal anode. Our demonstration of a solid-state polymer battery cycling at full nominal capacity employing exclusively commercially available components available at industrial scale represents a critical step forward toward the commercialization of a competitive all-solid-state battery technology.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2574-0962 2574-0962
DOI:	10.1021/acsaem.4c02099