DataVXACS Energy LettersPaper
journal article·2020-01-10Open access

Integrating Multiredox Centers into One Framework for High-Performance Organic Li-Ion Battery Cathodes

Chunyu Cui, Xiao Ji, Peng-Fei Wang, Gui-Liang Xu, Long Chen, Ji Chen, Hacksung Kim, Yang Ren, Fu Chen, Chongyin Yang, Xiulin Fan, Chao Luo, Khalil Amine, Chunsheng Wang

ACS Energy Letters· Volume 5· Issue 1
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Source abstract

Abstract

Organic cathode materials are promising for developing high-energy and high-power Li-ion batteries (LIBs). However, the energy storage of most organic cathodes relies on the electron transfer of a single type of functional group, leading to either a low redox potential or a low capacity. Here we propose a new strategy for the structure design and performance optimization of organic materials. A new organic cathode, dithianon (DTN), containing three functional groups (−S–, C═O, C≡N) in one framework, is reported. The −S– group increases the redox potential to 3.0 V, while C═O and C≡N groups enable a three Li-ions-involved redox reaction. As a cathode, DTN delivers 270.2 mAh g–1 at 0.5C for 300 cycles. Even at 5C, it still retains 161.5 mAh g–1 after 1000 cycles. The high-capacity, high-power, and stable DTN cathode offers great promise for high-performance and sustainable LIBs.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical and Bimolecular Engineering, University of Maryland, College Park, Maryland 20742, United States

Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States

Center for Catalysis and Surface Science, Northwestern University, Evanston, Illinois 60208, United States

X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States

Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States

Department of Chemistry and Biochemistry, George Mason University, Fairfax, Virginia 22030, United States

Materials Science and Engineering, Stanford University, Stanford, California 94305, United States

Funding

Basic Energy Sciences · Vehicle Technologies Program · U.S. Department of Energy · George Mason University · Argonne National Laboratory · Maryland NanoCenter, NispLab

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