A Nitro-Rich Small-Molecule-Based Organic Cathode Material for Effective Rechargeable Lithium Batteries

Yongqiang Shi; Yilin Lin; Fangyuan Kang; Naoki Aratani; Weiwei Huang; Qichun Zhang

doi:10.1021/acsami.2c18869

journal article·2023-01-11

A Nitro-Rich Small-Molecule-Based Organic Cathode Material for Effective Rechargeable Lithium Batteries

Yongqiang Shi, Yilin Lin, Fangyuan Kang, Naoki Aratani, Weiwei Huang, Qichun Zhang

ACS Applied Materials & Interfaces· Volume 15· Issue 1

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Abstract

Organic cathode materials have attracted extensive research interest for rechargeable lithium-ion batteries (LIBs) because of their diverse structures and tunable properties. However, the preparation of organic cathode materials with high capacities, long cycling life, and high energy densities still remains a big challenge. To address these issues, we designed and synthesized a novel multinitro-decorated organic small molecule, N4,N4′′-bis(2,4-dinitrophenyl)-5′-(4-((2,4-dinitrophenyl)amino)phenyl)-[1,1′:3′,1′′-terphenyl]-4,4′′-diamine (TAPB-6NO2), where the unique electronic character of nitro group should enable TAPB-6NO2 to be a promising cathode candidate for LIBs. We found that the introduction of multiple nitro groups could efficiently reduce the solubility of TAPB-6NO2 in organic electrolytes, resulting in a high specific capacity of around 180 mAh g–1 and stable cycling with a capacity retention of 91% after 1100 cycles at 1000 mA g–1. This work suggests that attaching multiple nitro groups on a small molecule is an effective approach to construct high-performance organic cathode materials for stable and sustainable rechargeable 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 Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR999077, People’s Republic of China

Key Laboratory of Functional Molecular Solids, Ministry of Education, and School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui241002, People’s Republic of China

Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, Hebei066004, People’s Republic of China

Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, Nara630-0192, Japan

Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, Hong Kong SAR999077, People’s Republic of China

Funding

State Key Laboratory of Supramolecular Structure and Materials · Japan Society for the Promotion of Science · City University of Hong Kong · National Natural Science Foundation of China · Institute for Advanced Study Of City University of Hong Kong

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