Synthesis of Bz-TTFs with polymerization sites and the properties of Li-ion batteries comprising them as active materials

Yoshimura, Aya; Yoshinouchi, Moeko; Hemmi, Keisuke; Aso, Yuto; Utsumi, Ryosuke; Shirahata, Takashi; Yao, Masaru; Misaki, Yohji

doi:10.1039/d3nj00289f

Cited by 3 publications

(1 citation statement)

References 23 publications

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“…In a previous study, we found that TTF-4TPA acts as an active material . CV of TTF alone and reports on molecules containing it suggest that it can act as an active material. − However, the possible function of the TPA moiety as an active substance remains unclear, and its in-cell polymerization has not been reported. Therefore, the charge/discharge curves and cycle performance of the cell with TPA were investigated in a Li system, as shown in Figure .…”

Section: Resultsmentioning

confidence: 93%

Cation-Independent Anion Battery Using Organic Cathodes Utilizing a Triphenylamine Moiety for In-Cell Electropolymerization

Sano,

Yoshimura,

Zhang

et al. 2024

ACS Appl. Polym. Mater.

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Lithium-ion batteries have become the dominant technology for portable electronics and electric vehicles over the past few decades; however, high costs and limited resources have prompted the need for alternative materials. Organic batteries made of abundant and inexpensive materials have the potential to address these challenges. Our previous study focused on tetrathiafulvalene (TTF) bearing triphenylamine (TPA) moieties, TTF-4TPA, wherein TTF exhibits redox activity and TPA shows both polymerization properties and redox activity. Polymerization of active material molecules contributes to long cyclability. TTF-4TPA has been reported to polymerize during the first charge and exhibit high cyclability thereafter. This study investigated the electrochemical properties of a TTF-4TPA-based organic battery. The TTF-4TPA battery was found to exhibit excellent rate performance in a Li-ion system. Moreover, the TTF-4TPA battery was found to be operable even in a Na-ion system.

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Section: Resultsmentioning

confidence: 93%

Cation-Independent Anion Battery Using Organic Cathodes Utilizing a Triphenylamine Moiety for In-Cell Electropolymerization

Sano,

Yoshimura,

Zhang

et al. 2024

ACS Appl. Polym. Mater.

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Tetrathiafulvalene-based covalent organic frameworks as high-voltage organic cathodes for lithium batteries

Valente,

Dantas,

Ferreira

et al. 2024

J. Mater. Chem. A

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The Synthesis of Unsymmetrical Arylated Tetrathiafulvalenes Extended with an Anthraquinoid Spacer via Pd-Catalyzed C–H Arylation

Yoshimura,

Misaki,

Aso

et al. 2024

Synlett

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We synthesized diarylated 10-(1,3-dithiol-2-ylidene)anthracene-9-(10H)-one derivatives, which serve as important precursors of unsymmetrical arylated TTFAQs, via the palladium-catalyzed direct C–H arylation. Unsymmetrical diarylated TTFAQs were synthesized by the Horner–Wadsworth–Emmons reaction using diarylated 10-(1,3-dithiol-2-ylidene)anthracene-9-(10H)-one as the starting materials. Additionally, we have successfully synthesized unsymmetrical tetraarylated TTFAQs by a second palladium-catalyzed C–H arylation of diarylated TTFAQs.

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Synthesis of Bz-TTFs with polymerization sites and the properties of Li-ion batteries comprising them as active materials

Abstract: We have found that benzene-fused TTFs bearing polymerization sites could prolong the cycle life of LIBs via “in-cell polymerization”.

Cited by 3 publications

References 23 publications

Cation-Independent Anion Battery Using Organic Cathodes Utilizing a Triphenylamine Moiety for In-Cell Electropolymerization

Cation-Independent Anion Battery Using Organic Cathodes Utilizing a Triphenylamine Moiety for In-Cell Electropolymerization

Tetrathiafulvalene-based covalent organic frameworks as high-voltage organic cathodes for lithium batteries

The Synthesis of Unsymmetrical Arylated Tetrathiafulvalenes Extended with an Anthraquinoid Spacer via Pd-Catalyzed C–H Arylation

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