An all-organic symmetric battery based on a triquinoxalinylene derivative with different redox voltage active sites and a large conjugation system

Zhang, Yi; Sun, Zhaopeng; Kong, Xin Ying; Lin, Yilin; Huang, Weiwei

doi:10.1039/d1ta06228j

Cited by 27 publications

(23 citation statements)

References 41 publications

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“…Energy density values are calculated by the integration area under the charge–discharge profile, and power density values are calculated by energy density/discharge time (in hour). e) The comparisons of specific capacity at different current density of TAPT with other symmetric all‐organic lithium‐ion batteries (PZDB, [3b] Li 4 DHTPA, [4c] PNZTA, [5b] Pl1, [24] BPPFs, [25] DB [4e] and 3BQ [26] (Table S8)).…”

Section: Resultsmentioning

confidence: 99%

A Small Molecular Symmetric All‐Organic Lithium‐Ion Battery

Jia

Chen

et al. 2022

Angewandte Chemie

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The structural designability of organic electrode materials makes them attractive for symmetric all-organic batteries (SAOBs) by virtue of different plateaus. However, quite a few works have reported all-organic batteries and it is still challenging to develop a high-performance organic material for SAOBs. Herein, a small molecule, 2,3,7,8tetraaminophenazine-1,4,6,9-tetraone (TAPT), is reported for SAOBs. The rich C=O and C=N groups ensure the high capacity at both plateaus for C=O/CÀ O and C=N/CÀ N redox reactions, which are hence utilized as cathodic and anodic active centers respectively. Moreover, the presence of C=O, C=N and NH 2 groups resulted in plentiful strong intermolecular interactions, leading to layered structures, insolubility and high stability. The rich functional groups also facilitated the chelation of N and O with Li cations and hence benefited the storage of Li cations. The electrochemical performances of TAPT-based SAOBs outperformed all of the previously reported SAOBs.

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Section: Resultsmentioning

confidence: 99%

A Small Molecular Symmetric All‐Organic Lithium‐Ion Battery

Jia

Chen

et al. 2022

Angewandte Chemie

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“…Moreover, PS4 showed better stability compared to other reported GPEs (Table S1). A comparison of the performance enhancement effects with different modification methods on LMBs (Table S2, Figures S11 and S13) reveals that different porous carbons and PS4 could reduce the dissolution rate of the active material; ,,, PS4 could also substantially improve cycling stability.…”

Section: Resultsmentioning

confidence: 99%

Design of Poly(siloxane) Electrolytes with Small Molecule Quinone Cathodes for Long-Cycle Lithium–metal Batteries

Wang

Kong

Wang

et al. 2022

ACS Sustainable Chem. Eng.

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To realize the applicability of organic small molecule quinone as an electrode material in traditional lithium batteries, two problems need to be overcome: the dissolution in electrolytes and the lack of Li. Using solid-state electrolytes instead of the existing liquid electrolytes can solve the above problems. Herein, we design and synthesize a poly(siloxane) electrolyte membrane using the Debus−Radziszewski reaction to get a gel polymer electrolyte (GPE). This GPE delivers an ionic conductivity of 1.8 × 10 −4 S cm −1 , a superior lithium-ion transference number of 0.75, a wide electrochemical stability window of 5.0 V, and a stable lithium deposition/dissolution ability without a significant change of overpotential at 1.0 mA cm −2 and 1.0 mAh cm −2 . Depending on the design, we choose calix[4]quinone (C4Q) as the cathode in batteries,which is a typical n-type carbonyl-based small organic molecule. The lithium−metal batteries (LMBs) assembled with C4Q and the poly(siloxane) electrolytes show a sustained reversible capacity close to 100 mAh g −1 at 5 C and display stability in 1000 long charge−discharge cycles.

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“…may match the redox potential needs in all-organic symmetric batteries. 17,25 Additionally, rationally increasing the loading of redox-active sites (or reducing the redox-inert units) has been proven to be a universal strategy to improve the theoretical capacity for both organic cathode and anode materials. [26][27][28][29] For instance, Chen et al reported a polymer with a high loading of redox-active groups (C=O and C=N), which exhibited an impressive specific capacity of 502.4 mA h g -1 at 0.05 C. 30 Moreover, methods used in organic half batteries, such as manipulating weak intermolecular or intramolecular interactions (π-π interactions, hydrogen bonds, ion-dipole interactions, etc.)…”

Section: Introductionmentioning

confidence: 99%

Molecular structure design of planar zwitterionic polymer electrode materials for all-organic symmetric batteries

Wang

Liu

et al. 2022

Chem. Sci.

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An all-organic symmetric battery based on a triquinoxalinylene derivative with different redox voltage active sites and a large conjugation system

Abstract: The large π-conjugated system and dense active sites in tribenzoquinoxaline-5,10-dione (3BQ) enable it to deliver excellent lithium storage performance.

Cited by 27 publications

References 41 publications

A Small Molecular Symmetric All‐Organic Lithium‐Ion Battery

A Small Molecular Symmetric All‐Organic Lithium‐Ion Battery

Design of Poly(siloxane) Electrolytes with Small Molecule Quinone Cathodes for Long-Cycle Lithium–metal Batteries

Molecular structure design of planar zwitterionic polymer electrode materials for all-organic symmetric batteries

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