Solvent-free synthesis of a naphthoquinone-based bipolar organic cathode towards practical durable lithium organic batteries

Xiong, Jiakui; Yan, Xiaorong; Yu, Haiping; Wu, Chuanguang; Zhao, Guoqing; Zhang, Jianze; Dai, Yujie; Wang, Xinyu; Gao, Jiefeng; Pu, Xiong; Hu, Mingjun; Liu, Jingru; Yang, Jun

doi:10.1039/d3ta00528c

Cited by 9 publications

(7 citation statements)

References 47 publications

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“…As shown in Figure a, PDABQ shows a stretching vibration of the −NH– group at 3453 and 723 cm –1 , and the stretching vibration of C–Cl (747 cm –1 ) in the TCBQ and the stretching vibration of −NH 2 (3374 cm –1 ) in the TABQ almost disappear completely after polymerization. − Remarkably, a significant deviation is observed in PDABQ, as the stretching vibration of CO notably shifted to 1627 cm –1 , which is attributed to the elongation of CO due to the formation of hydrogen bonds between the −NH– and CO groups. Consequently, the red shift in the vibrational frequency of CO is observed. , Meanwhile, the XPS spectrum (Figure S2) shows that the obtained polymer contains C, N, and O and trace amounts of Cl elements without any other impurities. The peak at 176 ppm in the solid-state 13 C NMR spectrum (Figure b) and the peak at 530.38 eV in the O 1s XPS spectrum (Figure d) are assigned to the functional CO groups in PDABQ, suggesting that the active sites (CO) are introduced in PDABQ successfully. , The peak observed at 398.17 eV corresponds to the C–N in the N 1s spectrum (Figure S3), which further certifies the structure of PDABQ.…”

Section: Resultsmentioning

confidence: 97%

“…Consequently, the red shift in the vibrational frequency of C�O is observed. 23,24 Meanwhile, the XPS spectrum (Figure S2) shows that the obtained polymer contains C, N, and O and trace amounts of Cl elements without any other impurities. The peak at 176 ppm in the solid-state 13 C NMR spectrum (Figure 2b) and the peak at 530.38 eV in the O 1s XPS spectrum (Figure 2d) are assigned to the functional C�O groups in PDABQ, suggesting that the active sites (C�O) are introduced in PDABQ successfully.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Imino-Linked Carbonyl-Enriched Polymer as a High-Performance Cathode Material for Lithium-Ion Batteries

Li,

Yao,

Guan

et al. 2024

ACS Sustainable Chem. Eng.

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Organic electrode materials show promise for application in rechargeable batteries due to their potential for high capacity, tunable structures, flexibility, and sustainability. However, the serious dissolution problem in organic electrolytes and the inferior intrinsic conductivity of organic electrode materials limit their performance and practical applications in LIBs. Herein, a novel carbonyl-enriched polymer (PDABQ) was designed and synthesized from tetraaminobenzoquinone (TABQ) and chloranil (TCBQ). The integration of low molecular weight −NH− with quinone units can effectively improve the theoretical specific capacity and extend the conjugated structure. Meanwhile, the hydrogen bonds between C�O and −NH− and intermolecular π−π interactions further enhance the solvent resistance and the charge transfer rate of the PDABQ cathode. Therefore, the PDABQ cathode shows long-term cycling stability (88.8% capacity retention after 1000 cycles at 2 A g −1 ), high reversible specific capacity (234.2 mA h g −1 at 0.1 A g −1 ), and outstanding rate performance (161.2 mA h g −1 at 2 A g −1 , 75.9% capacity retention versus 0.1 A g −1 ). This work offers an effective and convenient molecular structure design strategy for highperformance organic carbonyl polymer cathode materials.

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Section: Resultsmentioning

confidence: 97%

Section: ■ Results and Discussionmentioning

confidence: 99%

Imino-Linked Carbonyl-Enriched Polymer as a High-Performance Cathode Material for Lithium-Ion Batteries

Li,

Yao,

Guan

et al. 2024

ACS Sustainable Chem. Eng.

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“…5c). 28 solved the dissolution problem of PTCDA and improved the cycling stability of lithium ion batteries. The resulting composite material (PTTH-3) showed a high specic capacity of 170 mA h g −1 (0.1 A g −1 ) (Fig.…”

Section: Solutionmentioning

confidence: 99%

Solvent-free synthesis of organic electrodes for green sustainable energy storage

Yu,

Xiong,

et al. 2024

J. Mater. Chem. A

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“…This observation suggested the occurrence of both faradaic and non-faradaic reactions during the Li + ion and Na + ion storage processes. [17] More deeply, the equation (1) was commonly used for the analysis of CV data to describe the intrinsic relationship between the peak current (i) and scan rate (v).…”

Section: Determination Of the Diffusion Coefficient Of Lithium/ Sodiu...mentioning

confidence: 99%

Ultra‐Thin Hydrogen‐Organic‐Framework (HOF) Nanosheets for Ultra‐Stable Alkali Ions Battery Storage

Tang,

Yang,

Peng

et al. 2023

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Organic frameworks‐based batteries with excellent physicochemical stability and long‐term high capacity will definitely reduce the cost, carbon emissions, and metal consumption and contamination. Here, an ultra‐stable and ultra‐thin perylene‐dicyandiamide‐based hydrogen organic framework (HOF) nanosheet (P‐DCD) of ≈3.5 nm in thickness is developed. When applied in the cathode, the P‐DCD exhibits exceptional long‐term capacity retention for alkali‐ion batteries (AIBs). Strikingly, for lithium‐ion batteries (LIBs), at current of 2 A g−1, the large reversible capacity of 108 mA h g−1 shows no attenuation within 5 000 cycles. For sodium‐ion batteries (SIBs), the related capacity retains 91.7% within 10 000 cycles compared to the initial state, significantly much more stable than conventional organic materials reported previously. Mechanism studies through ex situ and in situ experiments and theoretical density functional theory (DFT) calculations reveal that the impressive long‐term performance retention originates from the large electron delocalization, fast ion diffusion, and physicochemical stability within the ultra‐thin 2D P‐DCD, featuring π‐π and hydrogen bonding stacking, nitrogen‐rich units, and low impedance. The advantageous features demonstrate that rationally designed stable and effective organic frameworks pave the way to utilizing complete organic materials for developing next‐generation low‐cost and highly stable energy storage batteries.

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Solvent-free synthesis of a naphthoquinone-based bipolar organic cathode towards practical durable lithium organic batteries

Abstract: We prepare a bipolar naphthoquinone-based small molecule DNQPA in high yield and purity by a solvent-free method, which shows exceptional cycling stability and excellent specific capacity as a cathode material when compounded with graphene.

Cited by 9 publications

References 47 publications

Imino-Linked Carbonyl-Enriched Polymer as a High-Performance Cathode Material for Lithium-Ion Batteries

Imino-Linked Carbonyl-Enriched Polymer as a High-Performance Cathode Material for Lithium-Ion Batteries

Solvent-free synthesis of organic electrodes for green sustainable energy storage

Ultra‐Thin Hydrogen‐Organic‐Framework (HOF) Nanosheets for Ultra‐Stable Alkali Ions Battery Storage

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