Conjugated Porous Polydiaminophenylsulfone–Triazine Polymer—A High-Performance Anode for Li-Ion Batteries

Ma, Quanwei; Zheng, Jun; Kang, Hongwei; Zhang, Longhai; Zhang, Qianyu; Li, Hao; Wang, Rui; Zhou, Tengfei; Chen, Qi; Liu, Axue; Li, Hong-Bao; Zhang, Chaofeng

doi:10.1021/acsami.1c14973

Cited by 39 publications

(24 citation statements)

References 58 publications

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“…The ever-growing demand for wearable electronic devices has motivated the research for flexible energy storage systems with safety, [1,2] low cost, [3,4] good wearability, [5,6] and high energy density. [7,8] Additionally, aqueous rechargeable zinc ion batteries (AZIBs) have been regarded as safe energy storage systems due to their nonflammable property and excellent ion conductivity.…”

Section: Introductionmentioning

confidence: 99%

Application of cellulose‐based hydrogel electrolytes in flexible batteries

Liu

Wang

et al. 2022

Carbon Neutralization

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Flexible energy storage devices have the advantages of portability and safety, and have great potential for developing electronic materials in the future. In flexible batteries, the electrolyte presents an essential role in the electrochemical performance and safety of the batteries. Hydrogel electrolyte materials are considered to be one of the ideal electrolyte materials due to their environmental friendliness, high safety, maneuverability, and innocuity. However, ordinary hydrogels often suffer some defects, such as insufficient ductility and poor water retention. Currently, many researchers report cellulose materials as reinforcing agents to improve the performance of hydrogels. In this paper, we review the recent application of cellulose in hydrogel‐based materials for energy storage technology and summarize the functions and properties of cellulose. In addition, we analyze the shortcomings of cellulose used in hydrogels and briefly describe the prospects of cellulose materials, hoping to contribute to the research in this field.

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Section: Introductionmentioning

confidence: 99%

Application of cellulose‐based hydrogel electrolytes in flexible batteries

Liu

Wang

et al. 2022

Carbon Neutralization

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“…In the first cycle, both materials showed irreversible peaks in cathodic scan direction at 1.66 and 0.64 V vs. Li/Li + , the latter related to the formation of a solidelectrolyte interphase. 94 The charge/discharge curves from constant current cycling measurements confirm that the Li-ion intercalation occurs between 0.05-1.2 V and furnishes specific capacities of 309 mAh g −1 for the second cycle for both materials (Figure 7e). Cycling at 100 mA g −1 for 100 cycles interestingly showed a higher cycling stability for the DBP-Ph-TFP POP than for the PhDBP-TFP COF with a capacity retention of 80% vs. 62%, respectively (Figure 7f).…”

Section: Energy Storage Propertiesmentioning

confidence: 64%

Antiaromatic Covalent Organic Frameworks Based on Dibenzopentalenes

Sprachmann

Wachsmuth

Bhosale

et al. 2022

Preprint

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Despite their inherent instability, 4n pi-systems have recently received significant attention due to their unique optical and electronic properties. In dibenzopentalene, benzanellation stabilizes the highly antiaromatic pentalene core, without compromising its amphoteric redox behavior or small HOMO–LUMO energy gap. However, incorporating such molecules in organic devices as discrete small molecules or ill-defined amorphous polymers can limit the performance (e.g. due to solubility in the electrolyte solution or low internal surface area). Covalent organic frameworks, on the contrary, are highly ordered, porous, and crystalline materials that can provide a platform to align molecules with specific properties in a well-defined, ordered environment. We synthesized the first antiaromatic framework materials and obtained a series of three highly crystalline and porous covalent organic frameworks based on dibenzopentalene. Potential applications of such antiaromatic bulk materials were explored: COF films show a conductivity of 4 × 10^(−8) S cm^(−1) upon doping and exhibit photoconductivity upon irradiation with visible light. Investigations as battery electrode materials demonstrate their ambipolar nature and the ability to store both anions and Li ions with enhanced charge storage capabilities compared to an aromatic COF or the conductive carbon material. This work showcases antiaromaticity as a new design principle for functional framework materials.

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“…In recent years, porous polymers have received considerable attention and exhibited important applications in gas storage and separation, 1,2 adsorption, 3,4 catalysis, 5,6 energy storage, 7,8 and drug delivery. [9][10][11] Compared to conventional inorganic porous materials (such as zeolites, 12 porous carbons, [13][14][15] and mesoporous silica 16 ) and metal-organic frameworks (MOFs), [17][18][19][20][21][22][23] porous organic polymers (POPs) offer excellent stability, high specific surface areas, and ease of functionalization, making them suitable for advanced applications (Table 1).…”

Section: Introductionmentioning

confidence: 99%