Recent progress of flexible rechargeable batteries

Science Bulletin, Год журнала: 2024, Номер unknown

Опубликована: Сен. 1, 2024

Язык: Английский

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Metallosalen Covalent Organic Frameworks with Integrated Organic–Inorganic Active Sites for Enhanced Li Storage

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Abstract Covalent organic frameworks (COFs) hold great promise as cathode materials for lithium‐ion batteries (LIBs), but their limited conductivity has hindered broader application. In this study, a novel metallosalen COF (Cu‐TH‐COF) is introduced, synthesized via one‐pot method, incorporating redox‐active Cu ions into N 2 O pockets and creating an extended π‐d conjugated structure. This design merges inorganic active sites, enabling efficient multi‐electron transfer improving the utilization of sites in LIBs. The conjugation significantly enhances electronic conductivity, resulting improved rate performance. As result, Cu‐TH‐COF delivers impressive discharge capacity 300 mAh g −1 at 50 mA retains 174 4000 , outperforming its Cu‐free counterpart. study demonstrates first time potential COFs high‐performance opens up new strategy next‐generation

Язык: Английский

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Strategies and Prospects for Engineering a Stable Zn Metal Battery: Cathode, Anode, and Electrolyte Perspectives

Accounts of Chemical Research, Год журнала: 2025, Номер unknown

Опубликована: Янв. 29, 2025

ConspectusZinc metal batteries (ZMBs) appear to be promising candidates replace lithium-ion owing their higher safety and lower cost. Moreover, natural reserves of Zn are abundant, being approximately 300 times greater than those Li. However, there some typical issues impeding the wide application ZMBs. Traditional inorganic cathodes exhibit an unsatisfactory cycling lifetime because structure collapse active materials dissolution. Apart from cathodes, organic now gaining extensive attention as ZMBs sustainability, high environmental friendliness, tunable molecule which make them usually superior life. Nevertheless, due inferior conductivity materials, mass loading volumetric energy density still cannot meet our demands. In addition, specific working mechanism inorganic/organic also needs further investigation, necessitating use advanced in situ characterization technologies. Reversibility metallic anodes is crucial determining overall cell performances. Like Li Na anodes, uncontrolled dendrite growth annoying problem for may penetrate separator cause inner short circuit. aqueous electrolyte, highly reactive H2O molecules easily attack anode, leading undesired corrosion. Furthermore, during operation, hydrogen evolution reaction (HER) occurs, leads continuous consumption electrolytes formation insulating byproducts on anodes. Although strategies like novel anode design artificial SEI layer construction proposed inhibit dendrites protect attack, corresponding manufacturing process remains complex. Modifying electrolyte components relatively simple implement effectively stabilizes HER completely eliminated when exists modified electrolytes. Under such conditions, nonaqueous a solution future aprotic nature stability with ionic low compared that Most previous reviews focus only individual A review perspective, focusing system design, currently lacking.In this Account, we begin brief overview ZMBs, highlighting advantages current challenges. Subsequently, give summary development (such MnO2) Specifically, history representative modification strategy illustrated. Following this, discussed, along introduction cathodes. Afterward, form additive selection solid interface (SEI) briefed Thereafter, formulation systematically potential Unlike other giving very detailed information one aspect, Account offers opportunities challenges faced by We hope can provide researchers deeper insights into encouraging devise effective innovative will accelerate widespread ZMB technology.

Язык: Английский

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Mini review: Strategies for enhancing stability of high-voltage cathode materials in aqueous zinc-ion batteries

Chinese Chemical Letters, Год журнала: 2024, Номер 36(1), С. 110368 - 110368

Опубликована: Авг. 25, 2024

Язык: Английский

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Conjugated microporous polymers as promising alternatives to traditional electrodes in alkali metal ion batteries

Chemical Engineering Journal, Год журнала: 2024, Номер 500, С. 156578 - 156578

Опубликована: Окт. 12, 2024

Язык: Английский

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Unveiling the central metal effects in thiophene-substituted metalloporphyrins electrodes for electrochemical energy sources: A first-principles study

Journal of Power Sources, Год журнала: 2025, Номер 631, С. 236284 - 236284

Опубликована: Янв. 25, 2025

Язык: Английский

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5,7,12,14-Pentacenetetrone as a cation storage electrode enabling preferential extraction and recovery of Ca2+ and Mg2+

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160018 - 160018

Опубликована: Янв. 1, 2025

Язык: Английский

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Trithiocyanuric acid trilithium salt: A low-cost, high-energy, reduction-state organic cathode material based on disulfide bond

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162734 - 162734

Опубликована: Апрель 1, 2025

Язык: Английский

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In Situ Monitoring of Redox Electrochemistry of Perylene Diimide Electrodes by UV–Vis–NIR Spectroscopy

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Abstract By virtue of sustainability and redox functionality, organic materials are an emerging class electrodes for multivalent metal‐ion batteries. However, the inevitable dissolution radical anions in electrolyte media during electrochemical reduction poses a challenge to reversibility stability. The stable reversible formation dianions cationic perylene diimide ( c PDI) aqueous calcium‐ion is reported. Electrostatically assembled PDI onto functional titanium carbide Ti 3 C 2 T x MXene processed form semi‐transparent thin films probe characteristic spectral changes reduction–oxidation cycles. In situ UV–Vis‐NIR spectroscopy studies confirm potential dependent at −0.3 −0.6 V versus Ag wire, respectively. Moreover, bridging Ca 2+ ions between two molecules also causes change electron density atoms, as observed from shift transverse surface plasmonic peak MXene. This clearly signifies role non‐covalent interactions stabilizing media, thus suppressing effects. study opens avenues exploitation design charge storage hosts metal‐ions.

Язык: Английский

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Dual‐Site Dual‐Charge Carrier Mechanism for High‐Energy and Long‐Life Metal‐Free Hybrid Energy Storage Devices

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

Abstract Designing organic electrode materials that achieve high energy density without compromising long‐term cycling stability is a grand challenge in storage research. Here, this addressed by introducing unique dual‐site, dual‐charge carrier mechanism leveraging multielectron nitro‐triazine trimeric cathode and two non‐metallic charge carriers (NH 4 + H ). We present highly redox‐active exceptionally stable molecule, 2,4,6‐tris(4‐nitrophenyl)‐1,3,5‐triazine (TNPT), featuring nitro triazine groups enable multiple redox sites, extended π‐conjugation, strong‐hydrogen bonding affinity, π–π stacking capabilities. The dual‐redox interact synergistically with NH an optimized 3 m OTF electrolyte, tetrahedral hydrogen Grotthuss/special pair dance proton transfer, boosting fast kinetics exceptional stability. A nitrogen‐doped graphene oxide(NG)/TNPT nanocomposite delivers impressive specific capacity of 263 mAh g −1 at 0.1 , excellent cyclic stability‐retaining 97.8% over 10 000 cycles. Furthermore, the metal‐free hybrid full‐cell device, consisting nanoporous carbon capacitive anode NG@TNPT battery cathode, achieves remarkable 45.11 Wh kg highest reported for systems to date. This work provides new design strategy developing high‐energy, long‐life, devices.

Язык: Английский

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