Covalent Organic Framework with 3D Ordered Channel and Multi-Functional Groups Endows Zn Anode with Superior Stability

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: Jan. 4, 2024

Abstract Achieving a highly robust zinc (Zn) metal anode is extremely important for improving the performance of aqueous Zn-ion batteries (AZIBs) advancing “carbon neutrality” society, which hampered by uncontrollable growth Zn dendrite and severe side reactions including hydrogen evolution reaction, corrosion, passivation, etc. Herein, an interlayer containing fluorinated zincophilic covalent organic framework with sulfonic acid groups (COF-S-F) developed on (Zn@COF-S-F) as artificial solid electrolyte interface (SEI). Sulfonic group (− SO 3 H) in COF-S-F can effectively ameliorate desolvation process hydrated ions, three-dimensional channel fluoride (-F) provide interconnected channels favorable transport ions ion-confinement effects, endowing Zn@COF-S-F dendrite-free morphology suppressed reactions. Consequently, symmetric cell stably cycle 1,000 h low average hysteresis voltage (50.5 mV) at current density 1.5 mA cm −2 . Zn@COF-S-F|MnO 2 delivers discharge specific capacity 206.8 mAh g −1 1.2 A after 800 cycles high-capacity retention (87.9%). Enlightening, building SEI metallic surface targeted design has been proved effective strategy to foster practical application high-performance AZIBs.

Language: Английский

---

Design Strategies for Aqueous Zinc Metal Batteries with High Zinc Utilization: From Metal Anodes to Anode-Free Structures

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: Jan. 4, 2024

Aqueous zinc metal batteries (AZMBs) are promising candidates for next-generation energy storage due to the excellent safety, environmental friendliness, natural abundance, high theoretical specific capacity, and low redox potential of (Zn) metal. However, several issues such as dendrite formation, hydrogen evolution, corrosion, passivation Zn anodes cause irreversible loss active materials. To solve these issues, researchers often use large amounts excess ensure a continuous supply materials anodes. This leads ultralow utilization squanders density AZMBs. Herein, design strategies AZMBs with discussed in depth, from utilizing thinner foils constructing anode-free structures 100%, which provides comprehensive guidelines further research. Representative methods calculating depth discharge different first summarized. The reasonable modification foil anodes, current collectors pre-deposited Zn, aqueous (AF-AZMBs) improve then detailed. In particular, working mechanism AF-AZMBs is systematically introduced. Finally, challenges perspectives high-utilization presented.

Language: Английский

---

Engineering an Artificial Coating Layer of Metal Porphyrin‐Based Porous Organic Polymers Toward High Stable Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(33)

Published: March 26, 2024

Abstract Aqueous zinc‐ion batteries (AZIBs) possess high theoretical capacity and good safety, making them highly hopeful for large‐scale energy storage applications. Nevertheless, the uncontrolled growth of Zn dendrites on anode significantly reduces cycle life AZIBs. In this study, a series porphyrin‐based porous organic polymers (CuTAPP‐NTCDA‐POP ZnTAPP‐NTCDA‐POP) are synthesized using aminophenylporphyrin (TAPP) aromatic dianhydride, which served as protective coating layers anode. The effectively prevents formation guides deposition 2+ because abundance zincophilic sites. As expected, symmetric cells equipped with optimum ZnTAPP‐NTCDA‐POP@Zn demonstrate longer over 1200 h at 0.5 mA cm −2 compared to bare (64 h). Moreover, when ammonium vanadate (NHVO) cathode is coupled anode, resulting full cell displays superior stability that sustains 350 cycles higher invertible (225 mAh g −1 1 A ). This performance surpasses just work proposes viable strategy address dendrites, presenting promising horizon widespread application

Language: Английский

---

Constructing Lysozyme Protective Layer via Conformational Transition for Aqueous Zn Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(29)

Published: May 8, 2024

The practical applications for aqueous Zn ion batteries (ZIBs) are promising yet still impeded by the severe side reactions on metal. Here, a lysozyme protective layer (LPL) is prepared metal surface simple and facile self-adsorption strategy. LPL exhibits extremely strong adhesion to provide stable interface during long-term cycling. In addition, strategy triggered hydrophobicity-induced aggregation effect endows with gap-free compacted morphology which can reject free water effective reaction inhibition performance. More importantly, conformation transformed from α-helix β-sheet structure before formation, thus abundant functional groups exposed interact

Language: Английский

---

Manipulating Zn Metal Texture with Guided Zincophilic Sites via Electrochemical Stripping for Dendrite-Free Zn Anodes

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(6), P. 6988 - 6997

Published: Feb. 4, 2024

Constructing a three-dimensional (3D) structure along with Zn (002) texture selective exposure is promising strategy to tackle the issues faced by metal anodes. Herein, for first time, we proposed an electrochemical stripping achieve controlled modification of and microstructure zinc foils in one step, building hierarchical preferred exposed (SZ). The SZ favorable zincophilic properties not only can reduce concentration polarization at interface but also allow grow horizontally on edge guiding adsorption sites Zn2+. Moreover, honeycomb-like beneficial rearrange distribution Zn2+ flux as well alleviating stress changes during cycling. Thus, SZ||Cu cell exhibits excellent stability Coulombic efficiency 99.76% over 1800 cycles. SZ||NaV3O8·xH2O inconspicuous self-discharge effect maintains high areal capacity 3.67 mA h cm–2 even after 700 cycles low N/P ratio 3.6. This work achieves architecture designing simultaneously metallurgical methods opens up potential implement practicality

Language: Английский

---

A porphyrin-functionalized conjugated microporous polymer coating for stable dendritic-free aqueous zinc ion batteries

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152440 - 152440

Published: May 25, 2024

Language: Английский

---

Design Strategies toward High‐Utilization Zinc Anodes for Practical Zinc‐Metal Batteries

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: 30(21)

Published: Jan. 8, 2024

Aqueous Zn-metal batteries (AZMBs) hold a promise as the next-generation energy storage devices due to their low cost and high specific energy. However, actual density falls far below requirements of commercial AZMBs use excessive Zn anode associated issues including dendritic growth side reactions. Reducing N/P ratio (negative capacity/positive capacity) is an effective approach achieve density. A significant amount research has been devoted increasing cathode loading capacity or tuning utilization batteries. Nevertheless, there currently lack comprehensive overview regarding how enhance balance cycle life AZMBs. In this review, we summarize challenges faced in achieving high-utilization anodes elaborate on modifying strategies for lower ratio. The current status future prospects practical application high-performance are proposed at end review.

Language: Английский

---

Covalent Triazine Based Frameworks with Donor‐Donor‐π‐Acceptor Structures for Dendrite‐Free Lithium Metal Batteries

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(41)

Published: July 17, 2024

The appearance of disordered lithium dendrites and fragile solid electrolyte interfaces (SEI) significantly hinder the serviceability metal batteries. Herein, guided by theoretical predictions, a multi-component covalent triazine framework with partially electronegative channels (4C-TA

Language: Английский

---

Suppressing hydrogen evolution and promoting dendrite free zinc deposition by fluorinated triazine framework towards robust aqueous zinc ion batteries

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 812 - 819

Published: Aug. 5, 2024

Language: Английский

---

Three‐in‐One Zinc Anodes Created by a Large‐scale Two‐Step Method Achieving Excellent Long‐Term Cyclic Reversibility and Thin Electrode Integrity

Advanced Science, Journal Year: 2024, Volume and Issue: 11(28)

Published: May 20, 2024

Abstract Practical aqueous zinc‐ion batteries require low‐cost thin zinc anodes with long‐term reversible stripping/depositing. However, encounter more severe issues than thick zinc, such as dendrites and uneven stripping, resulting in subpar performance limited lifetimes. Here, this work proposes a three‐in‐one anode obtained by large‐scale two‐step method to address the above issues. In anode, copper foil an inactive current collector solves gradual reduction of active area when only pure collector. This develops automatic electroplating device that can continuously deposit layer on conducting meet demand for zinc‐coated foils. The sodium carboxymethylcellulose (CMC)‐zinc fluoride (ZnF 2 ) protective prevents direct contact between separator, provides uniform sufficient supply ions. CMC‐ZnF ‐coated performs up 3000 deposition/stripping cycles cumulative capacity 6 Ah cm −2 average Coulombic efficiency 99.94%. Zn||ZnVO cell using achieved high retention over 70% after 15 000 cycles. proposed will facilitate industrialization practical anodes.

Language: Английский

---