Selective Shielding of the (002) Plane Enabling Vertically Oriented Zinc Plating for Dendrite‐Free Zinc Anode

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(11)

Published: Dec. 13, 2023

Uncontrolled growth of Zn dendrites hinders the future development aqueous Zn-ion batteries. Despite that (100) plane possesses better zincophilic ability and fast kinetics, are generally suppressed via (002) plane-oriented deposition in previous reports; ordered plane-dominant deposition, especially under high current density has not yet been realized. Herein, vertically-oriented plating with preferential is reported using disodium lauryl phosphate (DLP) as an electrolyte additive. DLP preferentially anchored on crystal polar group, then atoms retarded by long alkyl chain, finally promoting preferred plane. This unique pattern results ultrastable plating/stripping at a super-high 50 mA cm

Language: Английский

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Taurine-mediated dynamic bridging strategy for highly stable Zn metal anode

Energy storage materials, Journal Year: 2023, Volume and Issue: 61, P. 102882 - 102882

Published: July 10, 2023

Language: Английский

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Interfacial Regulation via Anionic Surfactant Electrolyte Additive Promotes Stable (002)‐Textured Zinc Anodes at High Depth of Discharge

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(38)

Published: Aug. 22, 2023

Abstract Aqueous zinc‐ion batteries have been identified as a viable option for grid energy storage. However, their practical application is limited by the poor performances at high use rate of zinc. A suitable strategy to improve cycling stability depth discharge (DOD) realizing (002)‐textured Zn plating suppress dendrite growth and side reactions. Herein, novel electrolyte additive sodium 3‐mercapto‐1‐propanesulfonate (MPS) introduced regulate zinc/electrolyte interfacial structure. The MPS anions can form an adsorption layer on anode surface, which induces deposition in (002) direction indicated first‐principles calculations. Additionally, facilitate reduction barrier associated with zinc deposition. This modified interface effectively inhibits reactions, resulting remarkable lifespan Zn||Zn symmetric cells, exceeding 800 h DOD 50%, over 4500 1.0 mA cm −2 /1.0 mAh . Moreover, capacity full cells V 2 O 5 ·H or polyaniline cathodes substantially improved. pouch‐type Zn||V cell reveals 42 good retention 86.6% after 250 cycles, highlighting significant potential applications.

Language: Английский

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Electrolyte Additives for Stable Zn Anodes

Advanced Science, Journal Year: 2023, Volume and Issue: 11(4)

Published: Nov. 27, 2023

Abstract Zn‐ion batteries are regarded as the most promising for next‐generation, large‐scale energy storage because of their low cost, high safety, and eco‐friendly nature. The use aqueous electrolytes results in poor reversibility leads to many challenges related Zn anode. Electrolyte additives can effectively address such challenges, including dendrite growth corrosion. This review provides a comprehensive introduction major current strategies used anode protection. In particular, an in‐depth fundamental understanding is provided various functions electrolyte additives, electrostatic shielding, adsorption, situ solid interphase formation, enhancing water stability, surface texture regulation. Potential future research directions also discussed.

Language: Английский

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Polymer Molecules Adsorption‐Induced Zincophilic‐Hydrophobic Protective Layer Enables Highly Stable Zn Metal Anodes

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(16)

Published: Jan. 5, 2024

Zn metal, as one of the most promising anode materials for aqueous batteries, suffers from uncontrollable dendrite growth and water-induced parasitic reactions, which drastically compromise its cycle life Coulombic efficiency (CE). Herein, a nonionic amphipathic additive Tween-20 (TW20) is proposed that bears both zincophilic hydrophobic units. The segment TW20 preferentially adsorbs on anode, while exposed electrolyte side, forming an electrolyte-facing layer shields active water molecules. Moreover, theoretical calculation experimental results reveal can induce preferential (002) plane by adsorbing other facets, enabling dendrite-free anodes. Benefitting these advantages, stability reversibility anodes are substantially improved, reflected stable cycling over 2500 h at 1.0 mA cm

Language: Английский

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Electrolyte Engineering via Competitive Solvation Structures for Developing Longevous Zinc Ion Batteries

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(48)

Published: Nov. 7, 2023

Abstract Aqueous zinc ion batteries (ZIBs) are troubled by the severe Zn dendrite growth and side reactions, manifesting as low coulombic efficiency poor cyclic stability. Electrolyte engineering is regarded an efficient method to improve metal reversibility. Herein, a distinctive electrolyte regulation strategy demonstrated for long‐lasting ZIBs through construction of competitive solvation structures. In composite aqueous system, insoluble LiNO 3 in dimethyl carbonate (DMC) introduced outwit active water dissociation from 2+ coordination environment, organic/anion‐enriched structure enables formation stable interface effectively restrain adverse reactions. Distinctly, anode exhibits inhibited with high reversibility plating/stripping processes over 1600 h exceptional cumulative capacity 16 Ah cm −2 , ultra‐long lifespan high‐temperature (50 °C), discharge depth (65%). Furthermore, || V 2 O 5 full battery can operate stably 1000 cycles at 1 A g −1 . This work points direction solve major challenges collaborative regulated environment interfacial chemistry.

Language: Английский

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Salt Anion Amphiphilicity-Activated Electrolyte Cosolvent Selection Strategy toward Durable Zn Metal Anode

ACS Nano, Journal Year: 2023, Volume and Issue: 17(22), P. 23065 - 23078

Published: Nov. 10, 2023

One effective solution to inhibit side reactions and Zn dendrite growth in aqueous Zn-ion batteries is add a cosolvent into the Zn(CF3SO3)2 electrolyte, which has potential form robust solid electrolyte interface composed of ZnF2 ZnS. Nevertheless, there still lack discussion on convenient selection method for cosolvents, can directly reflect interactions between solvent solute rationally design solvation structure. Herein, logP, where P octanol-water partition coefficient, general parameter describe hydrophilicity lipophilicity chemicals, proposed as standard selecting cosolvents demonstrated by testing seven different types solvents. The with logP value similar that salt anion CF3SO3- interact CF3SO3-, Zn2+, H2O, leading reconstruction To prove concept, methyl acetate (MA) an example due its CF3SO3-. Both experimental theoretical results illustrate MA molecules not only enter shell but also coordinate Zn2+ or forming involved core-shell special structure reduces H2O activity contributes anion-induced ZnCO3-ZnF2-rich interface. As result, Zn||Zn cell Zn||NaV3O8·1.5H2O MA-involved exhibit superior performances MA-free electrolyte. This work provides insight via chemistry high-performance batteries.

Language: Английский

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A Trifunctional Electrolyte Enables Aqueous Zinc Ion Batteries with Long Cycling Performance

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(30)

Published: March 25, 2024

Abstract Aqueous zinc ion batteries hold promise as alternative systems to lithium‐based batteries. However, practical development faces critical challenges due parasitic side reactions and dendrite growth in anodes. While introducing electrolyte additives is promising, monofunctional offer limited protection the anode from a single aspect. Herein, disodium succinate additive presented establish hydrophobic zincophilic dual electric layer structure on Zn surface, regulate solvation of 2+ , act pH buffer during cycling. As result, symmetrical cell with an containing 0.2 m SADS shows durable life over 2200 h, Zn||MnO 2 full still maintains 80% capacity retention after 1000 cycles. In addition, both show wide applicability match NVO I cathode. This work provides low‐cost multifunctional additive, facilitating high‐performance aqueous

Language: Английский

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Revealing the missing puzzle piece of concentration in regulating Zn electrodeposition

Proceedings of the National Academy of Sciences, Journal Year: 2023, Volume and Issue: 120(44)

Published: Oct. 23, 2023

Despite achievements in suppressing dendrites and regulating Zn crystal growth, secondary aqueous batteries are still rare the market. Existing strategies mainly focus on electrode modification electrolyte optimization, while essential role of ion concentration liquid-to-solid electrodeposition is neglected for a long time. Herein, mechanism regulation investigated depth by combining electrochemical tests, post hoc characterization, multiscale simulations. First, initial thermodynamically controlled epitaxial whereas with rapid depletion ions, overpotential transcends thermodynamic influence to kinetic control. Then, evolution morphology from 2D sheets 1D whiskers due change insightfully revealed morphological characterization phase-field modeling. Furthermore, discharge (DOD) results large differences at electrode-electrolyte interface, mild distribution lower DOD generating (002) plane heavily varied higher yielding arbitrarily oriented 3D blocks. As proof concept, relaxation introduced into two systems homogenize distribution, revalidating electrodeposition, vital factors affecting time, i.e., current density distance, deeply investigated, demonstrating that time positively related both more sensitive distance. This work contributes reacquainting undergoing phase transitions reveals missing piece puzzle electrodeposition.

Language: Английский

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Building Near‐Unity Stacked (002) Texture for High‐Stable Zinc Anode

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(14)

Published: Dec. 21, 2023

Abstract Dendrite‐free Zn anode is the key to avoiding battery failure, which largely determined by crystal growth during electrodeposition process. Therefore, controlling specific orientation of imperative for high‐performing aqueous zinc ion batteries. Herein, an electrocrystallization regulation strategy proposed achieve near‐unity stacked (002) texture growth. Featuring zincophilic nature and high electronegative carboxylate radical, disodium maleate molecules tend selectively adsorb on plane, forming a dynamic protection layer. This adsorption layer regulates 2+ diffusion along [100] [101] orientations with lowest deposition rate homogenizes flux, keeps away water from surface, constructing flattened horizontally arranged dominantly inhibited side‐reaction. Consequently, exhibits 40‐fold enhancement in running lifetime beyond 3200 h improved coulombic efficiency 99.81% over 3000 cycles than that bare ZnSO 4 electrolyte. Even at harsh plating/stripping conditions 30 mAh cm −2 , still sustains state‐of‐the‐art stability 120 h, enabling substantial advance long‐term battery.

Language: Английский

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