Ultra-Thin Amphiphilic Hydrogel Electrolyte for Flexible Zinc-ion Paper Batteries

Energy & Environmental Science, Год журнала: 2024, Номер 17(18), С. 6507 - 6520

Опубликована: Янв. 1, 2024

The paper-like ZIBs can be folded and unfolded using the Miura folding technique, enhancing areal energy density by a factor of 18.

Язык: Английский

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A review of advanced electrolytes for supercapacitors

Journal of Energy Storage, Год журнала: 2024, Номер 103, С. 114338 - 114338

Опубликована: Ноя. 1, 2024

Язык: Английский

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Polydopamine-Mediated Nanofillers Reinforced Zwitterion Hydrogel Electrodes for Supercapacitors in Bioelectronics

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Фев. 5, 2025

Supercapacitors that can function when in direct contact with human tissue are of paramount importance for wearable bioelectronics but face mismatching biological and its movement. Herein, we developed a zwitterion hydrogel elastomer electrode-based all-hydrogel supercapacitor (AHSC) characterized by good energy storage properties, bioadhesion, body movement-matching mechanical biocompatibility. These functions were realized integrating [2-(methacryloyloxy)ethyl]dimethyl-(3-propylsulfonate)ammonium hydroxide (DMAPS) hydroxyethyl acrylate (HEA)-copolymerized electrode (DMAPS-HEA) redox-active nanofillers. This endowed AHSC properties Redox-active nanofillers designed the structure reduced graphene oxide (rGO)-anchored cobalt/nickel bimetallic metal-organic framework (Co/Ni MOF) using polydopamine (PDA). The Co/Ni MOF contributes to high performance. rGO enhances conductivity, whereas PDA introduces catechol groups, contributing bioadhesion. serves as flexible alternative traditional rigid low-tissue-affinity power supply devices bioelectronics.

Язык: Английский

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Polyanionic hydrogel electrolytes applied to interface-stabilized zinc ion hybrid capacitors

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161225 - 161225

Опубликована: Март 1, 2025

Язык: Английский

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Boosting Dendrite‐Free Zinc Anode with Strongly Polar Functional Group Terminated Hydrogel Electrolyte for High‐Safe Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 12, 2024

Abstract Aqueous zinc‐ion batteries (AZIBs) have become a promising energy storage device due to their low cost and high security. However, the severe dendrite growth side reactions on metallic zinc (Zn) anode hamper commercial implementation. Herein, strongly electronegative trifluoroborate anion (─BF 3 − ) functionalized polyacrylamide hydrogel (PAME) is well‐designed constructed as quasi‐solid‐state electrolyte overcome these obstacles. The PAME chain segments terminated with polar functional groups promote conversion of water molecules from free bound through enhanced hydrogen bonding interaction alleviate reactions. Furthermore, featured hierarchically porous structure electrostatic among ─BF 3− groups, Zn 2+ ions homogenizes high‐flux ion transport induce uniform deposition restrain growth. Consequently, assembled Zn‖PAME‖Zn deliver remarkable cycling stability over 1800 h at 1 mA cm −2 900 15 . Additionally, Zn‖PAME‖MnO 2 full cells achieve reversible capacity 202 mAh g −1 2.0 A retention rate 91.4% 500 cycles. This work sheds light constructing boost free‐dendrite anodes for long‐lifespan AZIBs.

Язык: Английский

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Unlocking the Facet‐Governed Zn Homoepitaxy Growth Induced by Dynamic l‐Theanine Evolution Process Realized Highly Reversible Zn Anodes

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

Abstract Achieving highly ordered and compact assembly of zinc (Zn) deposits, side‐reaction‐free, no by‐product deposition manner Zn anodes is crucial to avoid the premature failure for Zn‐ion batteries, which jointly determined by state polycrystalline substrates, interfacial microenvironment, epitaxial growth, crystal orientation, their interaction. Herein, progressive electrochemical behavior anodes, regulated converted species l ‐theanine (THE) molecules from hydrogel matrix, uncovered. THE are capable accommodating electrolyte environment provide a weakly acidic condition at infancy stage electrodeposition, induces an in situ acid etching process releasing residual stress substrates. This achieves lattice match between substrate overgrowth crystals, renders crystals seamlessly amalgamate with form oriented densely packed deposit via homoepitaxial growth combined + cations. Concomitantly, adsorbed cations facilitate formation inorganic–organic hybrid solid interphase layer. Consequently, Zn||Zn cell THE‐filled significantly long cycling stability 2000 cycles, ultrahigh average Coulombic efficiency 99.0% over 1000 cycles.

Язык: Английский

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Bioinspired extreme environment adaptive hydrogel enabled by weakening hydrogen bonding

Nano Energy, Год журнала: 2025, Номер unknown, С. 110748 - 110748

Опубликована: Фев. 1, 2025

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Dendrite‐Free Zn Anode Enabled by Dual‐Function Itaconic Acid Electrolyte Additive Via Controllable Acidic Environment and In Situ Interfacial Protective Layer for Durable Aqueous Zinc Ion Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 5, 2025

Abstract The side reactions and dendritic growth largely impede the utilization of Zn anode in aqueous zinc ion batteries (AZIBs). Herein, a novel strong acidic electrolyte additive itaconic acid (IA) is introduced to achieve highly stable via dual functions. First, use trace amounts IA can provide steady low pH environment for electrolyte, which beneficial eliminate alkaline by‐products by neutralizing OH − that accumulated near anode. Second, an interfacial protective layer be situ formed cross‐linking reduction reaction between anode, helping inhibit continuous corrosion on promote formation uniform deposition. Consequently, achieves ultra‐long cycle‐life (5390 h at 1 mA cm −2 , mAh ) enhanced coulombic efficiency (99.86% upon 2100 cycles 5 −1 ). Besides, full cell assembled with sodium vanadate delivers high reversible capacity 179.6 g over 2000 2 A . This work offers new solution related insights design electrolytes additives toward AZIBs.

Язык: Английский

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Intrinsically modified hydrogel electrolyte with highly stretchability, super adhesion and rapid recovery for highly reversible flexible zinc ion batteries

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162164 - 162164

Опубликована: Март 1, 2025

Язык: Английский

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Nanomicellar electrolyte constructed by amphiphilic additive regulates interface chemistry for highly reversible Zn-metal anode

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162402 - 162402

Опубликована: Апрель 1, 2025

Язык: Английский

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