An integrated Janus hydrogel with different hydrophilicities and gradient pore structures for high-performance zinc-ion batteries

Energy & Environmental Science, Год журнала: 2024, Номер 17(12), С. 4126 - 4136

Опубликована: Янв. 1, 2024

A pioneering achievement is made in developing integrated Janus hydrogel electrolytes featuring gradient pores cross-section and varying hydrophilicities on surfaces. This novel enables Zn-ion batteries to exhibit excellent performance.

Язык: Английский

---

Constructing a 3D Zinc Anode Exposing the Zn(002) Plane for Ultralong Life Zinc‐Ion Batteries

Small, Год журнала: 2024, Номер 20(35)

Опубликована: Апрель 24, 2024

The limited lifespan of aqueous Zn-ion batteries (ZIBs) is primarily attributed to the irreversible issues associated with Zn anode, including dendrite growth, hydrogen evolution, and side reactions. Herein, a 3D anode exposing Zn(002) crystal planes (3D-Zn(002) anode) first constructed by an electrostripping method in KNO

Язык: Английский

---

Reconstruction of Electric Double Layer on the Anode Interface by Localized Electronic Structure Engineering for Aqueous Zn Ion Batteries

Advanced Energy Materials, Год журнала: 2024, Номер 14(29)

Опубликована: Май 7, 2024

Abstract The electric double layer (EDL) at the electrode/electrolyte interface plays a crucial role to electrochemical reactions of zinc ion batteries. For Zn anode, EDL consists H 2 O dipoles, which can cause corrosion and passivation. Herein, localized electronic‐rich (LER) structure performing as soild electrolyte interphase (SEI) changes electron distribution, leading rapid capture 2+ , thus promoting desolvation cH shell. Moreover, LER generates an electrostatic repulsion effect SO 4 2− . Consequently, unique O‐poor is reconstructed with distribution ‐H O‐SO inhibits side improves deposition kinetics In situ Raman intuitively confirms that zinc‐ion‐flux uniform during whole electroplating process. regulator for structure, leads smooth fast deposition. performance enhancement demonstrated by LER@Zn//LER@Zn cells, exhibit exceptional lifespan 4800 h. Furthermore, LER@Zn///MnO cell shows improved cycling stability over 1500 cycles, high capacity 124 mAh g −1 5 C.

Язык: Английский

---

Synergistic modulation of hydrogen bond network reconstruction and pH buffering of electrolyte enables highly reversible Zn anode

Chemical Engineering Journal, Год журнала: 2024, Номер 493, С. 152622 - 152622

Опубликована: Май 27, 2024

Язык: Английский

---

Construct wave-like structure on the anode surface for achieving controllable zinc deposition in aqueous zinc-ion batteries

Journal of Energy Storage, Год журнала: 2025, Номер 115, С. 115991 - 115991

Опубликована: Фев. 27, 2025

Язык: Английский

---

Polyelectrolyte Membrane Enables Highly Reversible Zinc Battery Chemistry via Immobilizing Anion and Stabilizing Water

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

The integration of water-based electrolytes into zinc-ion batteries encounters challenges due to the limited voltage window water, interfacial side reactions mobile counterions, and growth zinc metal (Zn0) dendrites during charge. In this study, we introduce a nonfluorinated, cation-conducting polyelectrolyte membrane (PEM) designed alleviate these by suppressing reactivities both water counterions. This PEM forms hydrogen bonds with molecules through its proton-accepting chains, thus shifting lowest unoccupied molecular orbital (LUMO) energy from −0.37 −0.14 eV inducing negative shift in onset potential for evolution 110 mV. Additionally, it immobilizes counteranions onto polymer backbones via covalent bonding, hence making Zn2+ transference number nearly unity (0.96). Meanwhile, high modulus establishes solid-state diffusion barrier homogenize flux, leading 3D in-plane compact Zn0 plating within (002) plane. Atomic resolution scanning transmission electron microscopy (STEM) reveals corrosion-free deposition without electrolyte degradation, while operando transition X-ray (TXM) further illustrates real-time dendrite-free process at 5 mA/cm2. Consequently, unique properties water-binding anion-tethering enable enhanced electrochemical performance employing highly fluorinated expensive anions. demonstrates durability 3800 h Zn0–Zn0 symmetric cells lifetime 6000 cycles Zn0–LiV3O8 full cells.

Язык: Английский

---

Recent advances in battery characterization using in situ XAFS, SAXS, XRD, and their combining techniques: From single scale to multiscale structure detection

Exploration, Год журнала: 2023, Номер 4(1)

Опубликована: Ноя. 20, 2023

Abstract Revealing and clarifying the chemical reaction processes mechanisms inside batteries will bring a great help to controllable preparation performance modulation of batteries. Advanced characterization techniques based on synchrotron radiation (SR) have accelerated development various over past decade. In situ SR been widely used in study electrochemical reactions due their excellent characteristics. Herein, three most wide important battery research were systematically reviewed, namely X‐ray absorption fine structure (XAFS) spectroscopy, small‐angle scattering (SAXS), diffraction (XRD). Special attention is paid how these are understand mechanism improve practical characteristics Moreover, combining advance acquisition single scale information simultaneous multiscale structures, which new perspective Finally, challenges future opportunities for featured current development.

Язык: Английский

---

Challenges and Strategies in the Development of Zinc‐Ion Batteries

Small Methods, Год журнала: 2023, Номер 7(7)

Опубликована: Апрель 10, 2023

Abstract Although promising, the practical use of zinc‐ion batteries (ZIBs) remains plagued with uncontrollable dendrite growth, parasitic side reactions, and high intercalation energy divalent Zn 2+ ions. Hence, much work has been conducted to alleviate these issues maximize density cyclic life cell. In this holistic review, mechanisms rationale for stated challenges shall be summarized, followed by corresponding strategies employed mitigate them. Thereafter, a perspective on present research outlook ZIBs would put forth in hopes enhance their electrochemical properties multipronged approach.

Язык: Английский

---

Design strategy and comprehensive performance assessment towards Zn anode for alkaline rechargeable batteries

Journal of Energy Chemistry, Год журнала: 2023, Номер 82, С. 122 - 138

Опубликована: Апрель 14, 2023

Язык: Английский

---

Pivotal Role of Organic Materials in Aqueous Zinc‐Based Batteries: Regulating Cathode, Anode, Electrolyte, and Separator

Advanced Functional Materials, Год журнала: 2023, Номер 34(3)

Опубликована: Окт. 9, 2023

Abstract Aqueous zinc‐based batteries have garnered considerable interest as promising energy storage devices due to the low cost, remarkable density, high safety, and eco‐friendliness. However, mutual challenges of cathode dissolution, electrolyte parasitic reactions, disordered zinc dendrite growth, easily punctured separator significantly impeded widespread commercialization aqueous batteries. Realizing high‐performance becomes imperative yet remains extremely challenging. To address these concerns, great efforts recently been made design Here state‐of‐the‐art in organic materials is critically reviewed for batteries, covering main components a battery. This review provides comprehensive overview on strategies encompassing cathode, anode, electrolyte, separator. Furthermore, prospective research directions are also discussed provide guideline further development highly stable

Язык: Английский

---