Interfacial Dual‐Modulation via Cationic Electrostatic Shielding and Anionic Preferential Adsorption toward Planar and Reversible Zinc Electrodeposition

Advanced Functional Materials, Год журнала: 2024, Номер 34(38)

Опубликована: Март 29, 2024

Abstract Rechargeable aqueous zinc‐ion batteries (ZIBs) with low cost and high safety arouse most promises as next‐generation energy storage configurations. Yet the heterogeneous electric field distributions interfacial side reactions are considered stumbling roadblocks toward commercialization of ZIBs. Here, these challenges via cationic electrostatic shielding anionic preferential adsorption by sodium gluconate (SG) additive addressed. The polar functional groups (─COO − ) SG anions preferentially anchor to Zn anode, which can alter 2+ migration pathways restrain reactions. Moreover, per smaller effective reduction potential, separated cations (Na + from serve a dynamic armor provide strong effect for uniform deposition on [002] crystal plane, radically eliminating dendrite growth promoting anti‐corrosion behaviors Zn. Consequently, Zn//Zn symmetric cell modified electrolyte confers lifespan up 600 h at 80% depth discharge. Furthermore, even under record‐low negative/positive ratio 2.11 lean 30 µL mAh −1 , Zn//VOX full remains enhanced capacity retention 84.37% after 800 cycles 1 A g . This work develops an dual‐modulation strategy provides unique insights enlighten practical application

Язык: Английский

---

Phase Inversion‐Induced Porous Polymer Coating for High Rate and Stable Zinc Anode

Advanced Functional Materials, Год журнала: 2024, Номер 34(33)

Опубликована: Март 13, 2024

Abstract Polymer coatings are emerged as promising candidates for zinc anode artificial solid electrolyte interphase (ASEI) owing to their barrier effect and zincophilicity. However, the poor ionic conductivity of conventional polymer limits application. Herein, inspired by epidermis function, a porous poly(methylmethacrylate) (PMMA) coating is fabricated stabilize Zn via novel phase inversion method. The modified delivers remarkable lifespan over 4000 h at 1 mA cm −2 , mAh 120 20 in symmetrical cells. Moreover, PMMA‐Zn||NVO full cell also exhibits an excellent cycling stability 500 cycles A g −1 well ultralong exceeding 5000 5 . rate performance mainly attributed avoided side reactions protection, enhanced diffusion reaction kinetics derived from good zincophilicity structure PMMA. facile universal method fabricating ASEI provides new insight application materials protection.

Язык: Английский

---

3D Ternary Alloy Artificial Interphase Toward Ultra‐Stable and Dendrite‐Free Aqueous Zinc Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Апрель 9, 2024

Abstract Rechargeable aqueous zinc‐ion batteries (AZIBs) are one of the most promising post‐lithium battery technologies due to their low cost, high safety, and environmental friendliness. However, practical development is hindered by issues Zn metal anodes, including dendrite growth, passivation, hydrogen evolution other side reactions. Herein, circumvent these issues, a facile universal alloy electrodeposition strategy proposed construct 3D structured ternary artificial interphase layer on foil as an anode for high‐performance AZIBs. The density functional theory (DFT) theoretical calculations, in situ optical visualization spectroscopic results validate that zincophilic Zn─Sn─Bi@Zn with lower migration energy barrier weak adsorption sites can promote uniform deposition suppress Zn─Sn─Bi@Zn//NH 4 V O 10 full cell demonstrates specific capacity 110.4 mAh g −1 even after 000 cycles at 5.0 A . Notably, NH cathode loading mass ≈20.0 mg cm −2 maintains cyclic stability 400 cycles. This work proposes innovative Zn‐based methodology design advanced AZIBs beyond.

Язык: Английский

---

Improvements and Challenges of Hydrogel Polymer Electrolytes for Advanced Zinc Anodes in Aqueous Zinc-Ion Batteries

ACS Nano, Год журнала: 2024, Номер 18(33), С. 21779 - 21803

Опубликована: Авг. 12, 2024

Aqueous zinc-ion batteries (AZIBs) are widely regarded as desirable energy storage devices due to their inherent safety and low cost. Hydrogel polymer electrolytes (HPEs) cross-linked polymers filled with water zinc salts. They not only used in flexible but also represent an ideal electrolyte candidate for addressing the issues associated Zn anode, including dendrite formation side reactions. In HPEs, abundance of hydrophilic groups can form strong hydrogen bonds molecules, reducing activity inhibiting decomposition. At same time, special

Язык: Английский

---

Advanced cellulose-based materials toward stabilizing zinc anodes

Science China Chemistry, Год журнала: 2024, Номер 67(5), С. 1465 - 1484

Опубликована: Янв. 23, 2024

Язык: Английский

---