Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(11), С. 6376 - 6386
Опубликована: Янв. 1, 2024
Trace nicotinic acid (NA) can not only change the solvation structure of Zn 2+ , but also preferentially adsorbs on anode to reduce side reactions and inhibit dendrites. Zn‖Zn cells with NA operate for 5200 h at 1 mA cm −2 .
Язык: Английский
Advanced Materials, Год журнала: 2024, Номер 36(16)
Опубликована: Янв. 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
Язык: Английский
Процитировано
67
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(9)
Опубликована: Янв. 5, 2024
High-rate and stable Zn-ion batteries working at low temperatures are highly desirable for practical applications, but challenged by sluggish kinetics severe corrosion. Herein, inspired frost-resistant plants, we report trace hydroxyl-rich electrolyte additives that implement a dual remodeling effect high-performance low-temperature batteries. The additive with high Zn absorbability not only remodels
Язык: Английский
Процитировано
54
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
Процитировано
45
Energy & Environmental Science, Год журнала: 2024, Номер 17(9), С. 3157 - 3167
Опубликована: Янв. 1, 2024
In this work, the authors proposed desolvation activation energy as a critical descriptor for screening of electrolyte additives, establishing correlation between polarization and energy.
Язык: Английский
Процитировано
41
Advanced Science, Год журнала: 2024, Номер unknown
Опубликована: Июль 21, 2024
Abstract The feasibility of aqueous zinc‐ion batteries for large‐scale energy storage is hindered by the inherent challenges Zn anode. Drawing inspiration from cellular mechanisms governing metal ion and nutrient transport, erythritol introduced, a zincophilic additive, into ZnSO 4 electrolyte. This innovation stabilizes anode via chelation interactions between polysaccharides 2+ . Experimental tests in conjunction with theoretical calculation results verified that additive can simultaneously regulate solvation structure hydrated reconstruct hydrogen bond network within solution environment. Additionally, molecules preferentially adsorb onto anode, forming dynamic protective layer. These modifications significantly mitigate undesirable side reactions, thus enhancing transport deposition behavior. Consequently, there notable increase cumulative capacity, reaching 6000 mA h cm⁻ 2 at current density 5 cm −2 Specifically, high average coulombic efficiency 99.72% long cycling stability >500 cycles are obtained 1 Furthermore, full comprised MnO cathode an erythritol‐containing electrolyte deliver superior capacity retention. work provides strategy to promote performance anodes toward practical applications.
Язык: Английский
Процитировано
28
Nano-Micro Letters, Год журнала: 2024, Номер 16(1)
Опубликована: Авг. 14, 2024
Zinc-ion batteries are promising for large-scale electrochemical energy storage systems, which still suffer from interfacial issues, e.g., hydrogen evolution side reaction (HER), self-corrosion, and uncontrollable dendritic Zn electrodeposition. Although the regulation of electric double layer (EDL) has been verified principle to select additive as regulator is misted. Here, several typical amino acids with different characteristics were examined reveal behaviors in regulated EDL on anode. Negative charged acidic polarity (NCAP) unveiled guideline selecting reconstruct an inner zincophilic H
Язык: Английский
Процитировано
28
Energy storage materials, Год журнала: 2024, Номер 67, С. 103273 - 103273
Опубликована: Фев. 16, 2024
Язык: Английский
Процитировано
25
Advanced Energy Materials, Год журнала: 2024, Номер unknown
Опубликована: Март 4, 2024
Abstract Electrolytes play a crucial role in facilitating the ionic movement between cathode and anode, which is essential for flow of electric current during charging discharging process rechargeable batteries. In particular, electrolyte additives are considered as effective economical approaches into advancements battery technologies both conventional non‐aqueous burgeoning aqueous systems. Herein, systematic comprehensive review reported interfacial engineering Li Zn metal anodes electrolytes, respectively. The types their corresponding functionalities protection these two discussed along with electrochemical features solid interphase (SEI) derived from additives. recent progress on systems also addressed perspectives electrode, electrolyte, associated SEI. Finally, outlook perspective issues future directions field additive presented next‐generation beyond Li‐ion
Язык: Английский
Процитировано
24
Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown
Опубликована: Июнь 13, 2024
Abstract The aqueous zinc‐iodine battery is a promising energy storage device, but the conventional two‐electron reaction potential and density of iodine cathode are far from meeting practical application requirements. Given that rich in redox reactions, activating high‐valence has become research direction for developing high‐voltage batteries. In this work, by designing multifunctional electrolyte additive trimethylamine hydrochloride (TAH), stable four‐electron‐transfer I − /I 2 + reactions with high theoretical specific capacity achieved through unique amine group, Cl bidentate coordination structure (TA)ICl. Characterization techniques such as synchrotron radiation, situ Raman spectra, DFT calculations used to verify mechanism structure. This stabilizes zinc anode promoting desolvation process shielding mechanism, enabling cycle steadily at maximum areal 57 mAh cm −2 97 % utilization rate. Finally, Zn−I full cell achieves 5000 cycles an N/P ratio 2.5. contributes further development
Язык: Английский
Процитировано
23
Energy storage materials, Год журнала: 2024, Номер 66, С. 103208 - 103208
Опубликована: Янв. 20, 2024
Язык: Английский
Процитировано
22