A Universal Additive Strategy to Reshape Electrolyte Solvation Structure toward Reversible Zn Storage

Li, Tian Chen; Lim, YewVon; Li, Xue Liang; Luo, Songzhu; Lin, Congjian; Fang, Daliang; Xia, Sunwen; Wang, Ye; Yang, Hui Ying

doi:10.1002/aenm.202103231

Cited by 252 publications

(172 citation statements)

References 47 publications

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“…Therefore, the deposition/stripping courses of Zn were highly reversible, attaining an average coulombic efficiency of 99.7% over 1000 cycles in a Zn/Cu asymmetric cell. [122] Moreover, the Zn//VS 2 @SS full cell based on this electrolyte exhibited an excellent stability (99.4% capacity retention after 2000 cycles). Various other organic additives were proposed, including N,Ndimethylformamide (DMF), [123] dimethyl sulfoxide (DMSO), [124] diethyl ether [125] and polyacrylamide.…”

Section: Electrolyte Formulationmentioning

confidence: 89%

Methods for Rational Design of Advanced Zn‐Based Batteries

et al. 2022

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Rechargeable aqueous zinc-based batteries (AZBs) have received massive attention as promising contenders for the future large-scale energy storage due to their low cost, inherent safety, and abundant resources. However, the insufficient energy density and poor stability have become the key to hinder their further application. As is well known, the energy densities (E, Wh kg −1 ) of AZBs are determined by the specific capacity (mAh g −1 ) and output voltage (V). Given the fixed redox potential and capacity of the Zn metal anode, the energy density of AZBs is mainly determined by the cathode material, and the rich material systems of the cathode provide more possibilities to this field. Meanwhile, the methods to improve the stability and performance of the Zn anodes have gained more and more attention due to the severe Zn dendrite growth that can pierce the separator and lead to short-circuiting of the cell. Therefore, in this review, we comprehensively summarize the rational design methods in optimizing the cathode, anode, and device architecture, and classic examples of each catalogue are discussed in details as well. Last, the issues and outlook for further development of high performance AZBs are also presented.

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Section: Electrolyte Formulationmentioning

confidence: 89%

Methods for Rational Design of Advanced Zn‐Based Batteries

et al. 2022

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“…Various strategies have been proposed, such as fabricating artificial protective coating, [11] designing quasi-solid hydrogel, [12,13] alloying tactics, [14,15] using 3D conductive hosts, [16,17] and optimizing electrolytes. [18][19][20][21] Among them, constructing an artificial layer on the Zn anode is the most effective and practicable. CaCO 3 , [22] NaTi 2 (PO 4 ) 3 , [23] TiO 2 , [24] ZnO, [25] Al 2 O 3 , [26] ZrO 2 , [27] metal-organic framework (MOF), [28] sieve-functional kaolin, [29] montmorillonite (MMT), [30] etc.…”

Section: Research Articlementioning

confidence: 99%

Cellulose‐Acetate Coating by Integrating Ester Group with Zinc Salt for Dendrite‐Free Zn Metal Anodes

Liu

Han

et al. 2022

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Zinc (Zn) metal is considered a potential anode owing to its high theoretical capacity, safety, and low cost. However, the dendrites and corresponding side reactions in aqueous electrolytes hinder their further development in environmentally‐friendly energy storage. Herein, ion‐affiliative cellulose acetate (CA) coating with Zn(CF3SO3)2 is constructed on Zn anode (CAZ@Zn). Owing to the complexation effect between the polar ester group (CO) and Zn salt (Zn2+), the CAZ polymer coating enhances the hydrophilicity of the Zn anode and reduces the interfacial resistance, allowing the rapid Zn2+ diffusion and homogenizing the Zn deposition in an aqueous electrolyte to suppress zinc dendrite formation and growth. Therefore, the symmetric CAZ@Zn//CAZ@Zn battery achieves reversible plating/stripping over 2800 h at 1 mA cm−2 with 1 mAh cm−2, about sevenfold higher than bare Zn. The full cell fabricated with an optimized Zn anode and the NH4V4O10 cathode achieves substantially stable performance, superior to that of bare Zn. This work provides a straightforward, effective, and scalable method to suppress the zinc dendrites and corresponding side reactions for aqueous Zn‐ions batteries.

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confidence: 99%

Suppressed Dissolution and Enhanced Desolvation in Core–Shell MoO₃@TiO₂ Nanorods as a High‐Rate and Long‐Life Anode Material for Proton Batteries

Wang

Zhao

Song

et al. 2022

Advanced Energy Materials

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of renewable energies need them to couple with energy storage devices. [1][2][3][4] Aqueous batteries stand out from many types of batteries, due to their intrinsic safe, low material costs, and facile manufacturing as well. [5][6][7] One of the typical examples is lead-acid batteries that have been commercialized and adopted in many fields. [8][9][10] However, the strong corrosion on cell components caused by highly concentrated acid, the unsatisfactory cycle life, and the high toxicity of Pb to organisms greatly limit the applications of lead-acid batteries. [10][11][12] Hence, aqueous metal-ion batteries based on alkali ions, alkaline-earth metal ions, and Zn 2+ are considered intensively to address these concerns. [13][14][15][16] However, their large ionic radii are very harmful to rate capability. Compared to these ions, protons as the charge carriers have the unique advantages, such as a small ion size, a low molar mass, and a high abundance in nature. [9,17,18] Moreover, benefited from Grotthuss mechanism, protons in aqueous electrolytes and in electrode materials would exhibit high ionic conductivity, facilitating the reaction kinetics and rate capability. [19][20][21] Up to now, metal oxides, prussian blue analogues (PBA), and organic materials have been explored as cathode materials of proton batteries. Gogotsi et al. reported the proton-intercalation chemistry in MnO 2 based on surface reactions. [22] Hu et al. [23] found that RuO 2 •xH 2 O nanotubes had a specific capacitance of 1300 F g −1 related to proton insertion/extraction. Ji et al. [20] demonstrated that one of Turnbull's blue, in which protons were transferred via Grotthuss mechanism, presented extraordinary rate performances up to 4000 C (380 A g −1 , 508 mA cm −2 ) and ultralong cycling about 0.73 million cycles. Compared with the case of cathode materials, the anode materials are rarely reported. [24][25][26][27] MoO 3 as one of the anode materials has promising perspectives, due to its high capacity, low cost, and layer structure. Yan and co-workers [25] prepared MoO 3 by calcining MoS 2 nanosheets in air, which showed a capacity of 152 mAh g −1 at 5 C in 1 m H 2 SO 4 . The capacity, however, went down to ≈68% of the initial data only after 100 cycles at 10 C or ≈67% at 50 C. It was attributed to the dissolution of MoO 3 and the formation of polyoxometalate, resulting in the capacity fading. Thus, Zhao et al. [26] used highly concentrated H 2 SO 4 (6 m) to inhibit the detrimental dissolution of MoO 3 . Although cycling stability Rechargeable proton batteries are attractive, because protons as a charge carrier have a small ionic radius, a lightest mass, and a high abundance on Earth. MoO 3 , as one of the promising anode materials in rechargeable proton batteries, suffers from the severe dissolution in acidic electrolytes upon cycling.Here, an ultrathin TiO 2 shell is coated on MoO 3 nanorods to suppress the detrimental dissolution during cycles. TiO 2 also lowers the desolvation energy of hydrated protons, promoting the reaction kinetics...

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A Universal Additive Strategy to Reshape Electrolyte Solvation Structure toward Reversible Zn Storage

Cited by 252 publications

References 47 publications

Methods for Rational Design of Advanced Zn‐Based Batteries

Methods for Rational Design of Advanced Zn‐Based Batteries

Cellulose‐Acetate Coating by Integrating Ester Group with Zinc Salt for Dendrite‐Free Zn Metal Anodes

Suppressed Dissolution and Enhanced Desolvation in Core–Shell MoO₃@TiO₂ Nanorods as a High‐Rate and Long‐Life Anode Material for Proton Batteries

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A Universal Additive Strategy to Reshape Electrolyte Solvation Structure toward Reversible Zn Storage

Cited by 252 publications

References 47 publications

Methods for Rational Design of Advanced Zn‐Based Batteries

Methods for Rational Design of Advanced Zn‐Based Batteries

Cellulose‐Acetate Coating by Integrating Ester Group with Zinc Salt for Dendrite‐Free Zn Metal Anodes

Suppressed Dissolution and Enhanced Desolvation in Core–Shell MoO3@TiO2 Nanorods as a High‐Rate and Long‐Life Anode Material for Proton Batteries

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Suppressed Dissolution and Enhanced Desolvation in Core–Shell MoO₃@TiO₂ Nanorods as a High‐Rate and Long‐Life Anode Material for Proton Batteries