Multifunctional SEI-like structure coating stabilizing Zn anodes at a large current and capacity

Chen, Aosai; Zhao, Chenyang; Gao, Jiaze; Guo, Zhikun; Lu, Xiao‐Bing; Zhang, Jiachi; Liu, Zeping; Wang, Ming; Liu, Nannan; Fan, Longlong; Zhang, Yu; Jiang, Bo

doi:10.1039/d2ee02931f

Cited by 162 publications

(87 citation statements)

References 62 publications

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“…2a). The inhibition of hydrogen evolution reaction (HER) is mainly due to the reduction of direct contact between water molecules in the electrolyte and zinc anode by 3D MXene array interface coating [35][36][37]. In addition, the Tafel spectra shows that the 3D MXene array@Zn has a higher corrosion potential of − 0.846 V than that of pure Zn anode (− 0.851 V), indicating a lower corrosion reactivity and a lower corrosion rate (Fig.…”

Section: Zn Plating/stripping Performance Of 3d Mxene Array@zn Anodementioning

confidence: 99%

3D Artificial Array Interface Engineering Enabling Dendrite-Free Stable Zn Metal Anode

Ruan

Ouyang

et al. 2023

Nano-Micro Lett.

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The ripple effect induced by uncontrollable Zn deposition is considered as the Achilles heel for developing high-performance aqueous Zn-ion batteries. For this problem, this work reports a design concept of 3D artificial array interface engineering to achieve volume stress elimination, preferred orientation growth and dendrite-free stable Zn metal anode. The mechanism of MXene array interface on modulating the growth kinetics and deposition behavior of Zn atoms were firstly disclosed on the multi-scale level, including the in-situ optical microscopy and transient simulation at the mesoscopic scale, in-situ Raman spectroscopy and in-situ X-ray diffraction at the microscopic scale, as well as density functional theory calculation at the atomic scale. As indicated by the electrochemical performance tests, such engineered electrode exhibits the comprehensive enhancements not only in the resistance of corrosion and hydrogen evolution, but also the rate capability and cyclic stability. High-rate performance (20 mA cm−2) and durable cycle lifespan (1350 h at 0.5 mA cm−2, 1500 h at 1 mA cm−2 and 800 h at 5 mA cm−2) can be realized. Moreover, the improvement of rate capability (214.1 mAh g−1 obtained at 10 A g−1) and cyclic stability also can be demonstrated in the case of 3D MXene array@Zn/VO2 battery. Beyond the previous 2D closed interface engineering, this research offers a unique 3D open array interface engineering to stabilize Zn metal anode, the controllable Zn deposition mechanism revealed is also expected to deepen the fundamental of rechargeable batteries including but not limited to aqueous Zn metal batteries.

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Section: Zn Plating/stripping Performance Of 3d Mxene Array@zn Anodementioning

confidence: 99%

3D Artificial Array Interface Engineering Enabling Dendrite-Free Stable Zn Metal Anode

Ruan

Ouyang

et al. 2023

Nano-Micro Lett.

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“…For instance, cationic additives such as TBA + , Li + , and Sc 3+ were introduced into electrolytes, in which cations preferentially adsorbed on the Zn anode surface, providing a shielding effect to homogenize electric field and suppress dendrite growth [ 20 – 22 ]. Building an artificial solid electrolyte interphase (SEI) has been considered as another effective remedy to alleviate side reactions [ 23 – 27 ]. For example, various SEIs including COFs, poly(vinyl butyral), and zinc silicate have been coated on Zn anode surface to block the direct chemical or electrochemical reactions between Zn anode and electrolyte [ 28 – 30 ].…”

Section: Introductionmentioning

confidence: 99%

Trace Amounts of Triple-Functional Additives Enable Reversible Aqueous Zinc-Ion Batteries from a Comprehensive Perspective

et al. 2023

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Although their cost-effectiveness and intrinsic safety, aqueous zinc-ion batteries suffer from notorious side reactions including hydrogen evolution reaction, Zn corrosion and passivation, and Zn dendrite formation on the anode. Despite numerous strategies to alleviate these side reactions have been demonstrated, they can only provide limited performance improvement from a single aspect. Herein, a triple-functional additive with trace amounts, ammonium hydroxide, was demonstrated to comprehensively protect zinc anodes. The results show that the shift of electrolyte pH from 4.1 to 5.2 lowers the HER potential and encourages the in situ formation of a uniform ZHS-based solid electrolyte interphase on Zn anodes. Moreover, cationic NH4+ can preferentially adsorb on the Zn anode surface to shield the “tip effect” and homogenize the electric field. Benefitting from this comprehensive protection, dendrite-free Zn deposition and highly reversible Zn plating/stripping behaviors were realized. Besides, improved electrochemical performances can also be achieved in Zn//MnO2 full cells by taking the advantages of this triple-functional additive. This work provides a new strategy for stabilizing Zn anodes from a comprehensive perspective.

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“…Rechargeable aqueous zinc ion batteries (AZIBs) have attracted wide attention owing to their simple preparation process, abundant zinc metal resources, high theoretical capacity, intrinsic safety, and remarkable reversibility in aqueous electrolytes. [6][7][8][9][10][11][12] Mn-based materials, [13][14][15][16] Prussian blue analogues (PBAs), [17][18][19] V-based materials, [20][21][22][23][24] and organic-based materials [25][26][27] are promising candidates for AZIB cathodes, in which manganese oxides have been considered as the energy storage materials with the most potential. Due to the high working voltage, large specific capacity, abundant resource reserves, and unique layered structure, δ-MnO 2 has been widely investigated as a cathode for AZIBs.…”

Section: Introductionmentioning

confidence: 99%

Electron transmission matrix and anion regulation strategy-derived oxygen-deficient δ-MnO₂ for a high-rate and long-life aqueous zinc-ion battery

et al. 2023

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Multifunctional SEI-like structure coating stabilizing Zn anodes at a large current and capacity

Abstract: The development and application of aqueous zinc-ion batteries still face some obstacles, such as dendrite growth and side reactions triggered by active water. Here, we constructed PVA@SR-ZnMoO4 multifunctional coating on...

Cited by 162 publications

References 62 publications

3D Artificial Array Interface Engineering Enabling Dendrite-Free Stable Zn Metal Anode

3D Artificial Array Interface Engineering Enabling Dendrite-Free Stable Zn Metal Anode

Trace Amounts of Triple-Functional Additives Enable Reversible Aqueous Zinc-Ion Batteries from a Comprehensive Perspective

Electron transmission matrix and anion regulation strategy-derived oxygen-deficient δ-MnO₂ for a high-rate and long-life aqueous zinc-ion battery

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Multifunctional SEI-like structure coating stabilizing Zn anodes at a large current and capacity

Abstract: The development and application of aqueous zinc-ion batteries still face some obstacles, such as dendrite growth and side reactions triggered by active water. Here, we constructed PVA@SR-ZnMoO4 multifunctional coating on...

Cited by 162 publications

References 62 publications

3D Artificial Array Interface Engineering Enabling Dendrite-Free Stable Zn Metal Anode

3D Artificial Array Interface Engineering Enabling Dendrite-Free Stable Zn Metal Anode

Trace Amounts of Triple-Functional Additives Enable Reversible Aqueous Zinc-Ion Batteries from a Comprehensive Perspective

Electron transmission matrix and anion regulation strategy-derived oxygen-deficient δ-MnO2 for a high-rate and long-life aqueous zinc-ion battery

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Electron transmission matrix and anion regulation strategy-derived oxygen-deficient δ-MnO₂ for a high-rate and long-life aqueous zinc-ion battery