Robust 3D Zn Sponges Enable High-Power, Energy-Dense Alkaline Batteries

Ko, Jesse S.; Geltmacher, Andrew B.; Hopkins, Brandon J.; Rolison, Debra R.; Long, Jeffrey W.; Parker, Joseph F.

doi:10.1021/acsaem.8b01946

Cited by 77 publications

(69 citation statements)

References 32 publications

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“…Such electrode shape change over battery cycling reduces the ion and electron transport inside the electrode and results in capacity fading. To address the issue of shape change in a powder-based Zn electrode, Parker et al (21,153) proposed to fabricate monolithic Zn sponge that ensures persistent wiring throughout the nonplanar, porous architecture (Fig. 6C, left).…”

Section: Approaches For Regulating Morphology Of Metal Electrodepositsmentioning

confidence: 99%

Controlling electrochemical growth of metallic zinc electrodes: Toward affordable rechargeable energy storage systems

2021

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Scalable approaches for precisely manipulating the growth of crystals are of broad-based science and technological interest. New research interests have reemerged in a subgroup of these phenomena—electrochemical growth of metals in battery anodes. In this Review, the geometry of the building blocks and their mode of assembly are defined as key descriptors to categorize deposition morphologies. To control Zn electrodeposit morphology, we consider fundamental electrokinetic principles and the associated critical issues. It is found that the solid-electrolyte interphase (SEI) formed on Zn has a similarly strong influence as for alkali metals at low current regimes, characterized by a moss-like morphology. Another key conclusion is that the unique crystal structure of Zn, featuring high anisotropy facets resulting from the hexagonal close-packed lattice with a c/a ratio of 1.85, imposes predominant influences on its growth. In our view, precisely regulating the SEI and the crystallographic features of the Zn offers exciting opportunities that will drive transformative progress.

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Section: Approaches For Regulating Morphology Of Metal Electrodepositsmentioning

confidence: 99%

Controlling electrochemical growth of metallic zinc electrodes: Toward affordable rechargeable energy storage systems

2021

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“…[96,191] Benefiting from the synergistic mechanism between metal ions with structural water, such approach is expected to realize a better superior modification result. Until now, different combinations through tuning the metal ions species and the number of H 2 O have been developed, such as CaV 6 O 16 •3H 2 O, [192] Mg 0.34 V 2 O 5 •0.84H 2 O, [193] Co 0.247 V 2 O 5 •0.944H 2 O, [146] NaCa 0.6 V 6 O 16 •3H 2 O, [109] [104] and so on.…”

Section: Ions and H 2 O Co-intercalationmentioning

confidence: 99%

“…[ 145 ] Normally, a fast electron transport kinetic requires the electrode possesses a robust 3D conductive network with continuous electron transport pathway. [ 144,146 ] To achieve it, the rational design of cathode architecture includes the morphology control and optimized solid–liquid phase contact interface should be an important consideration. [ 147 ] Specially, the construction of cathode composite or surface coating of cathode material are expected to greatly reduce the interfacial impedance and boost the electron transport.…”

Section: Understanding Of Transport Kinetics On Multispatial Scalesmentioning

confidence: 99%

Understanding the Design Principles of Advanced Aqueous Zinc‐Ion Battery Cathodes: From Transport Kinetics to Structural Engineering, and Future Perspectives

Yong

Wang

et al. 2020

Advanced Energy Materials

269

144

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have also greatly aroused the positive exploration of alternative LIB technologies in recent years. [44] In contrast to the flammable organic electrolyte in LIBs, the aqueous one exhibits lower cost, higher safety, and especially the superior ionic conductivity, which is generally two orders of magnitude higher than that of the organic system. [9,10] All those unparalleled advantages would make the aqueous battery technologies to be the promising candidates in the future. [11] Rechargeable aqueous zinc-ion batteries (AZIBs), which is mainly composed of zinc metal anode, zinc salt-based aqueous electrolyte, and Zn 2+ host cathode, hold the great promise for energy storage applications in very recent years. [12,13] Compared with nonaqueous alkali-ion batteries, the use of cheap and high ambient stable zinc metal anode and inexpensive aqueous electrolyte with superior ionic conductivity (Figure 1a) would make such type of battery to be one of the most promising commercial candidates in the future market. [14-17] To date, extensive studies have been reported for AZIBs, and relating publications have dramatically increased especially in these two years, as shown in Figure 1b. However, the insufficient energy density seems to become the bottleneck that hinder their practical applications at current status. [4,5,18] Such issue could be ascribed to the narrow operating voltage of aqueous electrolyte, insufficient electrochemical performance of cathode materials, and Zn anode. [13,19,20] Besides, the influence of other components such as separator and collector also should be considered to some extent. [20,21] Among them, the studies of widening operating voltage of electrolyte and the optimization of other components only received less attention, which still remain at the early stage. [22,23] On the contrary, more attentions were paid to the electrochemical performance tuning of electrode materials. [24-26] Besides, considering the fixed operating voltage of Zn metal anode, the modification of cathode materials seems to provide more possibilities to effectively improve the energy density of AZIBs, owing to their rich material systems. [20,26,27] Under these considerations, the rational design of advanced cathodes is expected to be a preferential task to develop. Up to now, many types of materials have been exploited as cathode candidates and applied for AZIBs, however, those Rechargeable aqueous zinc-ion batteries (AZIBs) have attracted extensive attention and are considered to be promising energy storage devices, owing to their low cost, eco-friendliness, and high security. However, insufficient energy density has become the bottleneck for practical applications, which is greatly influenced by their cathodes and makes the exploration of high-performance cathodes still a great challenge. This review underscores the recent advances in the rational design of advanced cathodes for AZIBs. The review starts with a brief summary and evaluation of cathode material systems, as well as the introduction of proposed storage mechani...

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“…The use of thermal sintering processes (TSP) to create structured microporous Zn sponge monoliths have been studied since at least the 1960s [16][17][18][19]. The recently renewed and growing interest in secondary Zn-based batteries has led to a revival of the technology over the last decade [20][21][22][23][24][25][26][27]. In particular, research conducted by the United States Naval Research Laboratory demonstrates that 3D Zn sponge electrodes can retain their shape after deep discharge [22] and improve the cycle life of secondary Zn-based batteries [21].…”

Section: Introductionmentioning

confidence: 99%

Cold Sintering as a Cost-Effective Process to Manufacture Porous Zinc Electrodes for Rechargeable Zinc-Air Batteries

Jayasayee¹,

Clark²,

King³

et al. 2020

Processes

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Zinc-air batteries (ZABs) offer a sustainable and safe pathway to low-cost energy storage. Recent research shows that thermally-sintered porous Zn electrodes with a three-dimensional network structure can enhance the performance and lifetime of ZABs, but they are expensive and energy-intensive to manufacture. In this work, monolithic porous Zn electrodes fabricated through an efficient cold sintering process (CSP) were studied for rechargeable ZABs. Electrochemical studies and extended charge-discharge cycling show good Zn utilization with no observable performance degradation when compared to Zn foil. Post-mortem analysis after 152 h of cycling reveals that the cold-sintered electrodes retain their original structure. A techno-economic assessment of the cold sintering process confirms significant reductions in both the time and energy required to manufacture Zn electrodes compared to a comparable thermal sintering process.

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Robust 3D Zn Sponges Enable High-Power, Energy-Dense Alkaline Batteries

Cited by 77 publications

References 32 publications

Controlling electrochemical growth of metallic zinc electrodes: Toward affordable rechargeable energy storage systems

Controlling electrochemical growth of metallic zinc electrodes: Toward affordable rechargeable energy storage systems

Understanding the Design Principles of Advanced Aqueous Zinc‐Ion Battery Cathodes: From Transport Kinetics to Structural Engineering, and Future Perspectives

Cold Sintering as a Cost-Effective Process to Manufacture Porous Zinc Electrodes for Rechargeable Zinc-Air Batteries

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