scholarly journals A universal strategy towards high–energy aqueous multivalent–ion batteries

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xiao Tang ◽  
Dong Zhou ◽  
Bao Zhang ◽  
Shijian Wang ◽  
Peng Li ◽  
...  

AbstractRechargeable multivalent metal (e.g., Ca, Mg or, Al) batteries are ideal candidates for large–scale electrochemical energy storage due to their intrinsic low cost. However, their practical application is hampered by the low electrochemical reversibility, dendrite growth at the metal anodes, sluggish multivalent–ion kinetics in metal oxide cathodes and, poor electrode compatibility with non–aqueous organic–based electrolytes. To circumvent these issues, here we report various aqueous multivalent–ion batteries comprising of concentrated aqueous gel electrolytes, sulfur–containing anodes and, high-voltage metal oxide cathodes as alternative systems to the non–aqueous multivalent metal batteries. This rationally designed aqueous battery chemistry enables satisfactory specific energy, favorable reversibility and improved safety. As a demonstration model, we report a room–temperature calcium-ion/sulfur| |metal oxide full cell with a specific energy of 110 Wh kg–1 and remarkable cycling stability. Molecular dynamics modeling and experimental investigations reveal that the side reactions could be significantly restrained through the suppressed water activity and formation of a protective inorganic solid electrolyte interphase. The unique redox chemistry of the multivalent–ion system is also demonstrated for aqueous magnesium–ion/sulfur||metal oxide and aluminum–ion/sulfur||metal oxide full cells.

2021 ◽  
Author(s):  
Xiao Tang ◽  
Dong Zhou ◽  
Bao Zhang ◽  
Shijian Wang ◽  
Peng Li ◽  
...  

Abstract Non–aqueous rechargeable multivalent metal (Ca, Mg, Al, etc.) batteries are promising for large–scale energy storage due to their low cost. However, their practical applications face formidable challenges owing to low electrochemical reversibility and dendrite growth of multivalent metal anodes, sluggish kinetics of multivalent ion in metal oxide cathodes, and poor electrode compatibility of flammable organic electrolytes. To overcome these intrinsic hurdles, we develop aqueous multivalent ion batteries to replace the prevailing non–aqueous multivalent metal batteries by using wide–window super–concentrated aqueous gel electrolytes, the versatile high–capacity sulfur anodes, and high–voltage metal oxide cathodes. This rationally designed aqueous battery chemistry enables the long–lasting multivalent ion batteries featured with increased high energy density, reversibility and safety. As a demonstration model, a calcium ion−sulfur||metal oxide full cell exhibited a high energy density of 110 Wh kg–1 with outstanding cycling stability. Molecular dynamics modelling and experimental investigations revealed that the side reactions could be significantly restrained through the suppressed water activity and formation of protective inorganic solid electrolyte interphase in the aqueous gel electrolyte. The unique redox chemistry has also been successfully extended to aqueous magnesium ion and aluminum ion−sulfur||metal oxide batteries. This work will boost aqueous multivalent ion batteries for low−cost large–scale energy storage.


2022 ◽  
Author(s):  
Caihong Shi ◽  
Liguang Wang ◽  
Xian Chen ◽  
Jun Li ◽  
Shun Wang ◽  
...  

As the most promising alternate for lithium-ion batteries (LIBs), sodium-ion batteries (SIBs) still face many issues that hinder their large-scale commercialization. Layered transition metal oxide cathodes have attracted widespread attention...


Batteries ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 3
Author(s):  
Lauren F. O’Donnell ◽  
Steven G. Greenbaum

The lithium ion battery, with its high energy density and low reduction potential, continues to enchant researchers and dominate the landscape of energy storage systems development. However, the demands of technology in modern society have begun to reveal limitations of the lithium energy revolution. A combination of safety concerns, strained natural resources and geopolitics have inspired the search for alternative energy storage and delivery platforms. Traditional liquid electrolytes prove precarious in large scale schemes due to the propensity for leakage, the potential for side reactions and their corrosive nature. Alternative electrolytic materials in the form of solid inorganic ion conductors and solid polymer matrices offer new possibilities for all solid state batteries. In addition to the engineering of novel electrolyte materials, there is the opportunity to employ post-lithium chemistries. Utility of multivalent cation (Ca2+, Mg2+, Zn2+ and Al3+) transport promises a reduction in cost and increase in safety. In this review, we examine the current research focused on developing solid electrolytes using multivalent metal cation charge carriers and the outlook for their application in all solid state batteries.


Author(s):  
Swetha Pendyala ◽  
Prashanth Sridharan ◽  
Sarada Kuravi ◽  
Chand K. Jotshi ◽  
Manoj K. Ram ◽  
...  

Storage systems based on latent heat storage have high-energy storage density, which reduces the footprint of the system and the cost. However, phase change materials (PCMs) have very low thermal conductivities making them unsuitable for large-scale use without enhancing the effective thermal conductivity. In order to address the low thermal conductivity of the PCMs, macroencapsulation of PCMs is adopted as an effective technique. The macro encapsulation not only provides a self-supporting structure but also enhances the heat transfer rate. In this research, Sodium nitrate (NaNO3), a low cost PCM, was selected for thermal storage in a temperature range of 300–500°C. The PCM was encapsulated in a metal oxide cell using self-assembly reactions, hydrolysis, and simultaneous chemical oxidation at various temperatures. The metal oxide encapsulated PCM capsule was characterized using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The cyclic stability and thermal performance of the capsules were also studied.


2021 ◽  
pp. 2141003
Author(s):  
Jie Wu ◽  
Jingxiong Gao ◽  
Luri Bao ◽  
Yongming Wu ◽  
Lei Zhu ◽  
...  

Safe solid-state lithium metal batteries (SSLMBs) with high energy density are in great demand for electrical vehicles and large-scale energy storage systems. The interfacial challenges including large interface resistance and untoward reactions have an enormous impact on the rate performance and cycle stability of SSLMBs. Hence, in this work, plastic crystal-based materials are proposed as the interface layers to reduce the interfacial impedance and prevent side reactions between solid electrolytes and Li anode. The plastic crystal-based materials can enable in-situ solidification between solid electrolytes and Li anode and show high ion conductivity of up to [Formula: see text]10[Formula: see text] S ⋅ cm[Formula: see text], high Li ion transference number, and good chemical and electrochemical stability against Li metal, indicating they are suitable to be used as the interface layers for SSLMBs.


2017 ◽  
Vol 5 (47) ◽  
pp. 24758-24766 ◽  
Author(s):  
Feng Li ◽  
Yangyang Wang ◽  
Shilun Gao ◽  
Peiyu Hou ◽  
Lianqi Zhang

A Ni/Mn-graded surface is proposed to suppress the unwanted phase transformations and side-reactions of high-energy lithium-rich layered oxide cathodes, and thus to mitigate their capacity and voltage decay.


2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Saustin Dongmo ◽  
Julian Jakob Alexander Kreissl ◽  
Kohei Miyazaki ◽  
Takeshi Abe ◽  
Ting-Hsuan You ◽  
...  

AbstractElectrically rechargeable zinc oxygen batteries are promising energy storage devices. They appeal due to the abundance of zinc metal and their high energy density. Research on zinc oxygen batteries is currently focusing on the development of electrode materials. Since the progress is rapid and no state-of-the-art is agreed upon yet, it is difficult to benchmark their performance. This circumstance also complicates the use of the generated electrochemical data for model-based research – simulating the processes in the battery requires reliable performance data and material properties from experimental investigations. Herein we describe reproducible data on the cycling performance and durability of zinc oxygen batteries. We utilize anodes and gas diffusion electrodes (with the bifunctional catalysts Sr2CoO3Cl, Ru-Sn oxide, and Fe0.1Ni0.9Co2O4 with activated carbon) with low degradation during cycling, and present voltage data of current-dependent discharge and charge. All in all, we stimulate to reuse the data for parameter fitting in model-based work, and also to evaluate novel battery materials by preventing or minimizing side reactions with the testing protocol and setup utilized.


2017 ◽  
Vol 4 (1) ◽  
pp. 91-105 ◽  
Author(s):  
Bin Li ◽  
Jun Liu

Abstract Compared to lithium-ion batteries, redox-flow batteries have attracted widespread attention for long-duration, large-scale energy-storage applications. This review focuses on current and future directions to address one of the most significant challenges in energy storage: reducing the cost of redox-flow battery systems. A high priority is developing aqueous systems with low-cost materials and high-solubility redox chemistries. Highly water-soluble inorganic redox couples are important for developing technologies that can provide high energy densities and low-cost storage. There is also great potential to rationally design organic redox molecules and fine-tune their properties for both aqueous and non-aqueous systems. While many new concepts begin to blur the boundary between traditional batteries and redox-flow batteries, breakthroughs in identifying/developing membranes and separators and in controlling side reactions on electrode surfaces also are needed.


2020 ◽  
Vol 30 (46) ◽  
pp. 2004748
Author(s):  
Gui‐Liang Xu ◽  
Xiang Liu ◽  
Amine Daali ◽  
Rachid Amine ◽  
Zonghai Chen ◽  
...  

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