scholarly journals Overview of the Structure–Dynamics–Function Relationships in Borohydrides for Use as Solid-State Electrolytes in Battery Applications

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3239
Author(s):  
Tabbetha A. Dobbins
Keyword(s):  
Solid State ◽  
Ionic Conduction ◽  
Current Knowledge ◽  
High Energy ◽  
Molecular Structures ◽  
High Energy Density ◽  
Electrochemical Window ◽  
Open Structures ◽  
Solid State Electrolytes ◽  
State Ionic

The goal of this article is to highlight crucial breakthroughs in solid-state ionic conduction in borohydrides for battery applications. Borohydrides, Mz+BxHy, form in various molecular structures, for example, nido-M+BH4; closo-M2+B10H10; closo-M2+B12H12; and planar-M6+B6H6 with M = cations such as Li+, K+, Na+, Ca2+, and Mg2+, which can participate in ionic conduction. This overview article will fully explore the phase space of boron–hydrogen chemistry in order to discuss parameters that optimize these materials as solid electrolytes for battery applications. Key properties for effective solid-state electrolytes, including ionic conduction, electrochemical window, high energy density, and resistance to dendrite formation, are also discussed. Because of their open structures (for closo-boranes) leading to rapid ionic conduction, and their ability to undergo phase transition between low conductivity and high conductivity phases, borohydrides deserve a focused discussion and further experimental efforts. One challenge that remains is the low electrochemical stability of borohydrides. This overview article highlights current knowledge and additionally recommends a path towards further computational and experimental research efforts.

Ultra-fine surface solid-state electrolytes for long cycle life all-solid-state lithium–air batteries

2018 ◽  
Vol 6 (43) ◽  
pp. 21248-21254 ◽  
Author(s):  
Sheng Wang ◽  
Jue Wang ◽  
Jingjing Liu ◽  
Hucheng Song ◽  
Yijie Liu ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
High Energy ◽  
Cycle Life ◽  
High Energy Density ◽  
Safety Issues ◽  
Long Cycle Life ◽  
Fine Surface ◽  
Solid State Electrolytes ◽  
Lithium Air Batteries

Solid-state electrolytes (SSEs) are potential candidates for developing high-energy-density and safe all-solid-state lithium (Li)-metal batteries due to the elimination of most of the safety issues encountered with liquid electrolytes.

Reducing the thickness of solid-state electrolyte membranes for high-energy lithium batteries

2021 ◽  
Author(s):  
Jingyi Wu ◽  
Lixia Yuan ◽  
Wuxing Zhang ◽  
Zhen Li ◽  
Xiaolin Xie ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Lithium Batteries ◽  
High Energy ◽  
High Energy Density ◽  
Solid State Electrolyte ◽  
Electrolyte Membranes ◽  
Solid State Batteries ◽  
Solid State Electrolytes

This review summarizes the strategies to reduce the thickness of solid-state electrolytes for the fabrication of high energy-density solid-state batteries.

scholarly journals Modification of Lithium Metal Anode and Solid-State Electrolyte Interface with a Gel Electrolyte

2020 ◽  
Author(s):  
Lawrence Renna ◽  
Francois-Guillame Blanc ◽  
Vincent Giordani
Keyword(s):  
Solid State ◽  
Room Temperature ◽  
Gel Polymer Electrolyte ◽  
High Energy ◽  
Gel Electrolyte ◽  
High Energy Density ◽  
Interfacial Resistance ◽  
Metal Anode ◽  
Solid State Electrolytes ◽  
Metal Anodes

Solid-state electrolytes are continually being explored for Li-ion batteries due to their enhanced safety and their enabling of high energy density active materials, particularly Li metal anodes. However, the interface between solid-state electrolytes and Li metal anodes are prone to high impedance due to poor contact, limiting their applicability. Introducing a thin gel polymer electrolyte interlayer to conformally coat solid electrolytes can improve the interfacial contact of Li metal anode and thus reduce the interfacial resistance. Here we used a plasticized poly(ethylene oxide)-based electrolyte with high concentrations of bis(trifluoromethane)sulfonamide lithium (LiTFSI) that show 100% amorphous character. These electrolytes show Li+ conductivity as high as σ = 2.9×10-4 S/cm at room temperature. We discovered by thermogravimetric analysis (TGA) with off-gas analysis in conjunction with nuclear magnetic resonance (NMR) spectroscopy that the electrolyte films had absorbed N-methyl-2-pyrrolidone (NMP) vapors to form a gel electrolyte. We incorporated the gel electrolyte as an interfacial modification layer between LLZO and Li metal electrodes and found a 58 times reduction in the area specific resistance (ASR) at room temperature.

Recent advances and perspectives on thin electrolytes for high-energy-density solid-state lithium batteries

2021 ◽  
Author(s):  
Xiaofei Yang ◽  
Keegan R. Adair ◽  
Xuejie Gao ◽  
Xueliang Sun
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Lithium Batteries ◽  
Recent Progress ◽  
High Energy ◽  
High Energy Density ◽  
Recent Advances ◽  
Solid State Electrolytes

This review summarizes the recent progress of thin solid-state electrolytes for high energy-density solid-state lithium batteries.

Solid-state electrolytes: Advances and perspectives

2020 ◽  
pp. 2130001
Author(s):  
Linchun He ◽  
Jin An Sam Oh ◽  
Jun Jie Jason Chua ◽  
Henghui Zhou
Keyword(s):  
Solid State ◽  
High Energy ◽  
High Energy Density ◽  
Electrochemical Performances ◽  
Energy Storage Devices ◽  
Ion Migration ◽  
Storage Devices ◽  
Li Ion ◽  
Solid State Electrolytes ◽  
Kinetics Of

All-solid-state Li batteries (ASSLiBs) that use solid-state electrolytes (SSEs) to replace liquid organic electrolytes are considered as promising next-generation energy storage devices because of their wide electrochemical potential windows, high safety, and high energy density. Therefore, ASSLiBs have attracted a lot of attention in recent years. In this review, we focus on the main challenges on the synthesis and the electrochemical properties of the SSEs including (i) crystal structures and modification of kinetics of Li-ion migration through doping technology, (ii) synthesis technologies and its effect on the electrochemical performances of the SSEs, and (iii) ambient condition stability and degration of SSEs. Finally, perspectives of future researches on the SSEs are presented.

Graphite-Based Lithium-Free 3D Hybrid Anodes for High Energy Density All-Solid-State Batteries

2021 ◽  
pp. 1831-1838
Author(s):  
Xing Xing ◽  
Yejing Li ◽  
Shen Wang ◽  
Haodong Liu ◽  
Zhaohui Wu ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Solid State Batteries ◽  
All Solid State Batteries

Single crystal Ni-rich layered cathodes enabling superior performance in all-solid-state batteries with PEO-based solid electrolytes

2021 ◽  
Author(s):  
Maoyi Yi ◽  
Li Jie ◽  
Xin-ming Fan ◽  
Maohui Bai ◽  
Zhi Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Single Crystal ◽  
Solid Electrolytes ◽  
High Energy ◽  
High Energy Density ◽  
Superior Performance ◽  
Composite Electrolytes ◽  
Solid State Batteries ◽  
All Solid State Batteries

PEO-based composite electrolytes are one of the most practical electrolytes in all-solid batteries (ASSBs). To achieve the perspective of ASSBs with high energy density, PEO based composite electrolytes should match...

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