scholarly journals Rational design and resolution of the mystery of the structure of Cyclo[18]carbon

2020 ◽  
Vol 8 (17) ◽  
pp. 8234-8237 ◽  
Author(s):  
Mohammad Z. Rahman ◽  
Tomas Edvinsson
Keyword(s):  
Solid State ◽  
Rational Design ◽  
Cryogenic Temperatures ◽  
Carbon Allotrope ◽  
Bonding Structure

A solid-state carbon allotrope cyclo[18]carbon has been isolated at cryogenic temperatures, and its bonding structure revealed.

Rational Design of Quasi Zero-Strain NCM Cathode Materials for Minimizing Volume Change Effects in All-Solid-State Batteries

2019 ◽  
Author(s):  
Florian Strauss ◽  
Lea de Biasi ◽  
A-Young Kim ◽  
Jonas Hertle ◽  
Simon Schweidler ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Cathode Materials ◽  
Rational Design ◽  
Electrode Materials ◽  
Cycling Performance ◽  
Mechanical Degradation ◽  
Volume Changes ◽  
Solid State Batteries ◽  
All Solid State Batteries

Measures to improve the cycling performance and stability of bulk-type all-solid-state batteries (SSBs) are currently being developed with the goal of substituting conventional Li-ion battery (LIB) technology. As known from liquid electrolyte based LIBs, layered oxide cathode materials undergo volume changes upon (de)lithiation, causing mechanical degradation due to particle fracture, among others. Unlike solid electrolytes, liquid electrolytes are somewhat capable of accommodating morphological changes. In SSBs, the rigidity of the materials used typically leads to adverse contact loss at the interfaces of cathode material and solid electrolyte during cycling. Hence, designing zero- or low-strain electrode materials for application in next-generation SSBs is desirable. In the present work, we report on novel Co-rich NCMs, NCM361 (60% Co) and NCM271 (70% Co), showing minor volume changes up to 4.5 V vs Li<sup>+</sup>/Li, as determined by <i>operando</i> X-ray diffraction and pressure measurements of LIB pouch and pelletized SSB cells, respectively. Both cathode materials exhibit good cycling performance when incorporated into SSB cells using argyrodite Li<sub>6</sub>PS<sub>5</sub>Cl solid electrolyte, albeit their morphology and secondary particle size have not yet been optimized.

Rational Design of Quasi Zero-Strain NCM Cathode Materials for Minimizing Volume Change Effects in All-Solid-State Batteries

2019 ◽  
Author(s):  
Florian Strauss ◽  
Lea de Biasi ◽  
A-Young Kim ◽  
Jonas Hertle ◽  
Simon Schweidler ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Cathode Materials ◽  
Rational Design ◽  
Electrode Materials ◽  
Cycling Performance ◽  
Mechanical Degradation ◽  
Volume Changes ◽  
Solid State Batteries ◽  
All Solid State Batteries

Measures to improve the cycling performance and stability of bulk-type all-solid-state batteries (SSBs) are currently being developed with the goal of substituting conventional Li-ion battery (LIB) technology. As known from liquid electrolyte based LIBs, layered oxide cathode materials undergo volume changes upon (de)lithiation, causing mechanical degradation due to particle fracture, among others. Unlike solid electrolytes, liquid electrolytes are somewhat capable of accommodating morphological changes. In SSBs, the rigidity of the materials used typically leads to adverse contact loss at the interfaces of cathode material and solid electrolyte during cycling. Hence, designing zero- or low-strain electrode materials for application in next-generation SSBs is desirable. In the present work, we report on novel Co-rich NCMs, NCM361 (60% Co) and NCM271 (70% Co), showing minor volume changes up to 4.5 V vs Li<sup>+</sup>/Li, as determined by <i>operando</i> X-ray diffraction and pressure measurements of LIB pouch and pelletized SSB cells, respectively. Both cathode materials exhibit good cycling performance when incorporated into SSB cells using argyrodite Li<sub>6</sub>PS<sub>5</sub>Cl solid electrolyte, albeit their morphology and secondary particle size have not yet been optimized.

Operando Visualization of Morphological Dynamics in All-Solid-State Batteries

2019 ◽  
Author(s):  
Xiaohan Wu ◽  
Juliette Billaud ◽  
Iwan Jerjen ◽  
Federica Marone ◽  
Yuya Ishihara ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolytes ◽  
Rational Design ◽  
Morphological Evolution ◽  
Active Material ◽  
Composite Layer ◽  
Transference Number ◽  
Thermal Stabilities ◽  
Solid State Batteries ◽  
All Solid State Batteries

<div> <div> <div> <p>All-solid-state batteries are considered as attractive options for next-generation energy storage owing to the favourable properties (unit transference number and thermal stabilities) of solid electrolytes. However, there are also serious concerns about mechanical deformation of solid electrolytes leading to the degradation of the battery performance. Therefore, understanding the mechanism underlying the electro-mechanical properties in SSBs are essentially important. Here, we show three-dimensional and time-resolved measurements of an all-solid-state cell using synchrotron radiation x-ray tomographic microscopy. We could clearly observe the gradient of the electrochemical reaction and the morphological evolution in the composite layer. Volume expansion/compression of the active material (Sn) was strongly oriented along the thickness of the electrode. While this results in significant deformation (cracking) in the solid electrolyte region, we also find organized cracking patterns depending on the particle size and their arrangements. This study based on operando visualization therefore opens the door towards rational design of particles and electrode morphology for all-solid-state batteries. </p> </div> </div> </div>

Rational design of a synthetic strategy, carburizing approach and pore-forming pattern to unlock the cycle reversibility and rate capability of micro-agglomerated LiMn0.8Fe0.2PO4 cathode materials

2018 ◽  
Vol 6 (22) ◽  
pp. 10395-10403 ◽  
Author(s):  
Yan Wang ◽  
Cheng-Yu Wu ◽  
Hao Yang ◽  
Jenq-Gong Duh
Keyword(s):  
Solid State ◽  
Cathode Materials ◽  
Rational Design ◽  
Rate Capability ◽  
Solid State Method ◽  
Synthetic Strategy ◽  
State Method ◽  
Carbon Network

A uniform 3D interconnected conductive carbon network modified LiMn0.8Fe0.2PO4 micro agglomerate was synthesized via three-step solid-state method combined with three-step carburizing and two-step pore-forming.

Rational Design of Hierarchical CoS2/CuCo2S4 for Three-dimensional All-Solid-State Hybrid Supercapacitors with High Energy Density, Rate Efficiency and Operational Stability

2021 ◽  
Author(s):  
Yogesh Kumar Sonia ◽  
Mahesh Kumar Paliwal ◽  
Sumanta Kumar Meher
Keyword(s):  
Solid State ◽  
Rational Design ◽  
Three Dimensional ◽  
High Energy ◽  
High Energy Density ◽  
Superior Performance ◽  
Exchange Method ◽  
Hybrid Supercapacitors ◽  
Storage Energy ◽  
Density Rate

In the context to develop superior-performance all-solid-state hybrid supercapacitor devices, with excellent charge storage, energy & power density, working stability and rate efficiency, herein we have adopted an anion-exchange method...

Recent Advances in the Fabrication of All-Solid-State Nanostructured TiO2-Based Z-scheme Heterojunctions for Environmental Remediation

2020 ◽  
Vol 20 (9) ◽  
pp. 5861-5873 ◽  
Author(s):  
Meiqi Du ◽  
Shengxin Cao ◽  
Xiaozhou Ye ◽  
Jianfeng Ye
Keyword(s):  
Solid State ◽  
Charge Carrier ◽  
Environmental Remediation ◽  
Rational Design ◽  
High Efficiency ◽  
Photogenerated Charge Carrier ◽  
Advantages And Disadvantages ◽  
Recent Advances ◽  
Photocatalytic System ◽  
Carrier Separation

Nanostructured TiO2-based Z-scheme heterojunctions have been widely accepted to be among the most effective photocatalysts for environmental remediation owing to their broadened light absorbance, high efficiency of photogenerated charge carrier separation, and well-preserved strong oxidation and reduction capability. In this review, we will first introduce the photogenerated charge carrier transportation mechanism of three different types of Z-scheme heterojunction systems, namely, liquid-phase Z-scheme photocatalytic system, all-solid-state indirect Z-scheme photocatalytic system, and all-solid-state direct Z-scheme photocatalytic system. Subsequently, we will describe the recent advances toward the rational design and fabrication of all-solid-state nanostructured TiO2-based Z-scheme heterojunctions. The applications of the thus-constructed all-solid-state nanostructured TiO2-based Z-scheme heterojunctions in the degradation of volatile organic compounds, removal of waste water organic pollutants, and upgradation of greenhouse gas CO2 will then be presented one by one. Finally, the advantages and disadvantages of all-solid-state nanostructured TiO2-based Z-scheme heterojunction for photocatalytic environmental remediation will be briefly discussed, and the direction of future development will be prospected as well.

scholarly journals Towards the Commercialization of the All-Solid-State Li-ion Battery: Local Bonding Structure and the Reversibility of Sheet-Style Si-PAN Anodes

2020 ◽  
Vol 167 (6) ◽  
pp. 060522
Author(s):  
Nathan Arthur Dunlap ◽  
Jongbeom Kim ◽  
Harvey Guthery ◽  
Chun-Sheng Jiang ◽  
Ian Morrissey ◽  
...  
Keyword(s):  
Solid State ◽  
Li Ion Battery ◽  
Bonding Structure ◽  
Local Bonding ◽  
Li Ion

Rational Design of Charge-Transfer Interactions in Halogen-Bonded Co-crystals toward Versatile Solid-State Optoelectronics

2015 ◽  
Vol 137 (34) ◽  
pp. 11038-11046 ◽  
Author(s):  
Weigang Zhu ◽  
Renhui Zheng ◽  
Yonggang Zhen ◽  
Zhenyi Yu ◽  
Huanli Dong ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Rational Design
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