Sub-Micrometer Active Material Particle Synthesis for Solid Dispersion Lithium-Ion Redox Flow Batteries

2016 ◽  
Vol 1 (5) ◽  
pp. 976-980 ◽  
Author(s):  
Jan Winsberg ◽  
Christian Stolze ◽  
Simon Muench ◽  
Ferenc Liedl ◽  
Martin D. Hager ◽  
...  

2019 ◽  
Vol 11 (19) ◽  
pp. 5229
Author(s):  
Julian Marius Müller ◽  
Raphael Kunderer

Battery technologies represent a highly relevant field that is undergoing conversions in the context of, for instance, battery electric vehicles or stationary power storage for renewable energies. Currently, lithium-ion batteries represent the predominant technology that has, however, a considerable environmental impact that could hinder the emergence of sustainable energy systems. Driven by these conversions, several authors claim that potentially disruptive technologies could occur. The concept of disruptive innovation has been highly regarded in research and practice, but has only been successfully regarded from an ex-post perspective. However, without the possibility to establish ex-ante predictions of disruptive innovation, several authors disregard the concept of having significant relevance for practice. In response to this research gap, the present paper attempts to establish an ex-ante prediction of potential disruptive innovation. The method is based on the disruption hazard model by Sood and Tellis, testing seven hypotheses regarding a potential disruption hazard of redox-flow batteries towards lithium-ion batteries. The paper finds that redox-flow batteries could represent a disruptive technology, but this evaluation is limited to an expert evaluation. The authors discuss this finding, as the technical characteristics of redox-flow batteries support its role as a potential disruptive innovation, concluding with implications, limitations as well as suggestions for future research.


2017 ◽  
Vol 56 (6) ◽  
pp. 1595-1599 ◽  
Author(s):  
Sean E. Doris ◽  
Ashleigh L. Ward ◽  
Artem Baskin ◽  
Peter D. Frischmann ◽  
Nagarjuna Gavvalapalli ◽  
...  

ChemSusChem ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2142-2159 ◽  
Author(s):  
Thuan‐Nguyen Pham‐Truong ◽  
Qing Wang ◽  
Jalal Ghilane ◽  
Hyacinthe Randriamahazaka

2021 ◽  
Author(s):  
Jelte Steen ◽  
Jules Nuismer ◽  
Vytautas Eiva ◽  
Albert Wiglema ◽  
Nicolas Daub ◽  
...  

Redox-active organic molecules are promising charge-storage materials for redox-flow batteries (RFBs), but material crossover between posolyte/negolyte and chemical degradation are limiting factors in the performance of all-organic RFBs. We demonstrate that the bipolar electrochemistry of 1,2,4-benzotriazin-4-yl (Blatter) radicals allows construction of batteries with symmetric electrolyte composition. Cyclic voltammetry shows that these radicals retain reversible bipolar electrochemistry also in the presence of water. The redox potentials of derivatives with a C(3)-CF3 substituent are least affected by water and, moreover, these compounds show >90% capacity retention after charge/discharge cycling in a static H-cell for seven days (ca. 100 cycles). Testing these materials in a flow regime at 0.1 M concentration of active material confirmed the high cycling stability under conditions relevant for RFB operation, and demonstrated that polarity inversion in a symmetric flow battery may be used to rebalance the cell. Chemical synthesis provides insight in the nature of the charged species by spectroscopy and (for the oxidized state) X-ray crystallography. The stability of these compounds in all three states of charge highlights the potential for application in symmetric organic redox-flow batteries.


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