Polysulfide-iodide redox flow batteries attract great attention, while restricting by the limited energy efficiency and power density. Here, authors introduce single Co atoms into the defective MoS2, endowing a fast transformation of S2−/Sx 2− and I−/I3 −, thus leading to good battery performance.
The polysulfide/iodide redox flow battery (PSIB) achieved one of the highest energy densities for all-liquid aqueous RFBs (43.1 W h L −1Catholyte+Anolyte) with high coulombic efficiency (93–95%) and stable cycle life.
Previous work on iodine-based flow batteries includes metal anodes such as Zn, (16) Fe, (17) Li, (18) Al, (19) and Mg, (20) among others. (21,22) These anodes have been proposed with I 2 immobilized in microporous carbon to prevent I 3– from migrating to the anolyte.
In this study, we present the electrochemical performance of hydrogen and iodine half-reactions representing a H 2 –I 2 redox flow battery. We also validate our findings in a nonoptimized H 2 –I 2 redox flow battery, demonstrating its potential for decoupled energy and power in long-duration energy storage.
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Furthermore, this chemistry can be further extended to multivalent ion-based battery systems. As demonstration models, Ca-based and Al-based aqueous sulfur–iodine …
The battery was described in “ Synergy of single atoms and sulfur vacancies for advanced polysulfide–iodide redox flow battery,” published in Nature Communications.
Abstract Redox flow batteries (RFBs) have been limited by low energy density and high cost. Here, we employ highly-soluble, inexpensive and reversible polysulfide and iodide …
Aqueous sulfur-based redox flow batteries (SRFBs) are promising candidates for large-scale energy storage, yet the gap between the required and currently achievable …
However, their applications in lithium redox flow batteries suffer from severe shuttle of iodine and PS and thus require the use of ion‐selective ceramic membrane for stable …
A conductive, low-melting-point and healable sulfur iodide material aids the practical realization of solid-state Li–S batteries, which have high theoretical energy densities and show …
Aqueous redox flow batteries (RFBs) incorporating polysulfide/iodide chemistries have received considerable attention due to their safety, high scalability, and cost …
In this review, a systematic summary of recent advances in aqueous iodine-based static batteries (AISBs) is presented. It begins with an introduction to iodine''s fundamental …
Polysulfide-iodide redox flow batteries attract great attention, while restricting by the limited energy efficiency and power density. Here, authors introduce single Co atoms into …
However, their applications in lithium redox flow batteries suffer from severe shuttle of iodine and PS and thus require the use of an ion-selective ceramic membrane for …
The decoupled power and energy output of a redox flow battery (RFB) offers a key advantage in long-duration energy storage, crucial for a successful energy transition. …
Abstract The issue of polyiodide crossover at an iodine cathode significantly diminishes the efficiency and practicality of aqueous zinc–iodine flow batteries (ZIFBs). To address this …
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