In contrast with the classic ion intercalation, halogens have been coupled with metal anodes in a single cell to develop novel rechargeable batteries on the basis of the extrinsic redox reactions. Since the commercial introduction of lithium-iodine primary battery in 1972, the iodine-based batteries...
interfacial sulfur redox reactions (liquid–liquid–solid interconversion between soluble lithium polysulfide with different chain lengths and insoluble lithium sulfides in liquid‐electrolyte Li–S batteries and direct solid–solid conversion between sulfur and Li2S in all‐solid‐state Li–S batteries)....
The complex interplay and only partial understanding of the multi-step phase transitions and reaction kinetics of redox processes in lithium–sulfur batteries are the main stumbling blocks that hinder the advancement and broad deployment of this electroc
Meanwhile, the shape of the pores can change the diffusion of electrolytes and the speed of electrochemical reactions in the electrode [326,327]. Porous materials with architected pore structures can potentially improve the performance of flow batteries. These materials can be engineered to have high...
Hydrogen bromine redox flow batteriesNumerical simulationThree-dimensionalCrossoverA three-dimensional (3-D) model for H 2 /Br 2 redox flow batteries (RFBs) is developed by rigorously accounting for the redox reactions of hydrogen and bromine species, and the resulting species and charge transport ...
In summary, we have demonstrated an innovative strategy for the efficient protection of lithium polysulfides towards high-performance Li–S batteries by enabling redox reactions of small organic compounds. Commercialized AQ molecule has been investigated as the effective polysulfides-confining agent, which ...
sodium batteriesIn article number 1901188, Yong‐Sheng Hu, Qing Wang and co‐workers report a flow battery based on the redox‐targeting reactions of methylphenothiazine and fluorenone with Na3V2(PO4)3 as the sole capacity booster in both cathodic and anodic compartments. Driven by the Nernstian...
Li has been introduced into layered oxide Na0.9Ni0.3Mn0.4Fe0.3O2to mitigate the Ni3+Jahn–Teller distortion and prevent the loss of active transition-metal ions34. Boron has also been studied as a cathode dopant for Li-ion and Na-ion batteries. In the previous work by Vaalma et al., ...
Realizing reversible reduction-oxidation (redox) reactions of lattice oxygen in batteries is a promising way to improve the energy and power density. However, conventional oxygen absorption spectroscopy fails to distinguish the critical oxygen chemistry in oxide-based battery electrodes. Therefore, high-...
Many spontaneously occurring chemical reactions liberate electrical energy, and some of these reactions are used in batteries and fuel cells to produce electric power. Conversely, electric current can be utilized to bring about many chemical reactions that do not occur spontaneously. In the process ...