Lamella-like electrode with high Br2-entrapping capability and activity enabled by adsorption and spatial confinement effects for bromine-based flow battery

In Situ Vertically Aligned MoS2 Arrays Electrodes for Complexing Agent‐Free Bromine‐Based Flow Batteries with High Power Density and Long Lifespan

“…The interlayer spacings of both MoS 2 ‐1T and MoS 2 ‐2H on THCF were higher than the sizes of Br − (0.48 nm) and Br 2 (0.60 nm). [ 7 ] Consequently, free bromine could easily enter the interlayer of MoS 2 ‐1T and MoS 2 ‐2H, beneficial for THCF to capture free bromine (Figure 1).…”

“…[ 6 ] Recently, our group reported an electrode with excellent bromine‐entrapping capacity for zinc–bromine flow batteries (ZBFBs), which resulted from the strong adsorption and spatial confinement effects of lamella‐like porous carbon nitride nanosheets. [ 7 ] Based on this electrode, the battery self‐discharge was effectively inhibited, demonstrating a high capacity retention rate of 62.98% after a 24‐h standing measurement. Consequently, it has potential for electrodes with outstanding bromine‐entrapping capacity to construct BCA‐free Br‐FBs, overcoming the drawbacks of BCAs.…”

Cathode materials for halide-based aqueous redox flow batteries: recent progress and future perspectives

“…54 Lu et al used lamella-like porous carbon nitride nanosheets (PCNS) with adsorption and spatial confinement effects to modify cathodes for ZBRFB. 48 The large specific surface area and plentiful N-containing groups enabled PCNS with excellent adsorption capacity (Fig. 1E), which captured bromine species into the pores on the PCNS layers (Fig.…”

Development of flow battery technologies using the principles of sustainable chemistry

“…Therefore, various bromine complexing agents are introduced to inhibit the diffusion of bromine and electrode materials with high electrocatalytic activity and Br 2 -complex-entrapping capability are extensively studied. [42][43][44][45][46] Lu et al designed a multifunctional N-rich defect carbon felt-based electrode (NTCF), which not only facilitated the kinetics of Br 2 /Br À , but also induced uniform zinc deposition (Fig. 4b).…”