A high-voltage aqueous rechargeable zinc-polyaniline hybrid battery achieved by decoupling alkali–acid electrolyte

Fabrication of a Cation Exchange Membrane with Largely Reduced Anion Permeability for Advanced Aqueous K‐ion Battery in an Alkaline‐Neutral Electrolyte Decoupling System

“…More investigation is still needed to explore its reaction mechanism. Overall, the system constructed here exhibits not only high voltage comparable with previous reports, [20,22,[45][46][47][48] but also high specific capacity of 116.7 mAh g −1 (consider the mass of FeHCF) that is comparable with other reports. [49] More detailed comparison with other works are listed in Table S1, (Supporting Information).…”

“…Till now, various systems have been constructed according to this scheme, and relevant reviews have also been summarized. [19] An acid-alkaline electrolyte-decoupling Znpolyaniline (PANI) system using a commercial bipolar membrane (BPM) has been developed, which exhibited an operating window over 2.0 V. [20] A similar two-chamber configuration with Zn anode in alkaline electrolyte and LiMn 2 O 4 cathode in neutral electrolyte has also been constructed with a cation exchange membrane (CEM, represented by DuPont N117), where a discharge voltage of ≈2.3 V was realized. [21] Three-chamber systems have also been established, which consist of an alkaline chamber with Zn or quinone anode, [22] an acidic chamber with MnO 2 [23] or PbO 2 [24] cathode, and a neutral buffer chamber in the middle, where two separators of CEM and anion exchange membrane (AEM) were used.…”

Strategic catalyst modification for boosting CO2 concentration at electrode surface and easing selective CO2 reduction at higher potential

“…This makes PANI very interesting in terms of redox activity. [33][34][35][36] PANI completely dissolves in DMSO solvent, which allows uniform coating over the Bi akes when they are dispersed in the solution overnight. Moreover, PANI does not dissolve in isopropanol (IPA) or water which ensures zero leaching of PANI from Bi akes, while preparing catalyst ink in IPA or during the electrocatalytic operation.…”

Building better aqueous Zn-organic batteries

“…83 Owing to the more stable electrochemical performance and lower cost compared to most other previously reported organic electrode materials, PANI was often employed to serve as a cathode material in various Zn batteries with different configurations. [138][139][140][141][142][143] Furthermore, various strategies, including electrolyte optimization, 144,145 structural modification by copolymerization, [146][147][148] and hybridization with carbon materials, 83,149,150 have been further employed to improve the electrochemical performance of the PANI electrode in aqueous ZOBs. Nevertheless, they still suffered from low energy density derived from their limited capacities, hindering their further application.…”