The dimer generated after trapping of O* by β−carotene chelate Ni4+ weakens Ni 3d−O 2p orbital hybridization, alleviating charge compensation behavior of oxygen anions, so as to delay the phase transition of charged Ni−rich cathodes. Therefore, crosstalk reactions are suppressed. Eventually, the TR−trigger and maximum temperature of pouch cell are...

The polyacrylonitrile (PAN) additive strategy provides an effective approach for achieving efficient and stable perovskite solar cells (PSCs) at low temperatures. The PAN can effectively increase dielectric properties, passivate the defects, and decrease phase transition temperature of perovskite at low temperatures. Therefore, the PAN-modified PSC...

This work highlights a new design concept of bottom-up targeted assembly, to unlock robust Ni-MnO2−xFx host for aqueous dual-ion storage. The interlayer reinforcement and interface repair can coordinate to regulate the Gibbs free energy of MnO2 host, thus shielding the runaway “layer-to-spinel” transition and inhibiting the cathode dissolution. Wide-temperature...

The article focuses on the ammonium ion energy storage with a discussion on the charge storage mechanism of the ammonium ion in different host materials. Further, the performance of the electrode materials and the electrolytes that are used in the application of ammonium ion energy storage is elucidated. Abstract Aqueous batteries using non-metallic...

Electrolyte additives are key for better secondary sodium battery performance and durability, revolving around safety and stability. Advanced additives with different functional groups help tackle challenges like expensive salts, unstable electrodes, and isolated functions. Three key aspects for better additives are: compatible functional groups,...

A quasi-epitaxial growth strategy utilizing a pre-coated (BA)2PbI4 2D perovskite film as a template facilitates FAPbI3 perovskite crystallization. The FAPbI3 (100) plane inherits the strong out-of-plane orientation of 2D perovskite. Owing to the extrusion of BA+ cation from the template, 2D perovskite gradually vanishes at the optimum concentration,...