Single-phased white light-emitting KCaGd(PO₄)₂:Eu²⁺,Tb³⁺,Mn²⁺ phosphors were synthesized by a solid state reaction. By changing the doping contents of Eu²⁺, Tb³⁺ and Mn²⁺, the emission hue could be precisely controlled via the energy transfer mechanism. The structure refinement, luminescence properties as well as their thermal quenching and energy transfer mechanism were firstly investigated. The mechanism of transferring energy between Eu²⁺, Mn²⁺ and Tb³⁺ ions was also discussed in this study. The optimal-composition for white-light is K(Ca_0.89Eu_0.01Mn_0.1)(Gd_0.9Tb_0.1)(PO₄)₂, which gives the CIE coordinates of (0.2984, 0.3171). These results indicate that the KCaGd(PO₄)₂:Eu²⁺,Mn²⁺,Tb³⁺ phosphor could be a promising single-composition phosphor for applications involving white-light NUV LEDs.

Owing to their high energy density and low cost, zinc‐ion batteries (ZIBs) are gaining much in popularity. However, in practice, issues with hydrogen evolution, zinc dendrite development, corrosion, and passivation persist. Such drawbacks prove difficult to eradicate completely. To address these difficulties, many techniques have been proposed including inhibitor addition, artificial SEI, and Zn electrode modification. As a result, some researchers believe that using non‐proton donor electrolytes or nonaqueous electrolytes can fundamentally solve these problems. Herein, the efforts to apply nonaqueous electrolytes such as organic electrolytes, room‐temperature ionic liquids, and deep‐eutectic solvents to ZIBs are described. An understanding of the mechanisms of nonaqueous ZIBs (NZIBs) regarding zinc plating/stripping and intercalation/deintercalation is also highlighted. Importantly, research gaps are identified in order to pave the way for future study. In addition, an attempt is made to offer a viewpoint on critical topics as well as a benchmarking and enhancement of NZIB technologies.