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Low Coulombic efficiency, low‐capacity retention, and short cycle life are the primary challenges faced by various metal‐ion batteries due to the loss of corresponding active metal. Practically, these issues can be significantly ameliorated by compensating for the loss of active metals using pre‐metallization techniques. Herein, the state‐of‐the‐art development in various pr‐emetallization techniques...
Proton exchange membrane fuel cells (PEMFCs) are promising devices for clean power generation in fuel cell electric vehicles applications. The further request of high‐efficiency and cost competitive technology make high‐temperature proton exchange membranes utilizing phosphoric acid‐doped polybenzimidazole be favored because they can work well up to 180 °C without extra humidifier. However, they face...
2D metal‐halide perovskites have attracted intense research interest due to superior long‐term stability under ambient environments. Compared to their 3D analog, the alternate arrangement of organic and inorganic layers leads to forming a multilayer quantum well (MQW), which endows 2D perovskites with anisotropic optoelectronic properties. In addition, the spacer layer functions as a hydrophobic barrier...
Prussian blue (PB) and its analogues are recognized as promising cathodes for rechargeable batteries intended for application in low‐cost and large‐scale electric energy storage. With respect to PB cathodes, however, their intrinsic crystal regularity, vacancies, and coordinated water will lead to low specific capacity and poor rate performance, impeding their application. Herein, nanocubic porous...
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