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Heterogeneous atoms substitution is an efficient method for promoting Li+ storage of transition metal oxides. Herein, a series of Fe‐substituted MnO solid solutions with different Fe contents are synthesized by a feasible solid‐phase method. The synergistic effects between heterogeneous atoms and rich vacancies are synchronously obtained, which hold distinctive electronic structures and substantial...
The investigation of carbonaceous‐based anode materials will promote the fast application of low‐cost potassium‐ion batteries (PIBs). Here a nitrogen and oxygen co‐doped yolk‐shell carbon sphere (NO‐YS‐CS) is constructed as anode material for K‐ion storage. The novel architecture, featuring with developed porous structure and high surface specific area, is beneficial to achieving excellent electrochemical...
2D layered Sn‐based materials have attracted enormous attention due to their remarkable performance in sodium‐ion batteries. Nevertheless, this promising candidate involves a complex Na+‐storage process with multistep conversion‐alloying reactions, which induces the uneven dispersion of heterogeneous intermediate accompanied by severe agglomeration of metallic Sn0, inescapably resulting in poor reaction...
The slow kinetics and poor structural stability prevent transition metal selenides from being widely used in sodium‐ion batteries (SIBs) and potassium‐ion batteries (PIBs). Herein, the “flower‐like” porous carbon anchored by Zn‐Mn binary selenides (ZMS@FC) composites are fabricated by selenizing the modified hierarchically metal‐organic frameworks. The 2D conductive hierarchically flakes’ abundant...
The growth of ultrathin 1D inorganic nanomaterials with controlled diameters remains challenging by current synthetic approaches. A polymer chain templated method is developed to synthesize ultrathin Bi2O2CO3 nanotubes. This formation of nanotubes is a consequence of registry between the electrostatic absorption of functional groups on polymer template and the growth habit of Bi2O2CO3. The bulk bismuth...
Potassium‐ion batteries (PIBs) have been regarded as a competitive alternative for lithium‐ion batteries, owing to the natural abundance, low cost, and similar rocking‐chair working mechanism of potassium element. However, it is challenging to simultaneously prepare suitable potassium ion anode materials of low voltage plateau, high capacity, and long cycle life. In this work, onion‐like soft carbon...
The high cost and scarcity of lithium resources have prompted researchers to seek alternatives to lithium‐ion batteries. Among emerging “Beyond Lithium” batteries, rechargeable aluminum‐ion batteries (AIBs) are yet another attractive electrochemical storage device due to their high specific capacity and the abundance of aluminum. Although the current electrochemical performance of nonaqueous AIBs...
The use and storage of renewable and clean energy has become an important trend due to resource depletion, environmental pollution, and the rising price of refined fossil fuels. Confined by the limited resource and uneven distribution of lithium, non‐lithium‐ion batteries have become a new focus for energy storage. The six‐membered‐ring (SMR) is a common structural unit for numerous material systems...
Non‐Lithium‐Ion Batteries
Two‐dimensional six‐membered‐ring inorganic materials are ideal candidates for non‐lithium‐ion battery anodes due to their excellent properties. In article number 2107868, Feng Li and co‐workers summarize the theoretical research of this field in recent years. A series of anodes with high capacity and low ion diffusion barrier are also screened, and the challenges and potential...
The application of nitrogen‐doped porous carbon for sodium‐ion batteries (SIBs) has attracted tremendous attention. Herein, a series of edge‐nitrogen enriched porous carbon nanosheets (ENPCNs) are synthesized by annealing g‐C3N4 and glucose in a sealed graphite crucible at different temperatures (T = 700, 800, and 900 °C). Surprisingly, under the closed thermal treatment condition, the ENPCNs‐T possess...
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