As the desired sulfur host of lithium-sulfur battery, the strong polarity and fast electron migration capability are indispensable for achieving effective adsorption and conversion of lithium polysulfides (LiPSs), that is, restrict-ing the shuttle effect. Herein a porous microdisk Ti4O7/TiN/C heterojunction with strong polar N-Ti-O covalent bonds i...
As the desired sulfur host of lithium-sulfur battery, the strong polarity and fast electron migration capability are indispensable for achieving effective adsorption and conversion of lithium polysulfides (LiPSs), that is, restrict-ing the shuttle effect. Herein a porous microdisk Ti4O7/TiN/C heterojunction with strong polar N-Ti-O covalent bonds i...
Lithium-rich layered oxides (LLOs) are considered as the most promising candidate for the cathode of high energy density lithium-ion batteries. However, the poor cycle stability especially under high temperature is hindering its practical applications. Herein, a full concentration gradient LLO with spinel modification is designed and prepared. This...
Lithium-rich layered oxides (LLOs) are considered as the most promising candidate for the cathode of high energy density lithium-ion batteries. However, the poor cycle stability especially under high temperature is hindering its practical applications. Herein, a full concentration gradient LLO with spinel modification is designed and prepared. This...
Co3O4 is considered a promising anode candidate for lithium ion batteries (LIBs) owing to its high theoretical capacitance. However, the electrochemical properties of bare Co3O4 for LIBs remain seriously limited by poor electronic conductivity and large volume expansion. Herein, carbon-coated porous Co3O4 polyhedrons with (220) facets are fabricate...
Co3O4 is considered a promising anode candidate for lithium ion batteries (LIBs) owing to its high theoretical capacitance. However, the electrochemical properties of bare Co3O4 for LIBs remain seriously limited by poor electronic conductivity and large volume expansion. Herein, carbon-coated porous Co3O4 polyhedrons with (220) facets are fabricate...
Three-dimensionally ordered macroporous (3DOM) CoFe2O4 (CFO) catalysts were prepared by using the colloidal crystal templating method to be used as bifunctional catalysts of Li-O2 battery positive electrodes. In order to study the relationship between the macropore diameter and charge/discharge behavior, 3DOM CFO catalysts with two different pore d...
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Lawsone (2-hydroxy-1,4-naphthoquinone), a naturally derived red-orange dye, is investigated as a promising cathode material for next-generation lithium batteries. Lithium cells based on lawsone cathode display a high discharge capacity of 280 mA h g(-1) (99% theoretical capacity), a high energy density of 664 W h kg(-1), and long life of 1000 cycle...
Developing lithium ion batteries (LIBs) with fast charging/discharging capability and high capacity is a significant issue for future technical requirements. Transition-metal oxide (TMO) materials are widely studied as the next-generation LIB anode to satisfy this requirement due to their specific capacity, nearly three times than that of conventio...
