Matches in SemOpenAlex for { <https://semopenalex.org/work/W2980522070> ?p ?o ?g. }
- W2980522070 abstract "Herein, graphite is proposed as a reliable Ca2+-intercalation anode in tetraglyme (G4). When charged (reduced), graphite accommodates solvated Ca2+-ions (Ca-G4) and delivers a reversible capacity of 62 mAh g-1 that signifies the formation of a ternary intercalation compound, Ca-G4·C72. Mass/volume changes during Ca-G4 intercalation and the evolution of in operando X-ray diffraction studies both suggest that Ca-G4 intercalation results in the formation of an intermediate phase between stage-III and stage-II with a gallery height of 11.41 Å. Density functional theory calculations also reveal that the most stable conformation of Ca-G4 has a planar structure with Ca2+ surrounded by G4, which eventually forms a double stack that aligns with graphene layers after intercalation. Despite large dimensional changes during charge/discharge (C/D), both rate performance and cyclic stability are excellent. Graphite retains a substantial capacity at high C/D rates (e.g., 47 mAh g-1 at 1.0 A g-1 s vs 62 mAh g-1 at 0.05 A g-1) and shows no capacity decay during as many as 2000 C/D cycles. As the first Ca2+-shuttling calcium-ion batteries with a graphite anode, a full-cell is constructed by coupling with an organic cathode and its electrochemical performance is presented." @default.
- W2980522070 created "2019-10-25" @default.
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- W2980522070 date "2019-10-16" @default.
- W2980522070 modified "2023-10-14" @default.
- W2980522070 title "Graphite as a Long‐Life Ca<sup>2+</sup>‐Intercalation Anode and its Implementation for Rocking‐Chair Type Calcium‐Ion Batteries" @default.
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- W2980522070 doi "https://doi.org/10.1002/advs.201902129" @default.
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