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Article Dans Une Revue Electrochemistry Communications Année : 2016

A dual–ion battery using diamino–rubicene as anion–inserting positive electrode material

Résumé

A novel and non-polymeric anion-inserting electrode material has been designed and prepared for promoting research on molecular ion rechargeable batteries: 5,12-diaminorubicene (DARb). The apolar core structure of a rubicene molecule has been coupled to two amino-groups for producing an original conjugated primary diamine exhibiting lowaffinity for polar solvents such as common carbonate-based battery electrolytes. The electrochemical reactivity of this organic molecule has been probed in a dual-ion cell configuration (vs. Li) using six different electrolyte formulations in terms of solvent (PC, EC-DMC) and lithium salt (LiPF6, LiClO4, LiTFSI). This diaminorubicene material systematically showed a reversible electroactivity and promising performances when using 1MLiPF6 in EC:DMC (1:1 vol.%) as the electrolyte, such as an average potential of ~3.4 V vs. Li+/Li, an initial capacity of 115 mAh·g−1 and a good capacity retention over 60 cycles without any optimization.
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Dates et versions

hal-01382972 , version 1 (17-10-2016)

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Elise Deunf, Pablo Jimenez-Manero, Dominique Guyomard, Franck Dolhem, Philippe Poizot. A dual–ion battery using diamino–rubicene as anion–inserting positive electrode material. Electrochemistry Communications, 2016, 72, pp.64-68. ⟨10.1016/j.elecom.2016.09.002⟩. ⟨hal-01382972⟩
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