Ion conductive material for secondary battery
AssigneeSanyo Electric Co., Ltd.
InventorsMasahisa Fujimoto, Koji Nishio, Toshihiko Saitoh
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Abstract
A secondary battery is comprised of a positive electrode having a material intercalating alkali earth metal ions or lanthanoid metal ions reversibly, a negative electrode having a carbon composition intercalating those ions reversibly and an electrolyte having an organic solvent and a solute. The solute includes an alkali earth metal salt or a lanthanoid metal salt. The organic solvent is selected from a group comprising ethylene carbonate (EC), dimethyl carbonate (DMC) and vinylene carbonate (VC). The carbon composition is selected from a group comprising coke, refined coke with 99% or more purity, organic compound produced by calcined cellulose, graphite and glassy carbon.
Claims4
A secondary battery comprising:
- a positive electrode having a material containing reversibly intercalated lanthanoid metal ions, said material being selected from the group consisting of BaSmNiO.sub.5, SmMnO.sub.3, Sm.sub.3 Fe.sub.5 O.sub.12, BaEu.sub.2 NiO.sub.5, EuFeO.sub.3, EuFe.sub.5 O.sub.12, EuMnO.sub.3, EuYbFe.sub.2 O.sub.4, LaNiO.sub.3, La.sub.2 CoO.sub.4, LaNi.sub.0.6 Co.sub.0.4 O.sub.3, LaMnO.sub.4.15, La.sub.4 Mn.sub.4 O.sub.11, LaMnO.sub.3, LaMn.sub.7 O.sub.12 and LaMnO.sub.3.15 ;
- a negative electrode having a carbon composition intercalating lanthanoid ions reversibly;
- and
- an electrolyte having an organic solvent and a solute, said solute including a lanthanoid metal salt.
Dependencies are inferred from the claim text.