Abstract: An ion conductive material containing a compound which comprises a resonance structure group which contains an atom of the Vb group in the Periodic Table serving as an anionic site and is bonded to an electron attractive organic group through an atom of the VIb group in the Periodic Table, and a counter ion selected from the group consisting of metal ions and a hydrogen ion. This material is useful as an electrolyte of a cell since it is excellent in high voltage stability.

Abstract: An organic electrolytic solution secondary cell having a positive electrode, a negative electrode and an organic electrolytic solution, wherein a solvent of the organic electrolytic solution contains a triester of phosphoric acid, and the negative electrode contains a carbonaceous material, further, the carbonaceous material of the negative electrode has the specific surface condition, and carbon dioxide is dissolved in the organic electrolytic solution, whereby safety and shelf stability of the cell are increased, and also cell properties such as the closed circuit voltage, the retention (difference between the charge capacity and the discharge capacity), the discharge capacity and so on are improved.

Abstract: An organic electrolytic solution cell having a positive electrode, a negative electrode which is made of an alkali metal or a compound containing an alkali metal, and an organic electrolytic solution which contains, as an electrolyte, an organic metal salt containing an atom selected from the elements of IIIb to Vb groups of the Periodic Table which forms an anion center and an electron attractive organic group bonded to the atom through an oxygen atom, or an organic metal salt having an atom which forms an anion center and a counter cation in a molar ratio of the counter cation to the anion center atom of larger than 1, which cell has excellent shelf stability.

Abstract: A layer built cell with improved safety having at least one pair of positive and negative electrodes, an electrolytic solution and at least one separator which is present between the pair of electrodes. The separator has a liquid retention rate of at least 1.5 cc/g, the retention rate having been measured relative to retention of propylene carbonate.

Abstract: A thermally stable organic electrolytic solution cell which has a positive electrode, a negative electrode having an alkali metal or an compound of an alkali metal, and an electrolytic solution having an organic solvent and an electrolyte, wherein the electrolytic solution contains a dissolved organic metal salt in which a fluoroalkyl group having at least 4 carbon atoms and an anionic group are covalently bonded, and to the anionic group, an alkali metal ion or an alkaline earth metal ion is ionically bonded.

Abstract: An organic electrolytic solution type cell using an electrolytic solution of a lithium salt in a polar solvent which comprises a compound having an organophobic group and an organophilic group, which cell has improved storage stability and good charge-discharge characteristics.

Abstract: An organic electrolytic solution containing an organic solvent, and a metal salt having at least one electron attractive group and an anion which contains at least one element selected from the elements of the IIIb to VIb group of the Periodic Table and a charge-center atom of which is bonded to the electron attractive group by an intermediate backbone, in which a maximum distance between the center of the charge-center atom and the center of other atom in the anion is at least 4 .ANG.,. and a cell comprising this organic electrolytic solution, both having improved shelf stability.

Abstract: An organic electrolytic solution type cell using an electrolytic solution of a lithium salt in a polar solvent which comprises a compound having an organophobic group and an organophilic group, which cell has improved storage stability and good charge-discharging characteristics.