Abstract: A light-emitting electrochemical cell has a light-emitting layer and electrodes and disposed on the respective surface thereof. The light-emitting layer includes an organic polymeric light-emitting material and an ionic compound represented by the general formula (1). The ring A1 denotes an aromatic ring; X is S, C or P; R1 denotes R? or OR?, and R? denotes an alkyl group; n denotes 0 or 1; B denotes O, OR2 or A2, R2 denotes a saturated hydrocarbon group, and A2 denotes an aromatic ring; the bond a is a single bond or a double bond; the bond a between B and X is a double bond and B is O; when X is P, the bond a between B and X is a single bond and B is OR2 or A2; d is 1 or more; and Y+ denotes a cation.

Abstract: Provided is an electrochemical luminescent cell 10 having a luminescent layer 12 and electrodes 13, 14 provided on each surface of the luminescent layer 12. The luminescent layer 12 comprises an organic polymeric luminescent material and a combination of at least two organic salts. In particular, the luminescent layer preferably comprises a combination of at least two types of ionic liquids represented by formula (1) (wherein R1, R2, R3 and R4 each represent an optionally-substituted alkyl group, alkoxy alkyl group, trialkylsilylalkyl group, alkenyl group, alkynyl group, aryl group or heterocylic group. R1, R2, R3 and R4 may be the same or different. M represents N or P. X? represents an anion.

Abstract: A light-emitting electrochemical cell (10) has: a light-emitting layer (12) containing a polymer material having a function of transporting electrons and holes, a light-emitting material emitting light by receiving holes and electrons from the polymer material or emitting light due to excitons generated by combination of holes and electrons on the polymer material, and an electrolyte; and an electrode (13, 14) disposed on each face of the light-emitting layer (12). The light-emitting material is a compound having a pyrromethene skeleton. The light-emitting layer (12) is preferably colorless and transparent in a visible light wavelength region in a state where voltage is not applied.

Abstract: An additive for a light-emitting layer contains a compound represented by formula (1): where X is P, C, or S; A is a cyclic hydrocarbon group that may have H, a direct bond, a chain hydrocarbon group, or a heteroatom; R is H or an alkyl group, and a plurality of R may link together to form a ring, and if said ring is formed, at least one R is an alkyl group; m is 0 or 1; r is 1 when X is a phosphorous atom or a carbon atom and 2 when X is a sulfur atom; n is a number represented by 3-m when X is a phosphorous atom, and a number represented by 2-m if X is a carbon atom or a sulfur atom; and p is 1 when m is 0, at least 1 when m is 1, and is a substitutable number in A.

Abstract: An additive for a light-emitting layer contains a compound represented by formula (1): where X is P, C, or S; A is a cyclic hydrocarbon group that may have H, a direct bond, a chain hydrocarbon group, or a heteroatom; R is H or an alkyl group, and a plurality of R may link together to form a ring, and if said ring is formed, at least one R is an alkyl group; m is 0 or 1; r is 1 when X is a phosphorous atom or a carbon atom and 2 when X is a sulfur atom; n is a number represented by 3-m when X is a phosphorous atom, and a number represented by 2-m if X is a carbon atom or a sulfur atom; and p is 1 when m is 0, at least 1 when m is 1, and is a substitutable number in A.

Abstract: A light-emitting electrochemical cell has a light-emitting layer and electrodes and disposed on the respective surface thereof. The light-emitting layer includes an organic polymeric light-emitting material and an ionic compound represented by the general formula (1). The ring A1 denotes an aromatic ring; X is S, C or P; R1 denotes R? or OR?, and R? denotes an alkyl group; n denotes 0 or 1; B denotes O, OR2 or A2, R2 denotes a saturated hydrocarbon group, and A2 denotes an aromatic ring; the bond a is a single bond or a double bond; the bond a between B and X is a double bond and B is O; when X is P, the bond a between B and X is a single bond and B is OR2 or A2; d is 1 or more; and Y+ denotes a cation.

Abstract: A light-emitting electrochemical cell 10 includes an emitting layer 12 and electrodes 13 and 14, one on each side of the emitting layer 12. The emitting layer 12 contains a light-emitting material and an ionic compound. The ionic compound has general formula (1), wherein M is N or P; R1, R2, R3, and R4 each independently represent a C1-C20 saturated aliphatic group; and X is preferably an anion having a phosphoric ester bond or a sulfuric ester bond. The light-emitting material is preferably an organic light-emitting polymer, a metal complex, an organic low molecular compound, or a quantum dot.

Abstract: Provided is an electrochemical luminescent cell 10 having a luminescent layer 12 and electrodes 13, 14 provided on each surface of the luminescent layer 12. The luminescent layer 12 comprises an organic polymeric luminescent material and a combination of at least two organic salts. In particular, the luminescent layer preferably comprises a combination of at least two types of ionic liquids represented by formula (1) (wherein R1, R2, R3 and R4 each represent an optionally-substituted alkyl group, alkoxy alkyl group, trialkylsilylalkyl group, alkenyl group, alkynyl group, aryl group or heterocylic group. R1, R2, R3 and R4 may be the same or different. M represents N or P. X? represents an anion.

Abstract: A light-emitting electrochemical cell 10 includes an emitting layer 12 and electrodes 13 and 14, one on each side of the emitting layer 12. The emitting layer 12 contains a light-emitting material and an ionic compound. The ionic compound has general formula (1), wherein M is N or P; R1, R2, R3, and R4 each independently represent a C1-C20 saturated aliphatic group; and X is preferably an anion having a phosphoric ester bond or a sulfuric ester bond. The light-emitting material is preferably an organic light-emitting polymer, a metal complex, an organic low molecular compound, or a quantum dot.

Abstract: The present invention provides an electrolyte composition used in a charge storage device, which comprises an ionic liquid that has high ionic conductivity and is highly safe with no risks of inflammation and the like. It is an electrolyte composition used in a charge storage device, which comprises a quaternary phosphonium salt ionic liquid represented by general formula (1) as described below. The viscosity at 25° C. of this ionic liquid is preferably 200 mPa·sec or less. In the general formula (1), it is preferable that the alkoxyalkyl group be a methoxymethyl group and that all the alkyl groups be ethyl groups. wherein R1 represents a linear or branched alkyl group containing 1 to 3 carbon atoms; R2 represents a methyl group or an ethyl group; n represents an integer between 1 and 3; and X represents N(SO2CF3)2.

Abstract: A lithium transition metal complex oxide for a lithium ion secondary battery cathode active material contains 100 to 1000 ppm of silicon and 300 to 900 ppm of fluorine. A method for producing the lithium transition metal complex oxide includes the step of mixing a lithium compound, a transition metal compound, a fluorine compound, and a silicon compound to prepare a raw material mixture, and the step of firing the raw material mixture to produce the lithium transition metal complex oxide.