Abstract: 1 The present invention relates to a novel fatty acid derivative of formula (I), wherein R1 is acyl group; R2 is acyl(lower)alkyl; R3 is hydrogen, aryl(lower)alkyl, etc.; R4 is acyl(lower)alkyl; and X is —O—, —NH— or formula (II) [wherein R5 is lower alkyl, etc.]; and a pharmaceutically acceptable salt thereof, which is useful as a medicament; the processes for the preparation of said fatty acid derivative or a salt thereof; a pharmaceutical composition comprising said fatty acid derivative or a pharmaceutically acceptable salt thereof; etc.

Abstract: Disclosed is a rechargeable lithium battery including a negative electrode containing lithium as active material, a positive electrode containing a lithium-manganese complex oxide as active material and a nonaqueous liquid electrolyte containing a solvent, a solute and trialkyl phosphite.

Abstract: A non-aqueous electrolyte battery includes a positive electrode, a negative electrode and a non-aqueous electrolyte, wherein the non-aqueous electrolyte contains boric acid ester as a solvent.

Abstract: In a non-aqueous electrolyte battery using titanium oxide or lithium titanate as a negative electrode material for negative electrode, polymeric electrolyte is interposed between the negative electrode and a positive electrode. If titanium oxide or lithium titanate is used as the negative electrode material for negative electrode and the polymeric electrolyte is interposed between the negative electrode and the positive electrode, the polymeric electrolyte is less liable to be decomposed by catalytic reduction induced by titanium oxide or lithium titanate. This prevents decline in the charge/discharge efficiency which occurs when a non-aqueous electrolyte solution is used. Thus, the non-aqueous electrolyte battery excellent in charge/discharge efficiency is provided.

Abstract: Disclosed is a rechargeable lithium battery including a lithium-aluminum-manganese alloy negative electrode containing lithium as active material, a positive electrode, and a nonaqueous liquid electrolyte containing a solvent, a solute and at least one additive selected from trialkyl phosphite, trialkyl phosphate, trialkyl borate, dialkyl sulfate and dialkyl sulfite.

Abstract: A non-aqueous electrolyte cell includes a positive electrode, a negative electrode, and an electrolyte consisting of a solute and an organic solvent. The solvent is a solvent mixture of a cyclic carbonate and a non-cyclic carbonate.

Abstract: A nonaqueous electrolyte battery having improved storage stability is disclosed. The battery includes a positive electrode; s negative electrode in which the active material is lithium or a compound capable of absorbing and desorbing lithium; and a nonaqueous electrolyte containing an organic solvent, at least 10 wt % of which is dioxolane, a solute and a storage stabilizing additive which is an oxygen acid ester, isoxazole, oxazole or oxazoline or a derivative thereof. The additive reduces the self-discharge rate of the battery during storage.

Abstract: The present invention relates to a novel fatty acid derivative of the following formula: ##STR1## wherein R.sup.1 is acyl group, etc.;R.sup.2 is acyl(lower)alkyl;R.sup.3 is lower alkyl, etc.;R.sup.4 is hydrogen, etc.; andX is --O--, etc;and a pharmaceutically acceptable salt thereof, which is useful as a medicament; the processes for the preparation of said fatty acid derivative or a salt thereof; a pharmaceutical composition comprising said fatty acid derivative or a pharmaceutically acceptable salt thereof; etc.

Abstract: A lithium secondary battery comprises a negative electrode having lithium as an active material, a positive electrode comprising a boron-containing lithium-manganese composite oxide as an active material and a nonaqueous electrolyte comprising a solute and a solvent, the boron-containing lithium-manganese composite oxide having an atomic ratio between B and Mn (B/Mn) of 0.01 to 0.20 and an average valence of manganese before charge-discharge of at least 3.80, and the solvent being a mixed solvent containing 5 to 50% by volume of a butylene carbonate. This battery is highly reliable, since the positive electrode active material minimally decomposes and hence the internal resistance minimally increases, even when the battery is continuously charged at a high voltage by mistake.

Abstract: A non-aqueous electrolyte cell having a positive electrode, a negative electrode and an electrolyte contained in a cell can, the electrolyte including a solute and an organic solvent, the solute comprising lithium trifluoromethanesulfonate. The organic solvent comprises an organic solvent mixture of at least two high boiling point solvents including at least one cyclic carbonates. The negative electrode comprises a lithium alloy. The electrolyte includes a reaction inhibitor added thereto for inhibiting reaction between the cell can and the electrolyte. Further, the lithium trifluoromethanesulfonate is heated, dried and dehydrated in a vacuum at 80.degree.-150.degree. C.