Abstract: Provided are: a solid-state battery in which an initial load is applied to a battery cell; and a solid-state battery module comprised of the battery. This solid-state battery includes a pressing portion provided on a solid-state battery case so that a spring force is utilized to apply the initial load to the solid-state battery. Specifically, the solid-state battery includes a solid-state battery cell, and a battery case for accommodating the solid-state battery cell, in which the solid-state battery cell is a stack including a positive electrode, a negative electrode, and a solid electrolyte present between the positive electrode and the negative electrode, and in which a face constituting the battery case and extending substantially perpendicular to the stacking direction of the stack has a pressing portion.

Abstract: An image reading apparatus configured to be disposed in an image forming apparatus. An image reading unit is configured to read an image from a document. A light permeable member has a surface configured to face the image on the document, the surface having a roughness of at most 0.5 S. A coating is disposed on the surface of the light permeable member, the coating configured to prevent adherence of contaminants on the surface.

Abstract: An image reading apparatus configured to be disposed in an image forming apparatus. An image reading unit is configured to read an image from a document. A light permeable member has a surface configured to face the image on the document, the surface having a roughness of at most 0.5 S. A coating is disposed on the surface of the light permeable member, the coating configured to prevent adherence of contaminants on the surface.

Abstract: An ionic conductive polymer gel for secondary battery includes an electrolyte salt component which includes a sulfonated derivative with formula (A):LiX(SO.sub.2 R.sup.1).sub.n (A)wherein X is N, C, B, O or --C(R.sup.2).sub.m -- in which R.sup.2 is a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, and m is an integer of 1 to 2; R.sup.1 a halogenated alkyl group having 1 to 12 carbon atoms; and n is an integer of 1 to 3; a non-aqueous solvent; and a polymer matrix prepared by polymerizing a polymerizable material comprising at least one acrylate monomer with a molecular weight of 1000 or less, in the presence of the electrolyte salt component and the non-aqueous solvent. A lithium-ion battery utilizes the ionic conductive polymer gel.

Abstract: The present invention relates to an ionically conductive polymeric gel electrolyte for batteries having high ionic conductivity and sufficiently high solid strength. The invention has an object to provide a solid battery which prevents internal short-circuiting even if no diaphragm is used and which has high reliability, by using the ionically conductive polymeric gel electrolyte. Disclosed is an ionically conductive polymeric gel electrolyte, containing at least a polymer matrix, a non-aqueous electrolytic solution and an electrolytic salt, wherein at least one kind of a halogen-substituted carbonic ester is contained as a solvent of the non-aqueous electrolytic solution. Also disclosed is a solid battery having the ionically conductive polymeric gel electrolyte as a constituent.

Abstract: A secondary battery includes a positive electrode comprising a positive active material; an electrolyte layer including a gel polymer solid electrolyte; and a carbon-based negative electrode capable of occluding and releasing lithium, which contains a binder including a resin composition of a copolymer of (a) a vinyl pyridine compound of formula (1), ##STR1## wherein R.sup.1 is a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, or a halogen atom, and R.sup.2 is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and (b) a hydroxyl-group-containing (meth)acrylate compound.