Methods for manufacturing a pouch-type battery cell include disposing one or more electrode pairs between a first aluminum pouch layer and a second aluminum pouch layer, sealing the first pouch layer and the second pouch layer to form a peripheral seal joining the first pouch layer and the second pouch layer to form a pouch with an outer edge encasing the anode and the cathode, applying a photocatalytic polymer coating precursor to the outer edge of the pouch, and photo-curing the photocatalytic polymer coating precursor to form a conformal edge coating. The photocatalytic polymer coating precursor includes one or more photo-initiators, one or more acrylates, and one or more polyamines. The polyamines can include tertiary amines including α-CH functional groups, diamines represented by the formula H2N—R—NH2, wherein R represents saturated and unsaturated aliphatic moieties, and N,N′-(2,2-dimethylpropylidene) hexamethylenediamine. The photo-initiators can include Diphenyl(2,4,6-trimethylbenzoyl) phosphine oxide, 2,2-Dimethoxy-2-phenylacetophenone, and p-tert-butylphenyl 1-(2,3)-epoxy)propyl ether.

A energy storage system includes at least one storage cell. The storage cell is provided at least in sections with a casing. The casing consists of plastic and is provided with a material for increasing a thermal conductivity. The material is configured such that a thermal runaway in the event of a fault is reduced.

The present invention provides an adhesive composition that shows good adhesion to a polyolefin resin substrate and a metal substrate, and good electrolyte solution resistance, and also exhibits excellent heat resistance. The present invention also provides a laminate including an adhesive layer comprising the adhesive composition, a packaging material using the laminate for which heat resistance and electrolyte solution resistance are required, and a packaging material for a lithium-ion battery comprising the laminate as a constituent member. The adhesive composition comprises an acid-modified polyolefin (A), an isocyanate curing agent (B), and an acid anhydride group-containing compound (C), the acid anhydride group-containing compound (C) being present in an amount of 0.1 parts by mass or more and 20 parts by mass or less based on 100 parts by mass of the acid-modified polyolefin (A).

The present invention provides an adhesive composition that shows good adhesion to a polyolefin resin substrate and a metal substrate, and good electrolyte solution resistance, and also exhibits excellent heat resistance. The present invention also provides a laminate including an adhesive layer comprising the adhesive composition, a packaging material using the laminate for which heat resistance and electrolyte solution resistance are required, and a packaging material for a lithium-ion battery comprising the laminate as a constituent member. The adhesive composition comprises an acid-modified polyolefin (A), an isocyanate curing agent (B), and an acid anhydride group-containing compound (C), the acid anhydride group-containing compound (C) being present in an amount of 0.1 parts by mass or more and 20 parts by mass or less based on 100 parts by mass of the acid-modified polyolefin (A).

This invention concerns an electrochemical element, in particular a sulphurous solid electrolyte element, comprising a protective casing, as well as modules and batteries comprising such elements.

This invention concerns an electrochemical element, in particular a sulphurous solid electrolyte element, comprising a protective casing, as well as modules and batteries comprising such elements.

The present invention relates to a pouch-shaped battery case manufacturing method including (a) locating a laminate sheet for pouch-shaped battery cases on a lower press die, (b) pressing the laminate sheet using an upper press die to form an electrode assembly receiving portion, (c) forming a venting guide portion in the bottom of the electrode assembly receiving portion, and (d) separating a pouch-shaped battery case having the electrode assembly receiving portion and the venting guide portion formed therein from the lower press die.

The present invention relates to a pouch-shaped battery case manufacturing method including (a) locating a laminate sheet for pouch-shaped battery cases on a lower press die, (b) pressing the laminate sheet using an upper press die to form an electrode assembly receiving portion, (c) forming a venting guide portion in the bottom of the electrode assembly receiving portion, and (d) separating a pouch-shaped battery case having the electrode assembly receiving portion and the venting guide portion formed therein from the lower press die.

Disclosed is a method of manufacturing a pouch-shaped battery cell, the method including (a) forming an electrode assembly receiving portion in a laminate sheet to manufacture a preliminary battery case, (b) receiving an electrode assembly in the electrode assembly receiving portion and sealing other outer peripheries of the preliminary battery case excluding a first side outer periphery of the preliminary battery case, through which gas is discharged, (c) disposing a fixing jig at each of opposite end corner portions of a first side outer periphery of the electrode assembly receiving portion, (d) performing an activation process and a degassing process, (e) resealing the first side outer periphery of the electrode assembly receiving portion, and removing an end of the preliminary battery case, wherein step (d) to step (f) are performed in the state in which the corner portion is in tight contact with the inner surface of the fixing jig, which is technology capable of preventing the preliminary battery case from being deformed by force continuously applied to the preliminary battery case in a process of manufacturing the pouch-shaped battery cell.

The present disclosure relates to a battery cell and a battery module including the same. A battery cell according to one embodiment of the present disclosure includes an electrode assembly including a positive electrode, a negative electrode, and a separator; and a pouch case for housing the electrode assembly, wherein the pouch case includes an insulating fragile portion, which is a portion where insulation is fragile, and wherein an insulating coating layer is formed on the insulating fragile portion.