A battery cell is configured such that a jelly-roll type electrode assembly is accommodated in a battery casing, and includes: the battery casing including upper, lower, and side surfaces, wherein the side surface of the battery casing includes an isolation wall providing a buffer space between the battery casing and the electrode assembly. The buffer space accommodates deformation of the electrode assembly when the electrode assembly is expanded, such that deformation of the side surface of the battery casing is prevented from occurring.

Provided is a casing for a lithium metal secondary battery including: a battery casing material; at least one releasable capsule attached at least partially or totally to the inner surface of the casing material to cover the inner surface of the casing material; and a release solution supported in the releasable capsule, wherein the releasable capsule includes a capsule coating film and a capsule inner space surrounded with the capsule coating film, the release solution is supported in the capsule inner space, and the release solution includes a release agent and a solvent. A lithium metal secondary battery including the casing and a method for manufacturing the same are also provided. It is possible to increase releasability of the negative electrode in a lithium metal secondary battery and to improve nail safety by using the releasable capsule according to the present disclosure.

A case having elasticity corresponding to expansion and contraction of a stacked body housed therein and a method for manufacturing the same, a method for inserting the stacked body into the case, and a cell stack using the case are provided. A case configured to house a stacked body includes two opposed contact parts in contact with the stacked body, and two spring structures connecting the two contact parts with each other.

A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case including an inner space accommodating the electrode assembly, and an opening; a cap plate coupled to the case at the opening and including a terminal hole exposing the inner space; an electrode terminal electrically connected to the electrode assembly through the terminal hole and overlapping the cap plate; electrode tabs respectively connected to the first electrode and the second electrode; and an electrolyte solution in the inner space, and at least one electrode tab of the electrode tabs has an inclined portion that is inclined at a first angle with respect to a surface of the electrode assembly facing the at least one electrode tab.

To provide an all-solid-state battery that makes it possible to suppress short-circuiting due to a partially missing resin layer of a housing, in the all-solid-state battery formed of sealing an electrode structure in the housing, the housing is provided with a metal layer, the electrode structure includes an electrode stack and an outermost solid electrolyte layer, the electrode stack includes an outermost first current collector layer, the area of the outermost solid electrolyte layer is larger than the area of a flat plate part of the outermost first current collector layer in the stacking direction view, and the outermost solid electrolyte layer is stacked so as to entirely cover the flat plate part of the outermost first current collector layer.

To provide an all-solid-state battery that makes it possible to suppress short-circuiting due to a partially missing resin layer of a housing, in the all-solid-state battery formed of sealing an electrode structure in the housing, the housing is provided with a metal layer, the electrode structure includes an electrode stack and an outermost solid electrolyte layer, the electrode stack includes an outermost first current collector layer, the area of the outermost solid electrolyte layer is larger than the area of a flat plate part of the outermost first current collector layer in the stacking direction view, and the outermost solid electrolyte layer is stacked so as to entirely cover the flat plate part of the outermost first current collector layer.

Disclosed herein is a pouch-shaped battery case configured to receive an electrode assembly having a separator interposed between positive and negative electrodes, together with an electrolytic solution, the pouch-shaped battery case including an outer coating layer defining an outer surface of the battery case and configured to protect the electrode assembly from an outside of the battery case, the outer coating layer made of a polymer resin, a metal barrier layer located between the outer coating layer and an inner surface of the battery case, the metal barrier layer having high moisture-blocking efficiency and high thermal conductivity, and an inner sealant layer located between the metal barrier layer and an inner surface of the battery case, the inner sealant layer made of a polymer resin that has high thermal fusibility, the metal barrier layer includes a first metal that has high formability and a second metal that has high rigidity.

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.

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).

A system for a pouch cell casing configured for use in an electric aircraft includes at least a pouch cell. The at least a pouch cell includes at least a pair of cell tabs, a battery cell, a pouch substantially encompassing the battery cell and the at least a pair of cell tabs. The at least a pouch cell includes at least a first side, a cell casing configured to substantially encompass the at least a pouch cell and including a first face disposed parallel and adjacent to the at least a first side, a second face disposed perpendicular and affixed to the first face, and at least an opening disposed on the first face opposite and adjacent to the at least a first side.