A battery core and a battery are provided. The battery core includes a plate, a separator, a tab, and an insulating support portion. The tab is connected with the plate. The insulating support portion is arranged on an end of the plate and supports the tab. The tab extends through the insulating support portion and extends outward.

A battery core and a battery are provided. The battery core includes a plate, a separator, a tab, and an insulating support portion. The tab is connected with the plate. The insulating support portion is arranged on an end of the plate and supports the tab. The tab extends through the insulating support portion and extends outward.

Disclosed are a polymer gel electrolyte composition, a polymer gel electrolyte prepared from the composition, and a lithium secondary battery including the electrolyte are proposed. The polymer gel electrolyte may be formed by thermal cross-linking of the polymer gel electrolyte composition including an ether-based organic solvent with excellent compatibility with a lithium metal anode, a nitrate capable of forming a stable film on an electrode surface, and an appropriate ratio of a cross-linking agent having two or more acrylate functional groups. Therefore, the polymer gel electrolyte can smoothly penetrate the anode to form an ion transport channel and improve oxidation stability through interaction between the polymer and the solvent thereof, thereby improving battery life.

Disclosed are a polymer gel electrolyte composition, a polymer gel electrolyte prepared from the composition, and a lithium secondary battery including the electrolyte are proposed. The polymer gel electrolyte may be formed by thermal cross-linking of the polymer gel electrolyte composition including an ether-based organic solvent with excellent compatibility with a lithium metal anode, a nitrate capable of forming a stable film on an electrode surface, and an appropriate ratio of a cross-linking agent having two or more acrylate functional groups. Therefore, the polymer gel electrolyte can smoothly penetrate the anode to form an ion transport channel and improve oxidation stability through interaction between the polymer and the solvent thereof, thereby improving battery life.

An all solid battery includes a multilayer chip in which each of a plurality of solid electrolyte layers including solid electrolyte and each of a plurality of internal electrodes including an electrode active material are alternately stacked, the multilayer chip having a rectangular parallelepiped shape, the plurality of internal electrodes being alternately exposed to two side faces of the multilayer chip other than two end faces of a stacking direction of the multilayer chip, and a pair of external electrodes that contacts the two side faces. At least one of the pair of external electrodes includes an electrode active material of which a pole is a same as that of an electrode active material of the internal electrode which contacts the one of the pair of external electrodes.

The disclosed technology relates to a battery utilizing a dampening layer to prevent a failure of the battery. The battery includes an enclosure, a set of electrodes enclosed within the enclosure, and a dampening layer disposed within the set of electrodes. The dampening layer partitions the set of electrodes into a first subset of electrodes and a second subset of electrodes. The dampening layer is configured to absorb a mechanical impact on the enclosure to prevent a failure of at least one of the first subset of electrodes and the second subset of electrodes. The dampening layer may be formed at least one of a polymer, metal, and ceramic.

A power storage cell is provided with a positive electrode, a negative electrode, a separator, and a spacer. The positive electrode has: a first current collector; and a positive electrode active material layer provided on a one surface of the first current collector. The negative electrode has: a second current collector; and a negative electrode active material layer provided on a one surface of the second current collector. The separator has a base material layer, a first adhesive layer, and a second adhesive layer. The one surface of the first current collector is adhered to the first adhesive layer in an edge portion of the separator. The spacer is adhered to the second adhesive layer in the edge portion of the separator.

A power storage cell is provided with a positive electrode, a negative electrode, a separator, and a spacer. The positive electrode has: a first current collector; and a positive electrode active material layer provided on a one surface of the first current collector. The negative electrode has: a second current collector; and a negative electrode active material layer provided on a one surface of the second current collector. The separator has a base material layer, a first adhesive layer, and a second adhesive layer. The one surface of the first current collector is adhered to the first adhesive layer in an edge portion of the separator. The spacer is adhered to the second adhesive layer in the edge portion of the separator.

An exemplary battery assembly includes, among other things, a thermal fin, a frame holding the thermal fin, and a stand-off of the frame configured to limit relative movement of the thermal fin toward a thermal exchange plate. An exemplary thermal fin positioning method, includes limiting relative movement of a thermal fin toward a thermal exchange plate using a stand-off disposed upon a battery cell assembly frame.

Provided herein are electrochemical cells and/or electrode stacks comprising an interlayer disposed proximate to the negative electrode current collector and/or a metal negative electrode, wherein the interlayer is disposed between and in contact with a negative electrode current collector and a solid-state electrolyte separator or between and in contact with a metal negative electrode and a solid-state electrolyte separator.