A thin film battery comprises a substrate, anode and cathode current collector layers formed over the substrate, anode and cathode layers formed over and in electrical contact with respective ones of the current collector layers, and an electrolyte layer formed between the anode and cathode layers. The thin film battery further comprises a barrier layer formed from a material such as tin oxide, tin phosphate, tin fluorophosphate, chalcogenide glass, tellurite glass or borate glass. The barrier layer is configured to encapsulate the thin film battery layers and substantially inhibit or prevent exposure of the thin film battery layers to air or moisture.

A cell block including a metal case including a plurality of pipe-shaped members and a plurality of single cells housed in each of the pipe-shaped members. Each of the pipe-shaped members is joined at joining surfaces, and the pipe-shaped members are joined and integrated. A member for housing single cells is provided, and the housing member is molded with a high degree of accuracy and is capable of being manufactured at low cost and in a simple manner.

A button cell includes a housing, the housing having a cell cup with a flat bottom area, and a cell top with a flat top area, and further includes an electrode-separator assembly winding disposed within the housing, the electrode-separator assembly winding including a multi-layer assembly that is wound in a spiral shape about an axis. The multi-layer assembly includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The button cell additionally includes a first output conductor between a first end face of the electrode-separator assembly winding and a first of the flat bottom area or the flat top area, and a second output conductor between a second end face of the electrode-separator assembly winding and a second of the flat bottom area or the flat top area. Furthermore, the button cell includes a first insulator and a second insulator.

An electrolyte comprising an organic solvent, a lithium salt, and a polymer additive comprised of repeating vinyl units joined to one or more heterocyclic amine moieties is described. The heterocyclic amine contains five to ten ring atoms, inclusive. An electrochemical cell is also disclosed. The preferred cell comprises a negative electrode which intercalates with lithium, a positive electrode comprising an electrode active material which intercalates with lithium, and the electrolyte of the present invention activating the negative and the positive electrodes.

An electric storage device includes an electrolyte and an electric storage unit including a positive electrode including a positive-electrode collector electrode and a positive-electrode active-material layer disposed on the positive-electrode collector electrode; a negative electrode including a negative-electrode collector electrode and a negative-electrode active-material layer disposed on the negative-electrode collector electrode and facing the positive-electrode active-material layer; a first insulating layer bonded to the positive electrode and the negative electrode to isolate the positive electrode and the negative electrode from each other; and a region that is sealed with the first insulating layer in plan view and that holds the electrolyte between the positive electrode and the negative electrode, wherein an air permeability P of the first insulating layer satisfies the formula 1250 s/100 cc<P<95000 s/100 cc.

Polymer-fused batteries are provided. The battery includes a casing, an anode coupled to the casing, an electrical source disposed between the casing and the anode, and a fuse. The polymer fuse comprises an electrically-conductive material formulated to decompose upon contact with a bodily fluid.

Provided are a bi-cell for a secondary battery having improved stability which may reduce shrinkage of a separator, and a method of preparing the bi-cell. The bi-cell for a secondary battery having improved stability according to an exemplary embodiment of the present invention is characterized in that a cathode and an anode are alternatingly disposed in a state in which the cathode has one more layer than the anode or the anode has one more layer than the cathode, separators having a bigger size than the cathode and the anode and insulating the cathode and the anode are disposed between the cathode and the anode, and edges of an upper separator and edges of a lower separator, which face to each other having the cathode and the anode disposed therebetween, are attached to each other to form fused portions.

A separator for a lithium battery includes a porous coating layer disposed on a surface of a porous base, and a first adhesive layer including a plurality of dots disposed at intervals at a surface of the porous coating layer, the plurality of dots of the first adhesive layer penetrating through the porous coating layer to be on the surface of the porous base.

In a method of manufacturing an electrode assembly for a rectangular battery, in which positive electrodes and negative electrodes are alternately laminated so that a separator exists between the respective positive and negative electrodes, the manufacturing method includes the steps of: arranging a plurality of guide members in zigzag form in a perpendicular direction; inserting a continuous member of the separator between one and another one rows of the guide members; folding, into zigzag form, the continuous member by intersecting the rows of the guide members in a horizontal direction; inserting alternately the positive electrodes and the negative electrodes in respective valley grooves of the zigzag-folded continuous member; withdrawing the guide members from the respective valley grooves of the continuous member; and pressing, thereafter, the continuous member in the zigzag direction so as to make flat the continuous member.

The invention relates to a power storage module (10) capable of containing a plurality of power storage elements (14), the module including: a housing (16) including at least a plurality of side walls and two end walls (18A; 18B), the side walls consisting of one piece (20) having a closed outline and being sized so as to surround the power storage elements; a wall (22) for supporting the power storage elements, which is separate from the walls of the housing, and which extends essentially parallel to one of the side walls, referred to as a reference wall (20A); a means (24A-24B) for changing the position of the supporting wall (22) between at least an assembly position, in which the supporting wall is located at a first distance from the reference wall (20A), and an operating position, in which the supporting wall is located at a second distance from the reference wall (20A) that is greater than the first distance.