A secondary battery pack including a battery cell having first and second electrode terminals at a top thereof, an electrically insulative mounting member having an opening, through which the second terminal is exposed, the mounting member being mounted to a top of the cell, a protection circuit module (PCM) including a protection circuit board (PCB), having a protection circuit, loaded on the mounting member, a connection member (A) connected to the first terminal, and a connection member (B) connected to the second terminal, the PCB being provided with a through hole, through which the connection member (B) is exposed, and an insulative cap coupled to an upper end of the cell to surround the mounting member in which the connection members and the PCB are loaded on the mounting member, wherein the sum of a height of the PCM and a height of the cap is 3.0 mm or less.

A direct welding process for joining a current collector to a terminal pin in the construction of electrochemical cells is described. The resistance welding process utilizes increased current combined with an applied force to bond dissimilar metals with a melting temperature differential of preferably more than 500° C. Preferably, the method is used to bond the terminal pin to the cathode current collector. This method of attachment is suitable for either primary or secondary cells, particularly those powering implantable biomedical devices.

A plating layer 4 is formed on a surface of a battery cover 3, and a peripheral edge part 37b of a cover case 37 is arranged on an upper surface of the plating layer 4. A welding part 40 is formed at a tip part of the peripheral edge part 37b. The welding part 40 includes a melted part 41 in which the tip of the peripheral edge part 37b is melted, and an elution part 42 flowing from the tip onto the plating layer 4, and the melted part 41 and the elution part 42 are welded to the plating layer 4 in the upper surface of the plating layer 4.

An energy storage device that includes a housing, which includes at least one end panel that includes at least one aperture therethrough. The device further includes a battery cell housed in the housing. The battery cell includes mutually opposed first and second faces joined at their edges. The device also includes a heat sink adjacent to the battery cell and in thermal contact with the first face of the battery cell. The heat sink defines at least one cooling medium passage extending parallel to the face of the adjacent battery cell. The cooling medium passage opens onto the at least one aperture formed through the at least one end panel of the housing.

Provided are a battery cell for a secondary battery and a method for manufacturing the same, and more particularly, a battery cell having a frame, the frame protecting the battery cell.

A manufacturing method of a secondary battery includes a first sealing process that stores a power generation element inside an exterior body formed by overlapped exterior films and that seals the exterior body at a first sealing part, the power generation element being arranged with a space from at least a part of the first sealing part, a conditioning process that performs conditioning, an hole forming process that forms a degassing hole between the first sealing part and the power generation element, and a second sealing process that seals the degassing hole, in which the hole forming process includes a pressing process that presses, from both sides of the exterior body, a portion where the degassing hole is formed in the exterior body so that the overlapped exterior films are brought into contact with each other, before the degassing hole is formed in the exterior body.

Disclosed herein is a method of manufacturing a battery cell having an electrode assembly of a cathode/separator/anode structure disposed in a battery case made of aluminum or an aluminum alloy together with an electrolyte in a sealed state, the method including (a) anodizing an entire surface of the battery case in a state in which an uncoated margin section having a predetermined length is provided downward from an outer circumference of an upper end of the battery case, (b) mounting the electrode assembly in the battery case and connecting a cap plate to an open upper end of the battery case by laser welding, (c) injecting an electrolyte through an electrolyte injection port of the cap plate and activating the battery cell, and (d) replenishing the electrolyte and sealing the electrolyte injection port.

Provided are: a solid battery which has been sealed in an exterior material under a reduced pressure, wherein gas in the exterior material can be fully removed when depressurizing the inside of the exterior material; and a method of manufacturing the solid battery, the solid battery having a single cell having: a laminated body having a cathode layer, an anode layer, and an electrolyte layer disposed between the cathode layer and the anode layer; an insulating part disposed on an outer perimeter of the laminated body in a cross-sectional view of the laminated body in a direction orthogonal to a lamination direction thereof, and a pair of current collectors sandwiching the laminated body and the insulating part, wherein the single cell has been sealed in an exterior material under a reduced pressure; and the insulating part has vent holes.

According to one embodiment, there is provided a battery having a plurality of current collector tabs extended from a plurality of points of a current collector of at least one electrode of a positive electrode and a negative electrode. The battery further has a lid and a lead. The lead has a current collector tab junctional part connected with the current collector tabs, a lid junctional part fixed to the lid, and a vibration absorber part linking the current collector tab junctional part to the lid junctional part.

A secondary battery includes an opening portion provided to a case. A first sealing body is provided to the opening portion, the first sealing body being displaced or deformed by a pressure difference between an inside and an outside of the case in such manners that the first sealing body is pressed by internal pressure to allow outflow of inside air from the opening portion when the internal pressure in the case is higher than external pressure and that the first sealing body is pressed by the external pressure to prevent entry of outside air from the opening portion when the internal pressure in the case is lower than the external pressure. Pressure in a space surrounded with the case and the first sealing body is set to be lower than pressure outside the space.