A rechargeable battery according to an exemplary embodiment of the present invention includes: an electrode assembly provided with a non-coated area tab that protrudes to one side of a coated area; a case provided with an opening at one side thereof to receive the electrode assembly; a cap plate coupled and welded to the opening; an electrode terminal provided in the cap plate and electrically connected to the non-coated area tab; and an insulation sheet disposed between the cap plate and the electrode assembly, and bent toward a direction crossing the cap plate at opposite ends of the inside of the cap plate and insulating the electrode assembly, wherein the insulation sheet includes a spacing portion that is distanced from a side corner of a welding line of the cap plate and the case.

A power storage system or a power storage device that can restore reduced capacity is provided. The power storage device includes a first exterior body, a first electrode, a second electrode, a first electrolyte solution, and a carrier ion permeable film. The first electrode, the second electrode, and the first electrolyte solution are covered with the first exterior body. The first electrode and the second electrode are in contact with the first electrolyte solution. The first electrolyte solution includes carrier ions. A first opening is provided in the first exterior body. The carrier ion permeable film is provided to be in contact with the first electrolyte solution and so as to block the first opening without any space. The carrier ion permeable film is configured to be impermeable to water and air but permeable to the carrier ions.

A sealing plate for a prismatic secondary battery includes a pair of mouths for attaching a negative and positive electrode terminals, one mouth being formed near one end in a longitudinal direction of the sealing plate, and the other mouth being formed near the other end, coining areas used for positioning of an insulating member and formed around the pair of mouths on a front face of the sealing plate, a gas release valve and an electrolyte pour hole formed between the pair of mouths, and grooves formed between the respective coining areas and the long side edge of the sealing plate. The groove has a smaller depth near the gas release valve than the depth near the coining area. Even when the sealing plate is produced through forging, the front face has good flatness and the coining areas are unlikely to have a sink mark or a shear drop.

A system for coupling a conduit to a valve is disclosed. The valve includes at least one coupling, wherein the coupling includes an inlet leading to an internal chamber of the valve, a collar positioned within the inlet, a gripper positioned partially within the inlet and in contact with at least a portion of the collar, and a wiper seal positioned within the internal chamber. The system further includes a conduit, wherein the conduit is insertable through the gripper via a first force, and wherein the conduit is subsequently insertable through the wiper seal via a second force that is less than the value of the first force. The conduit may optionally be labeled with a set of visual markings to provide proper cutting angles and to indication proper positioning of the conduit into the valve to effectuate a tight seal.

The invention relates to a battery, in particular to a hybrid battery. The invention provides a hybrid battery that is easy to replace a terminal block and has low maintenance cost, comprising a casing and at least two different sets of battery cells arranged in the casing, wherein the casing is detachably provided with a terminal block, the terminal block is electrically connected with the electrode of the battery cells. When in use, the terminal block in the invention can be detached from the hybrid battery in time if the terminal block is oxidized and blackened for long time use, and only the terminal block is replaced instead of the entire hybrid battery, therefore, the maintenance cost of the hybrid battery is low.

The disclosure provides a pin assembly for a cell. The cell includes an electrode assembly comprising a central hole, and the pin assembly includes a housing, at least one electrode lead, and an insulating part. The housing includes a tube including a top opening and a bottom opening. The tube is disposed in the central hole of the cell. The insulating part is fully or partially disposed in the tube. The at least one electrode lead penetrates through the insulating part; a lower end of the at least one electrode lead is electrically connected to a positive electrode and/or a negative electrode of the cell, thereby leading out the polarity of the cell.

Provided is a pouch type lithium secondary battery having a tubular passage structure. The pouch type lithium secondary battery having a tubular passage structure includes: a tubular passage structure having a passage of injecting an electrolyte from an outer portion of a pouch and discharging gas from an inner portion of the pouch by communicating the inner portion of the pouch with the outer portion of the pouch.

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 is a square secondary battery that is capable of reducing the amount of electrolyte compared to the related art. The square secondary battery includes a flat electrode group that is manufactured by winding positive and negative electrodes, a flat square battery can which stores the electrode group, a battery lid that seals an opening of the battery can, and an insulating member which is fixed to the battery lid and stored in the battery can. The square secondary battery includes a storage member made of a bag-like insulating sheet that has a volume smaller than the battery can, is stored in the battery can and stores the electrode group together with the electrolyte. The insulating member adheres to the battery lid to seal a space formed with respect to the battery lid, and is bonded to an opening of the storage member to seal the opening.

Provided is a lithium ion battery including a wound electrode body, in which a negative electrode active material layer 24 of the lithium ion battery is formed to be wider than a positive electrode active material layer 14 and has a facing portion 24c which faces the positive electrode active material layer 14 and a non-facing portions 24n which do not face the positive electrode active material layer 14. In a facing center region 24a of the facing portion 24c excluding regions 24b adjacent to the non-facing portion, plural straight measurement lines are set in a region ranging from one end portion to another end portion in the width direction. When the resistance of each measurement line is measured, in all the measurement lines, a highest resistance point is present in a length region of less than 15% from a center C.sub.0 of the facing center region 24a.