A case-neutral electrochemical cell has an electrode assembly comprising a separator positioned between an anode and a cathode housed inside a casing. The casing supports a co-axial glass-to-metal seal comprising an inner insulating glass hermetically sealed to a terminal pin and to the inner surface of a first or inner ferrule. An outer insulating glass is hermetically sealed to the outer surface of the inner ferrule and the inner surface of a second or outer ferrule, and the outer ferrule is secured to an opening in the casing. Then, one of the anode and the cathode is connected to the terminal pin and the other of the anode and the cathole is connected to the first or inner ferrule. An electrolyte is provided in the casing to activate the electrode assembly.

A case-neutral electrochemical cell has an electrode assembly comprising a separator positioned between an anode and a cathode housed inside a casing. The casing supports a co-axial glass-to-metal seal comprising an inner insulating glass hermetically sealed to a terminal pin and to the inner surface of a first or inner ferrule. An outer insulating glass is hermetically sealed to the outer surface of the inner ferrule and the inner surface of a second or outer ferrule, and the outer ferrule is secured to an opening in the casing. Then, one of the anode and the cathode is connected to the terminal pin and the other of the anode and the cathode is connected to the first or inner ferrule. An electrolyte is provided in the casing to activate the electrode assembly.

A case-neutral electrochemical cell has an electrode assembly comprising a separator positioned between an anode and a cathode housed inside a casing. The casing supports a co-axial glass-to-metal seal comprising an inner insulating glass hermetically sealed to a terminal pin and to the inner surface of a first or inner ferrule. An outer insulating glass is hermetically sealed to the outer surface of the inner ferrule and the inner surface of a second or outer ferrule, and the outer ferrule is secured to an opening in the casing. Then, one of the anode and the cathode is connected to the terminal pin and the other of the anode and the cathode is connected to the first or inner ferrule. An electrolyte is provided in the casing to activate the electrode assembly.

In a battery manufacturing method using a battery manufacturing apparatus, the battery manufacturing apparatus including a pressing unit, a measurement device, and a controller, the battery manufacturing method includes steps of (a) pressing a battery member by a pressing unit, (b) measuring, after the pressing step (a), by the measurement device, characteristics of the battery member, which has been pressed by the pressing unit, and (c) controlling, after the measurement step (b), by the controller, a state of pressing of the battery member by the pressing unit in accordance with a measurement result of the measurement device.

The present invention relates to a rechargeable battery with a label film, a method for manufacturing a rechargeable battery, and a method for manufacturing a label film for a rechargeable battery. Regarding a rechargeable battery with a label film attached to a case, the label film includes a film base, an antenna pattern formed on a first side of the film base, and an information layer formed on a second side of the film base and on which a character including information on the rechargeable battery is written.

A charging circuit may include a battery unit in which a rechargeable battery is mounted; a charging unit configured to provide a charging current to the rechargeable battery in the battery unit, based on a direct current (DC) voltage converted from an alternating current (AC) voltage, and configured to charge the rechargeable battery; and/or a controller configured to control the charging unit such that the charging unit provides the rechargeable battery with a first charging current following a first current profile in a first charging mode as the charging current at least in a first period of the first charging mode, based on the charging current, a battery voltage of the rechargeable battery, and a temperature of the rechargeable battery, wherein the first current profile is smaller than an available maximum current in the first period.

A biaxially stretched microporous film includes band-like polyethylene material having a film width of not less than 300 mm wherein distribution of physical properties in the film width direction and the thickness variation is less than 1.00 m and air permeability variation is not greater than 50 seconds/100 mL. The polyethylene microporous film has excellent planarity and uniformity of physical properties required when used in a large-area configuration as a separator film of a lithium ion battery for automobiles or consumer electronics.

A swelling tape for filling a gap and a method of filling a gap are provided. The swelling tape can be applied within the gap having a fluid to realize a 3D shape thereby filling the gap, and be used to fix a subject forming the gap as necessary.

A swelling tape for filling a gap and a method of filling a gap are provided. The swelling tape can be applied within the gap having a fluid to realize a 3D shape thereby filling the gap, and be used to fix a subject forming the gap as necessary.

A method for cell winding and a system for cell winding are provided. The method includes feeding materials, preparing winding, embossing, and winding. The feeding materials is carried out to obtain a separator, a cathode electrode, and an anode electrode, where the cathode electrode satisfies that: after pre-winding, a first cathode tab of the cathode electrode and a second cathode tab of the cathode electrode are arranged with a surplus misalignment. A starting end of the separator, a starting end of the cathode electrode, and a starting end of the anode electrode are fixed to a winding device. The cathode electrode is embossed by a rolling device, such that the first cathode tab is aligned with the second cathode tab after winding. The embossing is configured to enable the surplus misalignment between the first cathode tab and the second cathode tab after the winding to be zero.