An ultracapacitor that includes an energy storage cell immersed in an advanced electrolyte system and disposed within a hermetically sealed housing, the cell electrically coupled to a positive contact and a negative contact, wherein the ultracapacitor is configured to output electrical energy within a temperature range between about −40 degrees Celsius to about 210 degrees Celsius. Methods of fabrication and use are provided.

A rubber valve body for sealed battery includes a rubber composition containing a resin in an amount of 20% by mass or more and an inorganic substance, wherein the melting point of the resin is in a range of 100 to 165° C.

A miniature electrochemical cell having a volume of less than 0.5 cc is described. The cell casing comprises an open-ended ceramic container having first and second via holes providing respective first and second electrically conductive pathways extending through the container. A metal lid secured to the open-end of the container by a gold seal provides the cell casing. An electrode assembly housed inside the casing comprises a cathode active material deposited on an inner surface of the ceramic container in contact with a current collector in electrical continuity with one of the conductive pathways. A solid electrolyte, preferably of LiPON (Li.sub.xPO.sub.yN.sub.z), is deposited on the cathode active material followed by an anode active material in contact with the other conductive pathway. The first and second conductive pathways can comprise platinum or gold. That way, the first and second conductive pathways serve as negative and positive terminals for the cell. The negative and positive terminals are configured for electrical connection to a load.

The present invention relates to a battery module. The battery module according to the present invention includes a housing having an internal accommodation space; and a plurality of battery cells disposed in the internal accommodation space, in which the housing includes a weld joint in which a first base material of a first aluminum-based alloy and a second base material of a second aluminum-based alloy are welded, and at least a partial region of a bead surface of the weld joint is located inward with respect to a reference plane, with an imaginary plane, which connects an outer surface of the first base material and an outer surface of the second base material in contact with the weld joint, as the reference plane.

The present invention relates to a battery module. The battery module according to the present invention includes a housing having an internal accommodation space; and a plurality of battery cells disposed in the internal accommodation space, in which the housing includes a weld joint in which a first base material of a first aluminum-based alloy and a second base material of a second aluminum-based alloy are welded, and at least a partial region of a bead surface of the weld joint is located inward with respect to a reference plane, with an imaginary plane, which connects an outer surface of the first base material and an outer surface of the second base material in contact with the weld joint, as the reference plane.

Provided are a pouch-type secondary battery, a manufacturing method thereof, and a pouch-type secondary battery manufactured therefrom. More particularly, a pouch-type secondary battery having an electrode assembly built therein wherein the pouch has an opening and one surface or both surfaces of the opening are sealed by a gas separation membrane including a porous substrate and a composite layer including a polymer, in which silver particles or a silver salt is dispersed, laminated on one surface or both surfaces of the porous substrate, a manufacturing method thereof, and a pouch-type secondary battery manufactured therefrom are provided.

A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case accommodating the electrode assembly and connected to the first electrode, the case having an opening exposing the electrode assembly; a cap plate coupled with the case and covering an outer region of the opening in the case, the cap plate having an opening exposing a central region of the opening in the cap plate and including an insulation layer coated on a surface thereof corresponding to the opening in the cap plate; and a terminal portion connected with the second electrode and bonded in an insulated manner to the cap plate. The terminal portion covers the opening in the cap plate, and the terminal portion includes a plating layer that is directly bonded to the insulation layer of the cap plate.

Provided herein are energy storage devices. In some cases, the energy storage devices are capable of being transported on a vehicle and storing a large amount of energy. An energy storage device is provided comprising at least one liquid metal electrode, an energy storage capacity of at least about 1 MWh and a response time less than or equal to about 100 milliseconds (ms).

A miniature electrochemical cell of a primary or a secondary chemistry with a total volume that is less than 0.5 cc is described. The cell has a casing comprising an annular sidewall supported on a lower plate opposite an upper closure plate. The upper plate has a sealed electrolyte fill port. A current collector having an opening aligned with the fill port contacts an inner surface of the upper plate. An anode active material contacts the lower plate and a cathode active material contacts the upper closure plate. A dielectric material coats the lower open end of the annular sidewall and a portion of the inner surface of the sidewall. A glass seals the dielectric material to the lower plate. An electrolyte contacts the electrode assembly. The cathode active material contacting the current collector has an opening aligned with the current collector opening and the electrolyte fill port.

A glass-metal feedthrough includes: an external conductor including steel, having a coefficient of expansion α.sub.external, and having an opening formed therein; an internal conductor disposed in the opening, the internal conductor including steel and having a coefficient of expansion α.sub.internal. The external conductor and the internal conductor are configured to not release nickel when in contact with a human or animal body or biological cells of a cell culture. A glass material surrounds the internal conductor within the opening and has a coefficient of expansion α.sub.glass. The coefficient of expansion α.sub.external of the external conductor and the coefficient of expansion α.sub.internal of the internal conductor both are greater than the coefficient of expansion α.sub.glass of the glass material.