An electrochemical energy storage module and a vehicle having an energy storage module of this type. At least one energy storage cell and at least one bridging device are electrically connected in parallel. The bridging device has a first current conductor having at least one bridging point, which has a bridging point cross-section, and a second current conductor, which is spaced apart from the first current conductor by a gap. The bridging device also has a bridging switch for establishing a first partial electrical connection between the first current conductor and the second current conductor and has a bridging material arranged in the region of the bridging point.

In aspects of the disclosure, a fuel cartridge wherein the fuel is in a powdered form is admixed with inert materials such as alumina or other ceramics to improve thermal conductivity. Said cartridge having fuel zones, heating zones, and controllers to selectively heat fuel zones and thereby generate hydrogen via decomposition of fuel is disclosed.

An overvoltage protection element with a housing, an overvoltage-limiting component arranged in the housing, and with two connection elements for electrically connecting the overvoltage protection element to the current or signal path to be protected, wherein, normally, the connection elements are each in electrical contact with a pole of the overvoltage-limiting component. Reliable and effective electrical connection in the normal state and reliable isolation of a defective overvoltage-limiting component are ensured by the fact that a thermally expandable material is arranged within the housing in a way that, in the event of thermal overloading of the overvoltage-limiting component, the position of the overvoltage-limiting component is changed by expansion of the thermally expandable material relative to the position of the connection elements in a way that causes at least one pole of the overvoltage-limiting component to be out of electrical contact with the corresponding connection element.

Certain aspects are directed to a thermal fuse for preventing overheating of RF devices in a telecommunication system. In one embodiment, an RF thermal fuse comprises a body: a conductive bolt positioned in the body, the conductive bolt having a length sufficient to provide an impedance at a point of protection on a transmission line in response to the conductive bolt contacting a live conductor of the transmission line, wherein the impedance reflects a portion of the incident power of an RF signal from an RF signal source; and a driving mechanism that causes the conductive bolt to selectively contact the live conductor in response to an event.

An overvoltage protection device includes: input terminals; output terminals; at least two overvoltage protection elements for forming staggered protection levels; and at least one longitudinal element electrically connecting an input terminal and an output terminal to conduct an operating current. In order to form a first protection level, a first overvoltage protection device is connected to two input terminals on an input side upstream of the at least one longitudinal element, and, in order to form a second protection level, a second overvoltage protection element is connected to two output terminals on an output side and downstream of the at least one longitudinal element, the at least one longitudinal element influencing a response of the at least two overvoltage protection elements in case of an overvoltage. The at least one longitudinal element is provided with a thermal overload protection device for reducing a possible current flow.

An electrochemical energy storage module and a vehicle having an energy storage module of this type. At least one energy storage cell and at least one bridging device are electrically connected in parallel. The bridging device has a first current conductor having at least one bridging point, which has a bridging point cross-section, and a second current conductor, which is spaced apart from the first current conductor by a gap. The bridging device also has a bridging switch for establishing a first partial electrical connection between the first current conductor and the second current conductor and has a bridging material arranged in the region of the bridging point.

An overvoltage protection device includes: input terminals; output terminals; at least two overvoltage protection elements for forming staggered protection levels; and at least one longitudinal element electrically connecting an input terminal and an output terminal to conduct an operating current. In order to form a first protection level, a first overvoltage protection device is connected to two input terminals on an input side upstream of the at least one longitudinal element, and, in order to form a second protection level, a second overvoltage protection element is connected to two output terminals on an output side and downstream of the at least one longitudinal element, the at least one longitudinal element influencing a response of the at least two overvoltage protection elements in case of an overvoltage. The at least one longitudinal element is provided with a thermal overload protection device for reducing a possible current flow.

A fuse element comprises a low melting point metal layer, a first high melting point metal layer having a higher melting point than a melting point of the low melting point metal layer, and a restricting portion including a high melting point material having a higher melting point than a melting point of the low melting point metal layer and configured to restrict flow of the low melting point metal or deformation of a layered body constituted by the first high melting point metal layer and the low melting point metal layer.

A fuse element comprises a low melting point metal layer, a first high melting point metal layer having a higher melting point than a melting point of the low melting point metal layer, and a restricting portion including a high melting point material having a higher melting point than a melting point of the low melting point metal layer and configured to restrict flow of the low melting point metal or deformation of a layered body constituted by the first high melting point metal layer and the low melting point metal layer.

The present invention discloses a thermal fuse having dual metal elastic clamps, comprising: an insulating cylindrical tube; a first metal cap, a temperature sensing chamber formed by the first metal cap, the second metal tube and the inner side wall of the middle part of the through hole. The temperature sensing chamber axially arranges a plurality of components in the following sequence: a compressed spring; an insulating supporting pillar; a second metal elastic clamp; a connecting pillar a first metal elastic clamp; an organic temperature sensing body capable of melting when heating. The first metal elastic clamp, the second metal elastic clamp and the connecting pillar forms a movable conductive bridge. The movable conductive bridge slides flexibly in the temperature sensing chamber and has low contacting resistance with the first metal cap and the second metal tube. The above structure can withstand large current and has high reliability.