A battery includes a shell, a core received in the shell and having first and second electrode tabs, and first and second protection components. Each of the first and second protection components includes two insulating layers and a conducting layer disposed between two insulating layers. The conducting layer of the first protection component defines a first end electrically connected to the first electrode tab and a second end configured as a free end. The conducting layer of the second protection component defines a first end electrically connected to the second electrode tab and a second end configured as a free end.

The present invention aims to provide a power supply apparatus capable of suppressing a short circuit that occurs between adjacent battery cells. The power supply apparatus includes: a plurality of battery cells in which positive electrodes and negative electrodes are provided alternately and inversely with each other; a plurality of bus bars arranged in a straight line so as to series-connect the plurality of battery cells; a sheet-like insulation film disposed on at least one surface side of the plurality of bus bars; and a resin frame for fixing the plurality of battery cells, wherein an insulation portion for insulating the adjacent battery cells from each other is provided on the insulation film or in the resin frame.

A fuse unit attachment structure includes a fuse bracket to be mounted on a fuse unit directly attachable to a battery and a bracket connecting member for connecting the fuse bracket to the battery. The fuse bracket has a unit supporting portion to support the fuse unit so as to be movable in a direction perpendicular to a lateral surface of the battery and a connecting member engaging portion to be engaged with the bracket connecting member so as to be movable in a direction along the lateral surface of the battery.

A battery module is provided including a secondary battery unit having a plurality of secondary batteries spaced from each other, the plurality of secondary batteries each including electrode terminals and a safety vent which are arranged on one side of the secondary battery unit; a compression plate wrapping at least a portion of the secondary battery unit and compressing the secondary battery unit together; and an insulation cover covering the electrode terminals and the safety vent, the insulation cover including a duct connected to the safety vent to guide gases exhausted from the safety vent to a first location, and a vent hole member coupled to the duct at the first location.

A battery balancing system for parallel connected batteries for balancing batteries that are at dissimilar voltages. The system has first and second buses, connected by a current limiter. A high bus takes energy from the highest voltage battery or batteries in the system and transfers the energy through the current limiter to the low bus, which in turn delivers energy to the lowest voltage battery or batteries in the system.

Systems and methods for overheating protection in a liquid cooled vehicle battery are disclosed. Systems can include a battery housing enclosing at least one electrochemical cell and a temperature dependent fuse connected in series with the at least one electrochemical cell. A cooling system may circulate liquid coolant through the battery housing. In the event of a cooling system failure, the temperature dependent fuse may blow before the temperature of the at least one electrochemical cell increases enough to damage the battery.

A rectangular secondary battery includes a current breaking mechanism with improved rigidity against vibration and impact. The current breaking mechanism is interposed in the middle of a current path electrically connected between an external terminal and a wound electrode group to break the current path by the rise of battery internal pressure. The current breaking mechanism includes a connection electrode arranged inside a battery lid and electrically connected to the external terminal, and a conductive plate bonded to the connection electrode and deformed by the rise of the battery internal pressure. The connection electrode includes a tabular member having a through hole in communication with the outside of the battery opening on a planar portion. The conductive plate includes a dome-shaped diaphragm portion gradually reducing its diameter as shifting in an axial direction and a flange portion extending radially outward from an outer peripheral portion of the diaphragm portion.

A battery for use in electronic devices and which is safely ingested into a body and a related method of making the battery. The battery includes an anode, a cathode and a quantum tunneling composite coating. The quantum tunneling composite coating covers at least a portion of at least one of the anode or the cathode and provides pressure sensitive conductive properties to the battery including a compressive stress threshold for conduction. The compressive stress threshold may be greater than a pre-determined applied stress in a digestive tract of the body in order to prevent harm if the battery is ingested. The battery may include a waterproof seal that extends between the quantum tunneling composite coating and a gasket separating the anode and cathode to inhibit the battery from short circuiting in a conductive fluid below the compressive stress threshold.

An energy storage device includes an electrode assembly, a case, a terminal part, and a current collector, wherein the terminal part has: an external terminal having at least a part exposed to outside of the case; a conduction member configured to make the external terminal and the current collector conductive; a decoupling mechanism configured to decouple the conduction member, or hinder a conduction state of the conduction member; and an auxiliary terminal disposed spaced from the external terminal, and having at least a part exposed to the outside of the case, the auxiliary terminal being electrically connected to the current collector.

A battery system improving operation reliability of a swelling current interrupt device (CID) is provided. The battery system includes a cooling plate that forms an appearance of a battery in which the swelling CID interrupting a current flow is mounted and includes a swelling aperture formed therein. The swelling aperture induces an expansion of a pouch in which the swelling CID is embedded. Therefore, since the swelling aperture is formed in the cooling plate, improved operation reliability of the swelling CID than a battery system according to related art in which operation reliability was varied based on a thickness of a pouch cell is obtained.