A power supply component includes: a housing having an accommodating portion; and a holder arranged on the accommodating portion, a start airway being arranged on the holder, a vent channel being defined between an end of the holder connectable to a vaporization component and the housing, the vent channel being in communication with the start airway and outside air such that the outside air enters the start airway through the vent channel.

A battery module includes a heat-shrinkable tube serving as a module housing. The battery module includes a cell assembly having a plurality of pouch-type secondary batteries; a bus bar assembly having a bus bar frame and a bus bar mounted to an outer surface of the bus bar frame; and a heat-shrinkable tube formed to be shrunk by heat and configured so that the cell assembly is located therein, the heat-shrinkable tube being provided to surround a side surface of the cell assembly and a portion of the bus bar assembly.

Battery unit for an electronic price label and an electronic price label, which includes a separate, external, replaceable battery unit having a battery, and a fastening means, which may be detachably fasten the battery unit to the frame part of the electronic price label.

Disclosed herein are a multilayer electrode and a lithium secondary battery including the same. The multilayer electrode includes an electrode current collector for transmitting electrons between an external wire and an electrode active material and three or more electrode mixture layers sequentially applied to the electrode current collector, wherein each of the electrode mixture layers includes an electrode active material and a conducting agent, and wherein the content of the conducting agent of one of adjacent electrode mixture layers that is relatively close to the current collector in the direction in which the electrode mixture layers are formed is higher than that of the conducting agent of the other of the adjacent electrode mixture layers that is relatively distant from the current collector.

Embodiments of the present invention relate to modular devices. The modular device comprises an enclosure having a main body and an extending member. A battery positioned at least within the main body. The extending member includes a coupling element. The coupling element is designed to provide electrical communication with another extending member when the extending member and the other extending member are in communication with each other. The coupling element is designed to provide structural support when in communication with the other extending member. The coupling element is in electrical communication with the battery. The modular device is designed in a manner to couple with another modular device via the coupling element.

An energy storage system, including a housing in which a plurality of battery cells are arranged. The plurality of battery cells are spaced with respect to each other by a device arranged between every two respective adjacent battery cells of the plurality of battery cells, so that a space is created therein. At least one emergency cooling channel is associated with the space.

An energy storage system, including a housing in which a plurality of battery cells are arranged. The plurality of battery cells are spaced with respect to each other by a device arranged between every two respective adjacent battery cells of the plurality of battery cells, so that a space is created therein. At least one emergency cooling channel is associated with the space.

A dual-airway intake structure used for an aerosol generating device includes a base and a sensor. The base is provided with a sensing cavity: the sensing cavity is in communication with an air outlet passage of the aerosol generating device; a mounting portion is provided in the sensing cavity; the mounting portion is provided with a mounting cavity; the sensor is mounted on the mounting portion and seals the mounting cavity: the base is provided with air inlets and a communicating hole; the air inlets are in communication with the sensing cavity and the outside atmosphere; the communicating hole is in communication with the mounting cavity and the outside atmosphere; the mounting portion is provided with a communicating groove; the communicating groove is in communication with the mounting cavity and the sensing cavity.

A dual-airway intake structure used for an aerosol generating device includes a base and a sensor. The base is provided with a sensing cavity: the sensing cavity is in communication with an air outlet passage of the aerosol generating device; a mounting portion is provided in the sensing cavity; the mounting portion is provided with a mounting cavity; the sensor is mounted on the mounting portion and seals the mounting cavity: the base is provided with air inlets and a communicating hole; the air inlets are in communication with the sensing cavity and the outside atmosphere; the communicating hole is in communication with the mounting cavity and the outside atmosphere; the mounting portion is provided with a communicating groove; the communicating groove is in communication with the mounting cavity and the sensing cavity.

A secondary battery includes: an electrode assembly including a negative electrode tab at a first end and a positive electrode tab at a second end; a case including a pair of first side portions facing each of a pair of long side portions of the electrode assembly, and a pair of second side portions facing each of a pair of short side portions of the electrode assembly, the case being open in directions of the negative electrode tab and the positive electrode tab; and a retainer between at least one of the second side portions and the electrode assembly and including a concave-convex structure.