Abstract: Provided an end cover assembly, a battery cell, a battery, and an electric apparatus. The end cover assembly in the embodiments of the present application includes: an end cover provided with a first through hole; and an electrode leading-out member including a connecting plate and a post terminal protruding from a surface of the connecting plate, at least part of the post terminal being disposed in the first through hole, and the connecting plate being located on one side of the end cover, where the connecting plate is connected to a tab of an electrode assembly. In the technical solutions of the embodiments of the present application, the electrode leading-out member is provided, which increases contact area between a post and a tab, expands overcurrent area between the post terminal and the connecting plate, reduces internal resistance, lowers temperature rise, and improves the safety performance of a battery cell.

Abstract: A top cover assembly comprises: a body, the body being provided with a first electrode hole and a second electrode hole in a thickness direction of the body itself, and the first electrode hole and the second electrode hole being spaced in a length direction of the body; and a protruding portion protruding in the thickness direction of the body to be formed on a side surface of the body that is configured to face an interior of the shell, the protruding portion being located between the first electrode hole and the second electrode hole in the length direction of the body, wherein the protruding portion is located on a side close to the first electrode hole in the length direction of the body, and the length direction of the body is perpendicular to the thickness direction of the body.

Abstract: The present application provides an end cover assembly for a battery cell. The end cover assembly includes: an end cover, an exhaust mechanism being provided on the end cover; and an insulating component provided on the side of the end cover close to the interior of the battery cell. An exhaust channel is provided between the insulating component and the end cover to communicate the exhaust mechanism with the interior of the battery cell. The end cover assembly can improve the exhaust efficiency of the battery cell, thereby improving the reliability of the battery cell.

Abstract: The present application provides an end cover assembly, a battery cell, a battery, and an electrical device, relating to the field of batteries. The end cover assembly includes an end cover, an electrode terminal, and an insulating member. The end cover is used for closing an opening of a shell. The end cover has a mounting portion, which confines a mounting hole. The electrode terminal at least partially passes through the mounting hole. The insulating member includes a first insulating portion, a second insulating portion, and a third insulating portion connected sequentially. The second insulating portion is at least partially located in the mounting hole, and the first insulating portion and the third insulating portion are separately located on two sides of the mounting portion in a thickness direction of the end cover to cover the mounting portion.

Abstract: An airborne short message communication method, apparatus, device and system, and a readable storage medium. In the technical solution provided in the present invention, the method comprises: an airborne short message communication device acquiring a message control command; by means of the message control command, selecting a target message type from among selectable message types and determining a sending frequency; generating a target message corresponding to the target message type; and sending the target message according to the determined sending frequency. According to the technical solution provided in the present invention, the problems of delayed communication and large consumption caused by an unchanging message type and message sending frequency can be avoided, and in an emergency state, the message type and the message sending frequency can be changed, such that an important message can be sent in a timely manner.

Abstract: Disclosed are an airborne electromagnetic wave device, and an anti-interference system, method and apparatus. The anti-interference method comprises: detecting an interference source, and obtaining a working frequency and a bandwidth of the interference source; calculating an interfered bandwidth range at least on the basis of the working frequency and bandwidth of the interference source; and controlling an electrically tunable filter provided in a transmission channel of the airborne electromagnetic wave device to filter signals within the interfered bandwidth range.

Abstract: Disclosed are an airborne electromagnetic wave device, and an anti-interference system, method and apparatus. The anti-interference method comprises: detecting an interference source, and obtaining a working frequency and a bandwidth of the interference source; calculating an interfered bandwidth range at least on the basis of the working frequency and bandwidth of the interference source; and controlling an electrically tunable filter provided in a transmission channel of the airborne electromagnetic wave device to filter signals within the interfered bandwidth range.

Abstract: An airborne short message communication method, apparatus, device and system, and a readable storage medium. In the technical solution provided in the present invention, the method comprises: an airborne short message communication device acquiring a message control command; by means of the message control command, selecting a target message type from among selectable message types and determining a sending frequency; generating a target message corresponding to the target message type; and sending the target message according to the determined sending frequency. According to the technical solution provided in the present invention, the problems of delayed communication and large consumption caused by an unchanging message type and message sending frequency can be avoided, and in an emergency state, the message type and the message sending frequency can be changed, such that an important message can be sent in a timely manner.

Abstract: The present invention provides an airborne BeiDou system and method for application thereof, the airborne BeiDou system comprising: an airborne communication navigation monitoring system which integrates a BeiDou application software module of a BeiDou navigation communication sub-system and a BeiDou protocol stack software module; a BeiDou transceiver connected to said airborne communication navigation monitoring system; a BeiDou server connected to said BeiDou transceiver.