Abstract: A negative electrode sheet and a battery applying the same are provided. The negative electrode sheet includes a current collector and a negative electrode active coating disposed on two opposite surfaces of the current collector. The negative electrode active coating contains a negative electrode active material, and the negative electrode active material includes graphite. The negative electrode sheet satisfies 0.0025??*?/PD?0.0065, where ? is a porosity of the negative electrode sheet, ? is a surface density of a single surface of the negative electrode sheet with a unit of g/cm2, and PD is a compacted density of the negative electrode sheet with a unit of g/cm3. The compacted density PD, the surface density ?, and the electrode sheet porosity ? of the negative electrode sheet form specific correlation relationships among one another.

Abstract: An engineered immune cell for immunotherapy, which has a relatively high persistence and/or survival rate of transplantation in a host organism, and a preparation method therefor.

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a user equipment (UE) may support two or more uplink switching periods for transmit chain switching. The UE may transmit a UE capability message indicating the UE capability to support a first uplink switching period and a second uplink switching period for transmit chain switching. The first uplink switching period and the second uplink switching period may each correspond to different switching periods associated with configuration switches between different transmit chain configurations of the UE. The UE and a base station may select an uplink switching period from among the first uplink switching period and the second uplink switching period. The UE may transmit an uplink data message to the base station after a preparation time that is based on the uplink switching period.

Abstract: An automatic cleaning apparatus includes: a mobile platform configured to automatically move on an operating surface; a cleaning module disposed on the mobile platform and including: a wet cleaning module configured to clean at least a part of the operating surface by means of wet cleaning; a lifting and lowering structure connected with the wet cleaning module and configured to enable the wet cleaning module to move vertically relative to the mobile platform; and a cleaning liquid module for providing cleaning liquid for the wet cleaning module; and a driving mechanism, including a first driving component and a second driving component.

Abstract: An automatic cleaning device includes a mobile platform, a lifting station, a cleaning module, a liquid supplying module, and a collecting module. The mobile platform is configured to automatically move in a target direction on a surface to be cleaned. The lifting station is connected to the mobile platform and configured to move upwards or downwards with respect to the mobile platform. The cleaning module is connected to the lifting station and configured to clean the surface to be cleaned; the liquid supplying module is configured to provide cleaning liquid to the surface to be cleaned; and the collecting module is configured to collect the cleaning liquid. A height of the cleaning module of the automatic cleaning device is adjustable, and the automatic cleaning device has a great cleaning strength and is capable of collecting dirty cleaning liquid, thus, the automatic cleaning device can be applied broadly.

Abstract: The invention provides a lithium-ion battery electrode piece and a lithium-ion battery including the same. The electrode piece includes an electrode active material layer disposed on the surface of the current collector and a protective layer disposed on the surface of the electrode active material layer. The protective layer is composed of metal oxide layers and conductive layers alternately stacked in the horizontal direction. The area ratio of the metal oxide layers to the conductive layers is 4:1-1:4, and the thickness ratio is 0.5:1-1:1. According to the invention, by regulating the shape and ratio of the high temperature stability material and the conductive active material on the electrode piece in the process of coating the protective layer, the amount of the two coating materials is precisely controlled to implement the precise regulation of the high temperature stability and rate performance of the electrode piece.

Abstract: The disclosure belongs to the technical field of batteries, and particularly relates to a current collector component, which includes a first current collector piece, a second current collector piece, and an insulator, the first current collector piece and the second current collector piece being in insulated connection through an insulator; the second current collector piece includes a body part and a welding part, the body part and the welding part forming an included angle, and a welding surface of the welding part and a surface of the body part forming an included angle. The structure of the disclosure has high welding safety, may increase the utilization rate of the internal space of a housing, and may prevent the damage to a cell caused by laser penetration welding. In addition, the disclosure further discloses a secondary battery.

Abstract: An airflow sensing seat comprises a seat body (1), an airbag (2), a sensing assembly (3), and a micro control unit (4). The airbag (2) is provided in the seat body (1). A deformable support structure (21) is provided in the airbag (2). The support structure (21) is used to maintain an appropriate amount of gas in the airbag (2). A transmission mechanism (5) is provided between the airbag (2) and the sensing assembly (3). The transmission mechanism (5) is used to transmit gas disturbance in the airbag (2) to the sensing assembly (3). The sensing assembly (3) is used to generate a corresponding analog electrical signal according to the gas disturbance. The sensing assembly (3) is electrically connected to the micro control unit (4). The sensing assembly (3) transmits the analog electrical signal to the micro control unit (4). The micro control unit (4) is used to perform analysis and computation on the analog electrical signal so as to acquire a biological signal of a user.

Abstract: A fan includes a rotor; a stator; a first bearing assembly disposed at a radial outer side of an end of the rotor; and an impeller including an impeller body, where the impeller body is provided with a receiving cavity for receiving the first bearing assembly; and one end of the first bearing assembly is disposed in the receiving cavity, and the rotor, the first bearing assembly and the impeller body are disposed coaxially.

Abstract: Embodiments of the present application provide a vehicle control method, module, and system, a device and a medium. The method includes: acquiring, under a condition that it is determined to install a target battery provided by a battery swapping station for the vehicle, a network address of a first battery management unit of the target battery; requesting to establish a wireless communication connection between a control module and the first battery management unit, based on the network address of the first battery management unit of the target battery; transmitting, under a condition that the wireless communication connection between the control module and the first battery management unit is successfully established, a first prompt signal to a target object, where the first prompt signal is used to prompt the target object to perform a relevant operation for allowing the vehicle to leave a battery swapping area.

Abstract: Embodiments of the present application provide a server of a battery swapping station, a charging method and system for a battery, a device and a medium. The method is applied to a server of a battery swapping station, and the method includes: acquiring version information of a first software version after a vehicle mounted with a power battery arrives at the battery swapping station, wherein the first software version is a software version of a first battery management unit of the power battery; controlling, under a condition that the version information of the first software version is lower than version information of a second software version stored in the server, a second battery management unit of the battery swapping station to update the first software version of the first battery management unit to the second software version.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information that indicates an uplink transmit switching configuration for performing uplink transmit switching between a first component carrier and a second component carrier and a sounding reference signal (SRS) carrier switching configuration for performing SRS carrier switching between the second component carrier and a third component carrier, wherein the configuration information is associated with a maximum number of allowable switches over an amount of time. The UE may transmit, based at least in part on the configuration information, one or more signals associated with performing at least one of uplink transmit switching or SRS carrier switching. Numerous other aspects are described.

Abstract: A battery formation apparatus includes a DC-DC conversion module, an additional power supply, and a control circuit. Low-voltage and high-voltage terminals of the DC-DC conversion module are electrically connected to the control circuit and a DC bus, respectively. The DC-DC conversion module is configured to, when a battery unit discharges into the battery formation apparatus, convert a first voltage input into a second voltage greater than the first voltage, and output the second voltage. The additional power supply is electrically connected to the control circuit, and configured to output an additional voltage. The control circuit is electrically connected to the battery unit, the low-voltage terminal of the DC-DC conversion module, and the additional power supply. The control circuit is configured to serially connect the low-voltage terminal of the DC-DC conversion module, the battery unit, and the additional power supply when the battery unit discharges into the battery formation apparatus.

Abstract: Among other things, embodiments of the present disclosure can help to automatically generate images displaying activity-based information and distribute such images to other users, such as members of a social network. The image may be modified based on activity data associated with other users and/or from other activity sensors.

Abstract: An energy storage apparatus includes a control circuit, multiple battery clusters connected in parallel, and switch circuits corresponding to the battery clusters. The switch circuit includes a first switch and a protection circuit connected in parallel. The control circuit is connected to each first switch and each protection circuit. Each battery cluster is connected to the corresponding first switch and protection circuit. The control circuit is configured to control, according to a high voltage on signal, the protection circuit to be closed and the first switch to be opened.

Abstract: The present invention is applicable to the field of aerospace component assembly deviation analysis, and provides a magazine assembly deviation modeling method to characterize the uncertainties in the local multi-parallel dimensional chains in the magazine bolted assembly structure, and to predict the spatial attitude deviation as well as the statistical distribution of the assembled magazine by tolerance analysis and randomness simulation of the assembly. The magazine assembly deviation modeling method described in the present invention can characterize the transfer and accumulation of complex three-dimensional tolerances in the multi-level magazine assembly process.

Abstract: The present invention discloses a blade dimensional chain modeling method considering mortise-tenon connection, which relates to the technical field of aerospace component assembly deviation analysis. The blade dimensional chain modeling method described in the present invention can be used not only for the position deviation prediction in the initial state of the blade tip after assembly, but also for the deviation analysis of any position of the blade. The method is an explicit mathematical model with the characteristics of simplicity and high efficiency of solution.

Abstract: The disclosure discloses a stuck staple processing mechanism of an electric stapler and the electric stapler. The stuck staple processing mechanism of the electric stapler includes a driving mechanism, a transmission mechanism, a pop-up staple channel assembly, a controller and a pop-up mechanism. The transmission mechanism is connected with a pop-up switch of the pop-up staple channel assembly through the pop-up mechanism. When the controller controls the driving mechanism to rotate along a staple placing direction, the pop-up mechanism does not make the staple channel assembly act. When the controller controls the driving mechanism to rotate in an opposite direction of staple placing, the transmission mechanism makes the pop-up switch act through the pop-up mechanism to pop up a staple channel of the staple channel assembly, so as to facilitate a removal of a stuck staple.