Abstract: A display panel, a display device, and a preparing method of a display panel. The display panel includes an array substrate; a first electrode layer located on a side of the array substrate, the first electrode layer includes a pixel electrode. A pixel definition layer located on a side of the first electrode layer away from the array substrate, the pixel definition layer includes an isolation portion and a pixel opening surrounded by the isolation portion. A second electrode layer located on a side of the pixel definition layer away from the array substrate, the second electrode layer includes a second electrode and an opening, the second electrode includes a body portion and an edge portion arranged as extending from the body portion and toward the opening.

Abstract: A battery heating apparatus includes a voltage transformation module and a control module. The voltage transformation module includes a first voltage transformation circuit configured to connect a charging apparatus, a first switch module connected to the first voltage transformation circuit, a second voltage transformation circuit configured to connect a power battery, and an energy storage element and a second switch module connected to the second voltage transformation circuit. The control module is configured to, in a first heating mode, control the first switch module to turn off the first voltage transformation circuit, and control the second switch module so that the second voltage transformation circuit and the energy storage element form a loop for discharging from the power battery to the energy storage element and a loop for charging the power battery by the energy storage element, for heating the power battery during discharging and charging.

Abstract: A display panel, a display device and a method of manufacturing the display panel. The display panel includes a display region, and the display region includes a first region and a second region. The display panel includes a base body and a first electrode layer. At least a portion of the first electrode layer is located on a side of the base body, the first electrode layer includes a plurality of first electrodes and a plurality of openings, the first electrodes are located within the first region, and the openings are located within the second region. The display panel is provided with a blocking structure which is configured to block the first electrodes from extending to the second region.

Abstract: A method for monitoring battery cell data comprises: collecting the first set of the battery cell data in real time; retrieving estimation parameter data corresponding to the first set of the battery cell data from a battery cell parameter database in real time; based on the estimation parameter data of the first set of the battery cell data, processing the first set of the battery cell data through a battery model to acquire the second set of the battery cell data in real time; acquiring an error value between the first set and the second set of the battery cell data in real time; acquiring a monitoring result of the first set of the battery cell data in real time based on the error value and an error threshold, the monitoring result is either the error value being greater than the error threshold, or less than the error threshold.

Abstract: The invention provides a method and system for identifying electrochemical model parameters based on capacity change rate. The method includes: acquiring operating data from an actual operation process of a lithium battery and cleaning an actual operating data set from the operating data; generating a simulated operating data set through simulation of a preset electrochemical model; performing parameter identification based on a preset first loss function, the actual operating data set, and the simulated operating data set; calculating capacity convergence coefficient; comparing capacity convergence coefficient with a preset convergence threshold value; when greater than the preset convergence threshold value, regenerating the simulated operating data set; and when not greater than the preset convergence threshold value, outputting an electrochemical model parameter set as a parameter identification result.

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: 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: 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: 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 invention discloses a method, a system, and a storage medium for simulating a data set based on an electrochemical model. The method includes the following steps: setting geometric parameters and electrochemical parameters of a lithium battery; generating a volume average concentration of positive lithium ions and a volume average concentration of negative lithium ions under a preset state of charge through a simulation of the electrochemical model; calculating a capacity of the lithium battery through the simulation of the electrochemical model; after adjusting a current state of charge of the lithium battery, inputting a simulated operating current to acquire a simulated data set. The invention can generate operating data of a virtual battery by adjusting lithium battery electrochemical model parameters, facilitating management by a BMS system of battery operating states based on an electrochemical model of a virtual battery.

Abstract: A display panel and an evaporation method for the display panel. The display panel includes: a first electrode, a second electrode and a light emitting structure layer positioned between the first electrode and the second electrode. The light emitting structure layer includes: a light emitting layer; an electron transport layer arranged on a side of the light emitting layer facing away from the first electrode, and including a plurality of doped layers that are stacked; an electron injection layer positioned on a side of the electron transport layer facing away from the light emitting layer. The electron transport layer has a reference plane positioned in the middle of the electron transport layer along the thickness direction of the display panel.

Abstract: Disclosed is a display panel, which solves the problem that water and oxygen easily intrude from the edge of the isolation layer in the prior art. The display panel includes an array substrate, including a display area and a frame area surrounding the display area; a protrusion located in the frame area, the protrusion comprising a first side wall on a side close to the display area and a second side wall on a side away from the display area, at least one of the first side wall and the second side wall comprising a concave area; and an isolation layer stacked on one side of the array substrate and the protrusion, the protrusion being located in an orthographic projection of the isolation layer on the array substrate.

Abstract: Provided is a display panel. The display panel includes a substrate; multiple light-emitting structures disposed on the substrate; an obstruction layer disposed on the substrate and surrounding the multiple light-emitting structures; an isolation layer disposed on the substrate and covering the multiple light-emitting structures, where at least part of the isolation layer covers the obstruction layer; and an encapsulation layer disposed on the substrate and covering the isolation layer and the obstruction layer. A manufacturing method for the display panel includes forming the obstruction layer surrounding the multiple light-emitting structures on the substrate and forming the isolation layer covering the multiple light-emitting structures and partially covering the obstruction layer.

Abstract: A display panel and a display device. The display panel includes a first electrode layer, a second electrode layer, and N light-emitting structural layers stacked between the first electrode layer and the second electrode layer; each of the light-emitting structural layers includes a plurality of light-emitting units corresponding to respective sub-pixels, the light-emitting unit includes a plurality of functional film layers arranged in a stacked manner, one of the plurality of functional film layers is a light-emitting layer; the first electrode layer and the light-emitting layers in the i-th light-emitting structural layer have a plurality of first optical lengths provided therebetween, the first optical lengths corresponding to the sub-pixels of a same color have a same value, and the first optical length has a linear relationship with a wavelength of light emitted by the light-emitting unit, i is 1, 2, 3 . . . N.

Abstract: Provided in the present application a display panel, comprising a substrate, wherein the substrate comprises a display area, an aperture area, located in the display area; and a partition area, surrounding the aperture area and provided with at least one partition ring disposed around the aperture area, wherein a partition groove is disposed on at least one side of the partition ring, wherein the partition groove comprises a third partition groove, a first partition groove, and a second partition groove that are disposed on a side along a first direction away from the substrate in sequence, and communicated with each other, and the first partition groove is used to separate an organic material layer on a side wall of the second partition groove from another organic material layer on a side of the third partition groove.

Abstract: An application authoring tool and application program system for medical pumps provides each pump with a standardized hardware interface abstracting the hardware and tasks done by the pump in order to provide a uniform interface for application programmers across different pump types. The standardized interface may translate hardware communication with hardware on different machines, do hardware signal range checking, and handle routine but detailed hardware tasks such as error reporting. A system for installing multiple applications on pumps allows a flexible trade-off between reducing pump programming time by loading specialized application programs and preserving pump flexibility by allowing the user to select among multiple applications.

Abstract: An application authoring tool and application program system for medical pumps provides each pump with a standardized hardware interface abstracting the hardware and tasks done by the pump in order to provide a uniform interface for application programmers across different pump types. The standardized interface may translate hardware communication with hardware on different machines, do hardware signal range checking, and handle routine but detailed hardware tasks such as error reporting. A system for installing multiple applications on pumps allows a flexible trade-off between reducing pump programming time by loading specialized application programs and preserving pump flexibility by allowing the user to select among multiple applications.

Abstract: A medical device, such as an infusion pump, obtains a contextual awareness of its operation by communicating with centralized patient records and or other medical equipment communicating with a common patient, and/or provides real time advisory information, at care point or remotely. A protocol obtained by the medical device from a protocol server provides context-aware protocols and necessary predicate information for those protocols. This predicate information may be discovered by the medical device communicating with electronic medical records and the associated medical equipment.