Abstract: A battery current collector plate and a battery, the current collector plate comprising a current collector plate body and a weld zone, the current collector plate body having a first face for contacting a rolled core, and a second face opposite the first face; at least a portion of the second face is provided with the weld zone, and the weld zone has a lower laser reflectivity than the first face. In the present utility model, the weld zone of low laser reflectivity is provided on the current collector plate, such that a surface of the current collector plate absorbs laser energy more effectively, thereby increasing the efficiency and precision of welding. At the same time, the weld zone of low laser reflectivity can also reduce the temperature and the amount of heat generated during laser welding, thereby safeguarding the performance and stability of a rolled core assembly.

Abstract: A current collecting plate for a negative electrode of a battery unit. The current collecting plate comprises: a main body part that forms a main body of the current collecting plate; a welding region that is arranged at the approximate center of the main body part; and a connecting part that connects the welding region to the main body part, wherein in addition to being connected to the connecting part, the welding region is separated from the main body part by a through opening.

Abstract: A battery electrode sheet, a cylindrical battery, and a method for manufacturing same. The battery electrode sheet comprises a coated zone coated with an electrode material, and a bare foil zone, the bare foil zone being provided with multiple oblique slots and multiple oblique protrusions in an alternating manner. The cylindrical battery comprises a positive electrode sheet, a negative electrode sheet and a separator, the positive electrode sheet and/or the negative electrode sheet being the battery electrode sheet. The method for manufacturing a cylindrical battery comprises flattening positive/negative electrode end faces of a cell, wherein the direction of flattening is the same as the direction of inclination of oblique protrusions.

Abstract: A cylindrical battery cell. The cylindrical battery cell includes an anode, a cathode, one or more separator sheets that separates the anode from the cathode, an electrolyte and a cylindrical housing. The anode, the one or more separator sheets, and the cathode are rolled together to form a roll and the anode, the cathode and the one or more separators form concentric layers within the roll. The roll is seated in the cylindrical housing. At least one of the anode and the cathode includes a plurality of apertures formed from an inner radial surface of the roll to an outer radial surface of the roll. The plurality of apertures form passageways that are configured to facilitate a flow of the electrolyte within the roll such that the electrolyte flows into the roll.

Abstract: Embodiments of the present disclosure relate to an optical line terminal (OLT), an optical network unit (ONU), communication methods, communication apparatuses, and computer-readable media. In an exemplary method, the OLT determines an optical communication capability of the OLT which includes at least one of the following: at least two upstream wavelength options supported by the OLT, a passive optical network (PON) mode associated with the OLT, and an upstream modulation format used by the OLT. In the method, the OLT further transmits, to the ONU, at least one indicator indicating the optical communication capability. In this way, the OLT can negotiate the optical communication capability with the ONU, thus avoiding data transmission failures or performance degradation caused by device incompatibility.

Abstract: An electrode sheet for a lithium ion battery, comprising a coated part coated with an electrode material along a length direction of the sheet and an uncoated part uncoated with the electrode material, wherein the sheet comprises a sheet head and a sheet tail; the uncoated part of the sheet head is provided with a head notch; and the uncoated part of the sheet tail is provided with a tail notch. In the present invention, notches of specific shapes and sizes are provided in the uncoated parts of the head and tail ends of the electrode sheet, respectively, which can diminish the problem of a tab end face becoming larger in diameter, protruded outward or folded when flattened, and diminish the problem of a center hole being blocked.

Abstract: A method of controlling a pressure in a process chamber of a semiconductor heat treatment device includes: obtaining an actual pressure value in the process chamber; determining a first valve opening value for controlling opening an exhaust valve according to a difference between the actual pressure value and a preset target pressure value; determining a first valve opening change value according to the first valve opening value and a current valve opening value; determining whether the first valve opening change value is within a preset fluctuation range of a valve opening change value corresponding to a current process stage; and in response to the first valve opening change value being within the fluctuation range, adjusting opening of an exhaust valve according to the first valve opening value.

Abstract: In response to a first channel associated with a first OLT and a second channel associated with a second OLT being enabled for target traffic, a traffic scheduler for scheduling the target traffic is determined by the first OLT. The first channel and the second channel correspond to a first wavelength and a second wavelength, respectively. The first OLT transmits channel configurations and offset information to an ONU, based on scheduling of a first group of data units and a second group of data units of the target traffic by the traffic scheduler on the first channel and the second channel, respectively. The channel configurations indicate channel identifications associated with the first channel and the second channel, and the offset information indicates timing information of the first group of data units and the second group of data units corresponding to physical frames transmitted on the first and second channels.

Abstract: Provided are a data processing method and apparatus for a Passive Optical Network (PON) system and a PON system. The method includes: a first partial bandwidth is allocated to a first Optical Network Unit (ONU) within a first time window, the first ONU having completed registration and being in a working state; and a first data frame from the first ONU is received within a time corresponding to the first partial bandwidth, and a second data frame from a second ONU is detected within the first time window, the second ONU having not completed registration.

Abstract: In response to a first channel associated with a first OLT and a second channel associated with a second OLT being enabled for target traffic, a traffic scheduler for scheduling the target traffic is determined by the first OLT. The first channel and the second channel correspond to a first wavelength and a second wavelength, respectively. The first OLT transmits channel configurations and offset information to an ONU, based on scheduling of a first group of data units and a second group of data units of the target traffic by the traffic scheduler on the first channel and the second channel, respectively. The channel configurations indicate channel identifications associated with the first channel and the second channel, and the offset information indicates timing information of the first group of data units and the second group of data units corresponding to physical frames transmitted on the first and second channels.

Abstract: In an example, a battery includes a metal foil. A coating is disposed on a portion of the metal foil, and an uncoated portion of the metal foil corresponds to an electrode member of the battery. The battery further includes a ceramic barrier disposed on at least a portion of a boundary between the electrode member and the coating.

Abstract: Provided are a data processing method and apparatus for a Passive Optical Network (PON) system and a PON system. The method includes: a first partial bandwidth is allocated to a first Optical Network Unit (ONU) within a first time window, the first ONU having completed registration and being in a working state; and a first data frame from the first ONU is received within a time corresponding to the first partial bandwidth, and a second data frame from a second ONU is detected within the first time window, the second ONU having not completed registration.

Abstract: A battery includes an anode, a cathode, one or more separators, and an electrolyte. The anode, the cathode, the one or more separators, and the electrolyte are disposed in a roll configuration. At least one of the anode or the cathode includes a foil portion having a plurality of bent portions in different widths that are bent inwardly toward an axis of the roll configuration and that define an edge of the roll configuration.

Abstract: A method of communication includes notify, by an optical line terminal (OLT), an optical network unit (ONU) a first time period assigned to a first power saving operation and a second time period assigned to a second power saving operation, and perform, by the OLT, the second power saving operation for a receiver of the OLT during the second time period and the first power saving operation for a transmitter of the OLT during the first time period.

Abstract: A method of communication includes notify, by an optical line terminal (OLT), an optical network unit (ONU) a first time period assigned to a first power saving operation and a second time period assigned to a second power saving operation, and perform, by the OLT, the second power saving operation for a receiver of the OLT during the second time period and the first power saving operation for a transmitter of the OLT during the first time period.

Abstract: Disclosed is a relieved weld plate for affixing to a battery core to provide an electrical connection between the battery core and a terminal of a battery. The relieved weld plate includes a conductive face configured for affixing to an electrode of the battery core. The relieved weld plate further includes one or more pathways disposed in the conductive face. The one or more pathways are configured to facilitate at least one of an ingress of a first material into the battery core or an egress of a second material out of the battery core.

Abstract: Embodiments of the present disclosure relate to methods, optical line terminals (OLTs), optical network units (ONUs), apparatuses and computer storage media for transmitting a time synchronization message. In some example embodiments, the OLT is configured to: determine a threshold rate to be N messages per second for transmission of a time synchronization message to an ONU, wherein N being greater than or equal to 0.1; and transmit, to the ONU, a time synchronization message at the threshold rate or a rate above the threshold rate, to enable the ONU to perform time synchronization with the OLT. In some other example embodiments, the OLT is configured to: select a plurality of ONUs for transmitting time synchronization information; and transmit, to the ONUs, a broadcast or multicast message the time synchronization information, to enable the plurality of ONUs to perform time synchronization with the OLT.

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of ONU activation for OLT Equalizer training. The method includes determining, at OLT, configuration information indicating a bandwidth allocation dedicated for an ONU and a first target preamble sequence associated with the bandwidth allocation, the first target preamble sequence to be used by the ONU for a transmission from the ONU to the OLT on a first wavelength; transmitting the configuration information to the ONU; and receiving the transmission from the ONU from the ONU on the first wavelength, the transmission is performed by the ONU based on the first target preamble sequence.

Abstract: A method for channel management in an optical network unit includes receiving a disable channel action message sent by an optical line terminal, wherein the disable channel action message is used to instruct disabling a first channel of the optical network unit; transferring the state machine of the optical network unit on the first channel from the association substate of the operation state to the pending substate according to the disable channel action message; and turning off the transmitter and/or the receiver on the first channel after a specified time is reached, transferring the state machine from the pending substate of the operation state to the disabling channel status, and starting a timer.

Abstract: Provided are a data processing method and apparatus for a Passive Optical Network (PON) system and a PON system. The method includes: a first partial bandwidth is allocated to a first Optical Network Unit (ONU) within a first time window, the first ONU having completed registration and being in a working state; and a first data frame from the first ONU is received within a time corresponding to the first partial bandwidth, and a second data frame from a second ONU is detected within the first time window, the second ONU having not completed registration.