Abstract: A coating device for applying a coating to a member to be coated includes: a roller assembly including a first spool and second spool that are spaced apart, wherein the first spool is configured to release the member to be coated that is to be coated, and the second spool is configured to roll up the member to be coated after being coated with a coating; a coating assembly including an electrostatic roller set and an electrostatic rod, wherein the electrostatic roller set is at least partially rotatable and is configured to electrostatically adsorb the powder, the electrostatic rod is configured to provide electrostatic adsorption force to the powder on the electrostatic roller set; a composite assembly provided at downstream position of the coating assembly, and configured to connect the powder laid on the member to be coated with the member to be coated.

Abstract: This application relates to a protective apparatus. The protective apparatus is configured to protect a to-be-welded part, the to-be-welded part includes a welding region, and the protective apparatus includes a base and a protective mechanism. The base is configured for embedding the to-be-welded part. The protective mechanism is connected to the base. The protective mechanism includes a welding hole, where the welding hole is provided corresponding to the welding region; and a surface of the protective mechanism facing the welding hole is provided with a thermally conductive coating, where the thermally conductive coating is configured to guide substances formed in welding the to-be-welded part to slide down along the surface of the thermally conductive coating. The protective apparatus in this application can improve welding quality of the welding region, thereby enhancing performance of the to-be-welded part.

Abstract: An electrode plate conveying mechanism includes: a first conveying roller used for conveying an electrode plate; and a negative pressure supply unit arranged on at least one end of the first conveying roller, spaced apart from the first conveying roller in an axial direction of the first conveying roller, and used for forming a negative pressure around a tab of the electrode plate so as to prevent the tab from being folded.

Abstract: Disclosed are a dedusting apparatus, a battery manufacturing device, and a dedusting method. The dedusting apparatus is used for removing dust on the surface of a material belt, and includes a dust suction mechanism and a magnetic mechanism, wherein the magnetic mechanism is arranged opposite to the dust suction mechanism at an interval to form a gap for the material belt to pass through, and the magnetic mechanism is used for generating an alternating magnetic field. By arranging the magnetic mechanism and the dust suction mechanism opposite to each other on both sides of the material belt in the thickness direction, when the material belt passes through the gap between the magnetic mechanism and the dust suction mechanism, metal dust passing through the gap along with the material belt is affected by the alternating magnetic field and induced to form an eddy current.

Abstract: Provided are a roller assembly, a battery cell manufacturing device, and an adjustment method of a roller, which relates to the field of battery manufacturing technology. The roller assembly includes a holder, a roller, and a first adjusting member. The roller is rotatably mounted on the holder. The first adjusting member is rotatably mounted on the holder, and one end of the roller is rotatably connected to the first adjusting member. A rotation axis of the roller does not coincide with a rotation axis of the first adjusting member. One end of the roller is rotatably mounted on the holder through the first adjusting member. The rotation axis of the first adjusting member does not coincide with the rotation axis of the roller, and therefore, rotation of the first adjusting member is capable of driving a corresponding end of the roller to rotate, thereby adjusting an extension direction of the roller.

Abstract: An electrode assembly manufacturing device includes a winding mechanism, a heating mechanism, a conveyor belt arranged between the heating mechanism and the winding mechanism, and a forming mechanism. The winding mechanism is configured to wind a positive electrode sheet, a separator, and a negative electrode sheet into an electrode assembly. The conveyor belt is configured to transfer the electrode assembly from the winding mechanism to the heating mechanism. The heating mechanism is configured to heat the electrode assembly. The forming mechanism is configured to press and form the electrode assembly.

Abstract: The invention discloses a node multi-electrode resistivity measurement system provided with a transmitter, a PC terminal, acquisition nodes, transmitting electrodes and receiving electrodes. The transmitter, acquisition nodes and PC terminal are connected by Wifi, and the transmitter and acquisition nodes are connected in series by a five-core cable. So the weight of the cable is greatly reduced, and each core can be wrapped by shielding layer, reducing the influence of electromagnetic coupling and ensuring the quality of collected data. The weight of the system is very light so that work efficiency has been improved. Synchronization between transmitter and acquisition nodes is carried out by GPS.

Abstract: Provided are a roller assembly, a battery cell manufacturing device, and an adjustment method of a roller, which relates to the field of battery manufacturing technology. The roller assembly includes a holder, a roller, and a first adjusting member. The roller is rotatably mounted on the holder. The first adjusting member is rotatably mounted on the holder, and one end of the roller is rotatably connected to the first adjusting member. A rotation axis of the roller does not coincide with a rotation axis of the first adjusting member. One end of the roller is rotatably mounted on the holder through the first adjusting member. The rotation axis of the first adjusting member does not coincide with the rotation axis of the roller, and therefore, rotation of the first adjusting member is capable of driving a corresponding end of the roller to rotate, thereby adjusting an extension direction of the roller.

Abstract: An electrode assembly manufacturing device includes a winding mechanism, a heating mechanism, a conveyor belt arranged between the heating mechanism and the winding mechanism, and a forming mechanism. The winding mechanism is configured to wind a positive electrode sheet, a separator, and a negative electrode sheet into an electrode assembly. The conveyor belt is configured to transfer the electrode assembly from the winding mechanism to the heating mechanism. The heating mechanism is configured to heat the electrode assembly. The forming mechanism is configured to press and form the electrode assembly.

Abstract: A welding device may include a frame, a welding assembly, a fastening bracket, a protective pressure plate, a first drive mechanism, and a second drive mechanism; the welding assembly may include a first welding head and a second welding head that are arranged opposite each other, and the first welding head may be fastened on the frame; the fastening bracket may be movably provided on the frame, and the second welding head may be fastened on the fastening bracket; the protective pressure plate may be fastened on the fastening bracket or the second welding head; and the first drive mechanism may be drivingly connected to the fastening bracket and configured to drive the fastening bracket so that the second welding head may reach a position of a welding point and the protective pressure plate may press against a to-be-welded member.

Abstract: This application relates to a protective apparatus. The protective apparatus is configured to protect a to-be-welded part, the to-be-welded part includes a welding region, and the protective apparatus includes a base and a protective mechanism. The base is configured for embedding the to-be-welded part. The protective mechanism is connected to the base. The protective mechanism includes a welding hole, where the welding hole is provided corresponding to the welding region; and a surface of the protective mechanism facing the welding hole is provided with a thermally conductive coating, where the thermally conductive coating is configured to guide substances formed in welding the to-be-welded part to slide down along the surface of the thermally conductive coating. The protective apparatus in this application can improve welding quality of the welding region, thereby enhancing performance of the to-be-welded part.

Abstract: A cutter driving apparatus configured to drive a cutter of a cutting device includes a following drive assembly, a cutting drive assembly, a cutter drive rod connected to the following drive assembly, and a connecting rod assembly having a first connecting end connected to the cutting drive assembly and a second connecting end connected to the cutter drive rod.

Abstract: The invention discloses a construction method of genetic engineering fungi of filamentous fungi. Through the genetic engineering method, the filamentous fungi overexpress the positive regulation genes of ethanol synthesis, and/or down regulate the negative regulation genes of endogenous ethanol synthesis to obtain genetic engineering strains. Or overexpression of acetaldehyde dehydrogenase and ethanol dehydrogenase containing mitochondrial localization signal sequence, or overexpression of pyruvate decarboxylase and ethanol dehydrogenase containing mitochondrial localization signal sequence, or overexpression of acetaldehyde dehydrogenase, ethanol dehydrogenase and pyruvate decarboxylase containing mitochondrial localization signal sequence in filamentous fungal cells. Compared with the original strain, the ethanol synthesis ability of the obtained genetically engineered strains are improved.

Abstract: The present application relates to the field of communications, and in particular to a hybrid beam forming architecture-based calibration compensation method and apparatus for improving the accuracy and effectiveness of calibration compensation. The method comprises: a base station determining a preset calibration weight vector matrix W and a preset first calibration signal matrix S, then transmitting N times consecutively calibration signals through analog transmission channels, calculating, according to the calibration weight vector matrix W, the first calibration signal matrix S and a first received data vector matrix YTX, a transmission channel error matrix ETX, and then performing error compensation on the analog transmission channels based on ETX.

Abstract: The present application relates to the field of communications, and in particular to a hybrid beam forming architecture-based calibration compensation method and apparatus for improving the accuracy and effectiveness of calibration compensation. The method comprises: a base station determining a preset calibration weight vector matrix W and a preset first calibration signal matrix S, then transmitting N times consecutively calibration signals through analog transmission channels, calculating, according to the calibration weight vector matrix W, the first calibration signal matrix S and a first received data vector matrix YTX, a transmission channel error matrix ETX, and then performing error compensation on the analog transmission channels based on ETX.

Abstract: The embodiments of the present invention disclose a method for synthesizing ceramic composite powder and ceramic composite powder, pertaining to the technical field of inorganic non-metallic materials. Among them, the method includes preparing an aqueous slurry of ceramic raw materials, the aqueous slurry including ceramic raw material, water and low polymerization degree organometallic copolymer, the ceramic raw material including at least two components; adding a crosslinking coagulant into the aqueous slurry to obtain a gel; dehydrating and drying the gel to obtain the dried gel; heating the dried gel to the synthesizing temperature of the ceramic composite powder and conducting the heat preservation to obtain ceramic composite powder or ceramic composite base powder; conducting secondary doping on ceramic composite base powder to obtain the ceramic composite powder.

Abstract: The embodiments of the present invention disclose a method for synthesizing ceramic composite powder and ceramic composite powder, pertaining to the technical field of inorganic non-metallic materials. Among them, the method includes preparing an aqueous slurry of ceramic raw materials, the aqueous slurry including ceramic raw material, water and low polymerization degree organometallic copolymer, the ceramic raw material including at least two components; adding a crosslinking coagulant into the aqueous slurry to obtain a gel; dehydrating and drying the gel to obtain the dried gel; heating the dried gel to the synthesizing temperature of the ceramic composite powder and conducting the heat preservation to obtain ceramic composite powder or ceramic composite base powder; conducting secondary doping on ceramic composite base powder to obtain the ceramic composite powder.

Abstract: A digital predistortion processing method and system comprises extracting from a predistortion coefficient parameter table a predistortion parameter corresponding to an input signal, so as to predistort the input signal and obtain a forward transmission signal; amplifying the power of the forward transmission signal to obtain an output signal; acquiring the output signal to obtain a feedback signal; delaying a predetermined number of sampling points so as to acquire the forward transmission signal and obtain a reference signal; conducting synchronization-related calculation on the reference signal and the feedback signal, and calibrating the feedback signal; training a predistortion coefficient according to the reference signal and the calibrated feedback signal; and forming the predistortion coefficient parameter table according to the predistortion coefficient and the amplitude of the input signal.

Abstract: A digital predistortion processing method and system comprises extracting from a predistortion coefficient parameter table a predistortion parameter corresponding to an input signal, so as to predistort the input signal and obtain a forward transmission signal; amplifying the power of the forward transmission signal to obtain an output signal; acquiring the output signal to obtain a feedback signal; delaying a predetermined number of sampling points so as to acquire the forward transmission signal and obtain a reference signal; conducting synchronization-related calculation on the reference signal and the feedback signal, and calibrating the feedback signal; training a predistortion coefficient according to the reference signal and the calibrated feedback signal; and forming the predistortion coefficient parameter table according to the predistortion coefficient and the amplitude of the input signal.