Abstract: A cell control board includes a switch device, a detection device, a communication device, and a control device connected with each of the switch device, the detection device and the communication device. The switch device has a first terminal and a second terminal respectively as a first connection terminal and a second connection terminal of the cell control board. Each of the switch device and the detection device can be connected with a cell of a battery pack, and the detection device can detect cell information of the cell. The control device is configured to: transmit the cell information to a battery pack controller through the communication device; receive control instructions therefrom; and control the switch device to adjust, based on the control instructions, connection of the cell with the remaining cells of the battery pack through the first connection terminal and the second connection terminal.

Abstract: The present disclosure provides a cells contact system (CCS), a battery, and an electric vehicle. The CCS includes: a support; one or more busbars arranged on the support, where the busbars are configured to be connected to cells; and an acquisition line arranged on the support and electrically connected to the busbars. The acquisition line has a bent portion, and the support is provided with an opening corresponding to the bent portion.

Abstract: A cleaning system and method can include a cleaning device including a soaking tank configured to accommodate cleaner; and a filtering device configured to filter a first substance being a mixture of the cleaner and mask residue in the soaking tank. The filtering device includes a sucking apparatus including an sucking port for sucking the first substance; a spraying apparatus, including a spraying port oriented a region that the sucking port is capable of sucking in a bottom of the soaking tank, the spraying port being configured to spray liquid or gas to flush the bottom of the soaking tank; and a filtering apparatus connected to the sucking apparatus to receive and filter the first substance sucked by the sucking port.

Abstract: A layered electrode body manufacturing device comprising: a negative electrode cut drum cuts a negative electrode single plate at a first width, generates a negative electrode plate, and conveys same; a negative electrode heat drum heats the negative electrode plate; a positive electrode cut drum cuts a positive electrode single plate at a second width, generates a positive electrode plate, and conveys same; a positive electrode heat drum heats the positive electrode plate; and a bonding drum which positions the negative electrode plate on a first separator single plate, positions a second separator single plate thereon, and positions and bonds the positive electrode plate thereon. The pressing forces between the bonding drum, and the negative and positive electrode heat drums are adjusted. At least a portion of two sides from the outer edge part of the electrode plate is bonded to a separator, and the other two sides are not.

Abstract: The present disclosure relates to a drying apparatus for a powder raw material for manufacturing a secondary cell with an electric heater. In an embodiment of the present disclosure, a plurality of independently controlled heaters are mounted on a main body of an apparatus in which a plurality of heating regions are defined, and the temperature deviation of the internal chamber can reduce by providing the amount of heat supplied to each heating region through the control of the plurality of heaters. The main body of the apparatus includes a cylindrical portion in which the powder raw material is accommodated and sidewalls on both sides of the cylindrical portion, and by installing heaters on the cylindrical portion and the sidewalls, respectively, the entire region defining the main body of the apparatus can be evenly heated.

Abstract: Disclosed are a processing apparatus, a corrugated plate, and a storage container. The processing apparatus includes a pair of slide plates, a pair of press plates, a shaping block, and a driving mechanism. The driving mechanism includes a slide plate driving portion linked to a shaping block driving portion, allowing the slide plate driving portion drives the pair of slide plates to approach each other at a first predetermined speed, the shaping block driving portion moves the shaping block downward at a second predetermined speed, and the first and second predetermined speed are specifically correlated with respect to a predetermined forming profile of an intersection portion. The processing apparatus of the present disclosure causes running speeds of various portions that move in different directions to extrude a blank plate to be specifically associated, so that the formation process is particularly applicable to a corrugated plate having the predetermined corrugated shape.

Abstract: A battery pack includes a battery block including battery cells connected to one another and a case accommodating the battery block. Each battery cell includes a discharge valve on an end surface of the cell which is configured to open when an internal pressure exceeds a predetermined pressure. The battery cells are arranged on a straight line such that respective end surfaces of the calls face each other. The battery block has a discharge gap between the end surfaces of the cells facing each other which is configured to guide exhaust gas from the discharge valve The case includes lower case, an upper case, a heat dissipation plate arranged in lower case and between the lower case and battery block, and a bendable heat-resistant cover protruding from a side edge of the heat dissipation plate and arranged at a position covering an opening of discharge gap.

Abstract: Provided in the present application are a method for treating a semiconductor substrate layer and a method for preparing a solar cell. The method for treating a semiconductor substrate layer comprises a step of providing a monocrystalline silicon wafer, a step of spraying a diffusion liquid onto a surface of the monocrystalline silicon wafer, and a step of annealing the monocrystalline silicon wafer, and further comprises subjecting the monocrystalline silicon wafer to a surface oxidation treatment before spraying the diffusion liquid onto the surface of the monocrystalline silicon wafer, wherein the surface oxidation treatment is used for improving the lyophilicity of the surface of the monocrystalline silicon wafer to the diffusion liquid, so as to improve the uniformity of the annealing treatment of the monocrystalline silicon wafer.

Abstract: A sealed battery with a battery case that includes a bottomed cylindrical outer can and an opening-sealing body that closes an opening section of the outer can; and an electrode body that is accommodated inside the battery case. The opening-sealing body includes a metal plate, and the metal plate includes a protruding section that bulges toward the outside of the battery cast, and a flange section that is formed on the circumference of the protruding section. The protruding section includes an inclination section that inclines inward from the radial outside of the opening sealing body so as to be progressively separated from the electrode body, wherein a thin wall section, which has a thickness less than portions other than the inclination section and is preferably broken when the inner pressure of the battery case exceeds a predetermined threshold, is formed in at least a portion of the inclination section.

Abstract: The present invention relates to the field of lithium battery material preparation technologies, particularly to a method for preparing lithium iron phosphate using the by-product ferrous sulfate from titanium dioxide. The method comprises the following steps: dissolving by-product ferrous sulfate from titanium dioxide in acidic aqueous solution, stirring with iron powder for reaction; adding iron phosphate or lithium iron phosphate waste powder to the solution, heating and stirring the mixture, allowing the mixture to settle and cool, and filtering the cooled mixture to obtain a purified ferrous sulfate solution; and adding phosphoric acid and a lithium hydroxide solution in an autoclave, and finally adding the purified ferrous sulfate solution, heating the mixture under stirring, then filtering, washing, and drying the mixture to obtain lithium iron phosphate powder; Using it as an iron source to prepare positive electrode materials for lithium-ion batteries has excellent electrochemical performance.

Abstract: Disclosed herein are a bracket assembly, a wiring harness integration assembly, and a battery module. The bracket assembly includes a wiring harness bracket and a fixing bracket that are detachably connected to each other, the wiring harness bracket is configured to mount an acquisition wiring harness, a side of the wiring harness bracket is provided with a mounting portion for mounting a connector, a first connecting portion is protrudingly arranged on the mounting portion, the mounting bracket includes a fixing portion and a second connecting portion, the fixing portion is used for mounting the connector, and the second connecting portion is detachably connected to the first connecting portion.

Abstract: A bracket is applicable to a battery module including multiple cells. The bracket includes a base and multiple positioning devices. The base is provided with multiple placement grooves spaced apart from each other and arranged in an array, and has multiple arrangement areas spaced apart from each other. Each of the placement grooves has an outer periphery surrounded by ones of the arrangement areas, and the cells are capable of being inserted respectively into the plurality of placement grooves. The positioning devices are arranged respectively in the arrangement areas. Each of the positioning devices includes one or more elastic structures, and each of the elastic structures is configured to abut against an outer periphery of one of the cells.

Abstract: An electrolyte supply system for supplying an electrolyte to a use point, includes: a receiving storage tank configured to store the electrolyte that has been delivered; a supply storage tank to which the electrolyte is transferred from the receiving storage tank; a temperature control device configured to control temperatures of the electrolyte in the receiving storage tank and that in the supply storage tank; and a supply pipe that is laid from the supply storage tank to the use point. The electrolyte supply system is highly safe because the storage tanks are disposed in an outdoor location, and furthermore, performs a temperature control process for the receiving storage tank before the electrolyte is transferred to the supply storage tank. Thus, it can supply the electrolyte to the use point 24 hours a day even with little temperature control in the supply storage tank.

Abstract: A negative electrode for a nonaqueous electrolyte with a negative electrode mixture layer that includes a first layer and a second layer. The first layer is formed on the negative electrode current collector and includes a negative electrode active material and a first binding agent. The negative electrode active material in the first layer includes a carbon material A and a Si-containing compound. The first binding agent includes polyacrylic acid or a salt thereof. The second layer is formed on the first layer and includes a negative electrode active material and a second binding agent. The negative electrode active material in the second layer includes a carbon material B. The carbon material B has a tap density higher than a tap density of the carbon material A. A packing density of the second layer is lower than a packing density of the first layer.

Abstract: A method of manufacturing a positive electrode active material for a lithium-ion secondary battery includes a water-washing step of washing a lithium-nickel composite oxide containing Li, Ni, and an element M with water, and conducting a filtration to form a washed-cake, a mixing step of mixing, while heating, the washed-cake and a tungsten compound without lithium while heating to obtain a tungsten mixture, and a heat treatment step of heat-treating the tungsten mixture, wherein a water content of the washed-cake is 3.0% by mass or more and 10.0% by mass or less, a ratio of a number of tungsten atoms contained in the tungsten mixture to a total number of nickel and the element M atoms contained in the lithium-nickel composite oxide is 0.05 at. % or more and 3.00 at. % or less, and a temperature of the mixing step is 30° C. or higher and 70° C. or lower.

Abstract: A cell and a battery are disclosed. The cell includes: a barrel, a first end cover and a second end cover being arranged at two ends of the barrel respectively, the barrel, the first end cover and the second end cover defining an accommodating space in which a battery cell assembly is arranged; and a heat exchange pipe passing through the first end cover, the second end cover, and the accommodating space, and an outer wall of the heat exchange pipe being in contact with the battery cell assembly. The battery includes at least two cells, the heat exchange pipes of the adjacent cells communicate with each other, so that external fluid can enter the heat exchange pipe at one end of the battery pack and then exchange heat with all the cells.

Abstract: The present disclosure provides a battery pack and an electric equipment. The battery pack includes a battery module, a reinforcement module, and a liquid cooling module. The battery module includes a plurality of cell groups. The reinforcement module includes a plurality of reinforcement beams. The liquid cooling module includes a plurality of liquid cooling plates. The plurality of liquid cooling plates and the plurality of reinforcement beams are alternately arranged along a first direction. One cell group is provided between each of the liquid cooling plates and any adjacent one of the reinforcement beams.

Abstract: The power supply device includes: battery block in which a plurality of secondary battery cells is connected in series and/or in parallel to each other; circuit board on which a protection circuit that protects secondary battery cells constituting battery block is mounted; and exterior case that houses battery block and circuit board. Exterior case has facing part that directly faces circuit board thicker than at least a portion of a non-facing part that is another part. Accordingly, forming the part directly facing circuit board in exterior case so as to be relatively thick makes it possible to improve heat resistance and reduce influence on the outside when circuit board reaches a high temperature.

Abstract: Provided is a non-aqueous electrolyte secondary battery that has improved cycle characteristics and has high capacity. A non-aqueous electrolyte secondary battery according to an aspect of the present disclosure comprises: a positive electrode; a negative electrode; a separator that isolates the positive electrode and the negative electrode from each other; and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector, a first positive electrode mixture layer formed on the surface of the positive electrode current collector, and a second positive electrode mixture layer formed on the surface of the first positive electrode mixture layer. The second positive electrode mixture layer includes a second conductive agent having an average particle diameter of 0.5-15 ?m. The first positive electrode mixture layer includes a first conductive agent having an average particle diameter smaller than the average particle diameter of the second conductive agent.