Abstract: A nonaqueous electrolyte secondary battery is provided with: an electrode body which is obtained by winding a positive electrode and a negative electrode, with a separator being interposed therebetween. This nonaqueous electrolyte secondary battery is characterized in that: the negative electrode comprises a negative electrode collector and a negative electrode mixture layer that is arranged on the negative electrode collector, while containing an Si-based material; the negative electrode mixture layer comprises a pair of end-part mixture layers which are arranged on both ends in the width direction D2 that is perpendicular to the winding direction D1 and a center-part mixture layer which is sandwiched between the pair of end-part mixture layers; and the average particle diameter of the Si-based material in the pair of end-part mixture layers is larger than the average particle diameter of the Si-based material in the center-part mixture layer.

Abstract: Provided is a wiring device for a high-voltage connector for energy storage. The high-voltage connector for energy storage includes a socket and a plug. The socket comprises a socket body, a mounting flange, an electrical isolation groove, a fastening ring, a pin and an anti-electric shock cap. The plug comprises a plug main body, a pressing buckle, hand-held pluggable portions, a hammering boss, a jack, a crown spring, a wiring cup opening, and a locking slider, waterproof lock washer and protective back cover.

Abstract: A nonaqueous electrolyte secondary battery including an electrode body which comprises a positive electrode, a negative electrode and a separator that is arranged between the positive electrode and the negative electrode, while comprising a heat-resistant layer and a base material layer; and a nonaqueous electrolyte. The positive electrode having a positive electrode mixture layer containing a positive electrode active material and resin-coated particles obtained by coating metal-based particles with a resin that melts at a temperature from 100° C. to 150° C.; the metal-based particles contain at least either metal or metal compound particles, which are dissolved in the nonaqueous electrolyte at 4.3 V (vs. Li/Li+) or less; the metal-based particles have an average particle diameter of more than 1 ?m; the content of the resin-coated particles is 0.5%-10% by mass relative to the total amount of the positive electrode mixture layer; and the heat-resistant layer contains a filler and a binder.

Abstract: A composite thermal barrier material (100) has a sandwich structure, and comprises an inner layer (110) consisting of an aerogel material which has ultra-low thermal conductivity; and two flame retardant layers (120) which comprising a flame retardant resin matrix (130), wherein the inner layer (110) is sandwiched by the two flame retardant layers (120), and the flame retardant layer (120) also contains an expandable graphite (140), a high temperature decomposable material (150) and a phase change material (160) as functional fillers dispersed in the flame retardant resin matrix (130). The composite thermal barrier material (100) has excellent thermal insulation property, and may stop the thermal propagation when one cell has thermal runaway.

Abstract: This cylindrical battery comprises: an electrode body in which a long positive electrode and a long negative electrode are wound with a separator therebetween; and a bottomed cylindrical exterior can which accommodates the electrode body. The exterior can includes a cylindrical porous metal section composed of a porous metal. The exterior can may comprise a dense metal section which is disposed inside the porous metal section and is composed of a dense metal.

Abstract: A method for simulating and predicting deep reservoir structural fractures in consideration of thickness change is disclosed. The method firstly calculates a structural fracture apparent density by using a stress-based reservoir structural fracture prediction formula group, secondly obtains structural fracture linear density based on simulation experiment, thickness unit division and reservoir structural fracture prediction optimization formula, finally carries out a reliability judgment based on the structural fracture linear density, the apparent density and the measured inspection values by using parameter inspection and error analysis. The above method can effectively reduce the difficulty and cost of energy development.

Abstract: In the present invention, an insulative tape is disposed so as to cover a positive electrode lead and a positive electrode mix layer. The thickness of a first opposing section, of the insulative tape, which faces the positive electrode lead is configured to be thinner than the thickness of a second opposing section, of the insulative tape, which faces the positive electrode mix layer. The second opposing section includes a substrate layer and an adhesive layer. The first opposing section may be configured so as not to have the adhesive layer.

Abstract: The present disclosure is applicable to the technical field of vehicles, and provides a jumper cable for emergency start of vehicles, an integrated starting power supply device, and a vehicle starting method. The jumper cable includes input terminals, clamping ends, and a charging portion. The charging portion includes a main charging circuit, a bypass charging circuit, and a microcontroller. The microcontroller is configured to control the bypass charging circuit to be switched on to pre-charge a vehicle battery and control the main charging circuit to be switched on to charge the vehicle battery when a relative relationship between an output voltage and an input voltage of the bypass charging circuit meets a preset loading condition so as to enable a vehicle to be started and ignited.

Abstract: A blockchain-based new energy power data transmission method for a photovoltaic module, comprising the following steps: S1, acquiring photovoltaic new energy power data; S2, converting the photovoltaic new energy power data acquired in S1 into photovoltaic new energy power image data; S3, processing the photovoltaic new energy power image data to obtain processed photovoltaic new energy power image data; and S4, transmitting the processed photovoltaic new energy power image data to a photovoltaic new energy power management platform. The invention can guarantee the security of acquired photovoltaic new energy power data and prevent the data from being tampered.

Abstract: In a battery pack, a heat-resistant cap is coupled to an end of a battery block including battery cells each having a discharge valve on an end surface thereof and arranged in plural rows. A valve-side end surface of battery cell is arranged at a first end of the battery block to which heat-resistant cap is coupled. Heat-resistant cap includes closing plate providing a first discharge gap between the closing plate and end surface of the battery block, a peripheral wall coupled to a periphery of closing plate and providing a second discharge gap between the peripheral wall and an outer circumference of the battery block, a partition wall disposed between end surfaces of adjacent battery cells and partitioning the first discharge gap into portions at end surfaces of battery cells.

Abstract: A button-type battery including a package assembly and a cell assembly is provided. In actual application, as part of a sealing wall is recessed inwards in a direction to a battery reservoir so as to form a locking boss, as such, when a battery cover is being assembled, the locking boss is pressed against part of a sealing plastic ring so that the part of the sealing plastic ring is in tight contact with a sealing edge, and a battery cup can be locked to the battery cover by means of the locking boss, thereby preventing easy detachment of the battery cover from the battery cup to cause exposure of a rolled cell. The battery cover is applied with a strong locking force from the battery cup, greatly improving the safety of the button-type battery.

Abstract: A gasket of a cylindrical battery according to an embodiment of the present disclosure comprises a cylindrical part, and a ring part which extends from one end part of the cylindrical part in the axial direction toward an inner side thereof in the radial direction. A surface of the ring part which is opposite the cylindrical part side in the axial direction has, an approximately flat surface, A protrusion is provided on the side of the ring part which is toward the cylindrical part in the axial direction. Said protrusion: is positioned with gaps in the radial direction in relation to both the cylindrical part and an inner end of the ring part in the radial direction; and protrudes in the axial direction.

Abstract: A battery shell and a battery are provided. The battery shell includes a body and two cover plates, wherein the body is a cylinder structure with two openings respectively at two ends thereof, the body is formed by bending a strip-shaped plate at least once, two ends of the plate are connected to each other, a width of the plate is B1, a width of the cover plate is B2, B1 is less than B2, the two cover plates respectively block the two openings of the body, the body is provided with a mounting side surface, and a pole assembly is arranged on the mounting side surface.

Abstract: An object of the present invention is to provide a horizontal shaft rotor suitable for a wind turbine or a water turbine, which has blades with high wind receiving efficiency, resistance to breakage, and high rotation efficiency. A horizontal shaft rotor 1, wherein the horizontal shaft rotor 1 has a plurality of blades 3 facing a radial direction fixed to the peripheral surface of the hub 2, and each blade 3 is a lift type in which a string length is gradually increased from a base end part 4A to a blade end 3G in a front view, and a distal part from a radial direction middle part 3A of the blade 3 is a forward curved part 5, and a front end surface 5A of a forward tip of the forward curved part is a lift type that a leading edge 5F is thicker in a front view.

Abstract: The present disclosure provides a preparation method of a composite current collector for a zinc secondary battery, a negative electrode plate, and a zinc secondary battery. The preparation method of the composite current collector for the zinc secondary battery comprises: 1) disposing a layer of carbon cloth between two layers of zinc mesh, thermally pressing the two layers of zinc mesh with the carbon cloth, and rolling the two layers of zinc mesh with the carbon cloth to obtain a pressed zinc mesh; 2) soaking the pressed zinc mesh in a graphene dispersion, then taking out and drying the pressed zinc mesh after soaking; and 3) coating two surfaces of the dried pressed zinc mesh with a conductive paste and drying to obtain the composite current collector for the zinc secondary battery.

Abstract: A lithium-ion rechargeable battery includes an electrode body including a stack of a cathode plate having a cathode mixture layer, an anode plate having an anode mixture layer, and a separator arranged between the anode plate and the cathode plate. A porosity PP of the cathode mixture layer and a porosity NP of the anode mixture layer are set to be greater than a porosity SP of the separator.

Abstract: A battery pack includes: a case body including an accommodation trough and a pressure relief member; battery modules; and trays each corresponding to corresponding one of the battery modules and including a tray body and supports; where each of the battery modules is bonded to an upper side of the tray body by an adhesive, a first end of each of the supports is connected to the tray body, a second end of the support is in contact with a bottom portion of the accommodation trough, the tray body and the bottom portion of the accommodation trough are spaced apart to form a pressure relief cavity communicating with the pressure relief member, each of the supports is provided with a first through hole, and the adhesive is bonded to the bottom portion of the accommodation trough through the first through hole from the upper side.