Abstract: Some embodiments of this application disclose a battery cell, a battery, and an electrical device. The battery cell includes: a shell; an electrode assembly, where the electrode assembly is disposed in the shell; an electrolyte solution, where the electrolyte solution fills the shell; and a cushion, where the cushion is accommodated in the shell and attached to the electrode assembly. The cushion includes a sealed bag and a cushion pad. The sealed bag covers a surface of the cushion pad.

Abstract: This application provides a positive electrode plate, a secondary battery, and an electrical device. The positive electrode plate may be a positive electrode plate applicable to a jelly-roll cell, and includes a waist region close to a waist and an end region far away from the waist. The waist region includes a first positive electrode film, and the end region includes a second positive electrode film. The positive electrode plate may be a positive electrode plate applicable to a stacked type cell, and includes a center region close to a center and an edge region far away from the center. The center region includes a first positive electrode film, and the edge region includes a second positive electrode film.

Abstract: A battery cell, a battery, and an electrical device are disclosed. The battery cell includes a housing and at least 3 electrode assemblies. A cavity is defined in the housing. The cavity includes a first region and a second region. The first region is closer to the housing than the second region. The at least 3 electrode assemblies are disposed in the cavity. A capacity of a single electrode assembly located in the first region is Cap1, a capacity of a single electrode assembly located in the second region is Cap2, and Cap2 is greater than Cap1. By controlling Cap2 to be greater than Cap1, the electrode assembly in the second region contains more active lithium than the electrode assembly in the first region.

Abstract: A secondary battery includes a positive electrode plate. that includes a positive current collector, a first positive active material layer distributed on one side of the positive current collector, and a second positive active material layer distributed on an other side of the positive current collector and a negative electrode plate that includes a negative current collector, a first negative active material layer distributed on one side of the negative current collector and opposite to the second positive active material layer, and a second negative active material layer distributed on an other side of the negative current collector. A resistance of the first positive active material layer is R1, a resistance of the second positive active material layer is R2, a resistance of the first negative active material layer is R3, a resistance of the second negative active material layer is R4.

Abstract: The present invention relates to an electronic cigarette set, in particular to an ultrasonic atomizer, comprising an e-liquid guide assembly. In an embodiment, the e-liquid guide assembly comprises an e-liquid guide ceramic, e-liquid guide cotton, and springs located between the e-liquid guide ceramic and the e-liquid guide cotton and abut the e-liquid guide cotton against an atomization piece. Embodiments of the present invention use a combination of an e-liquid guide ceramic and e-liquid guide cotton to guide an e-liquid. Further details are disclosed herein.

Abstract: An electronic cigarette, comprising a shell and a power supply installed in the shell, and the electronic cigarette further comprises a tobacco bin which is provided in the shell and communicates with the outside air, and a suction nozzle which communicates with the tobacco bin; and a piezoelectric ceramic piece which clings to the tobacco bin is provided in the shell, the piezoelectric ceramic piece is a bearing surface of the tobacco bin on which a tobacco material is loaded as well as a heating surface of the tobacco bin, and the piezoelectric ceramic piece is electrically connected with the power supply. The electronic cigarette has a simple atomization mode and directly atomizes the tobacco material by means of the high frequency vibration and heat of the piezoelectric ceramic.

Abstract: The application discloses a battery cell, a battery, and an electrical device. The battery cell includes a shell, an electrode assembly and a buffering member. The shell includes two first side walls opposite to each other in a first direction, with a spacing of D1 between the two first side walls in the first direction. M electrode assemblies and N buffering members are accommodated inside the shell, where M and N are a positive integer greater than 0. In the fully charged state, the sum of the dimensions of M electrode assemblies along the first direction is D2. N buffering members and M electrode assemblies are stacked in the first direction. The buffering member is configured to be compressible, and the sum of the dimensions of N buffering members along the first direction in an uncompressed state is D3. D1, D2, and D3 meet: 0.9?(D2+D3)/D1?1.5.

Abstract: An atomizer for an electronic cigarette is provided. The atomizer comprises a liquid cartridge device with a liquid outlet, atomization cotton, and an ultrasonic atomization piece. The middle of the atomization cotton abuts against a central area of the ultrasonic atomization piece by means of a spring to form an atomization zone. An end portion of the atomization cotton is pressed against the bottom of the liquid cartridge device and covers the liquid outlet. An atomization cavity is provided between the ultrasonic atomization piece and the bottom of the liquid cartridge device. An atomization cavity gas inlet and an atomization cavity gas outlet are provided at the top of the atomization cavity. The atomization cavity gas inlet (501) and the liquid outlet (321) are staggered.

Abstract: Disclosed is an electronic cigarette atomizer including a liquid cartridge (6) and an ultrasonic atomization piece (42) mounted vertically. The liquid cartridge (6) is located above the ultrasonic atomization piece (42), a liquid guide channel (311) communicated with the liquid cartridge (6) is disposed below the liquid cartridge (6), a liquid outlet (331) is horizontally disposed in the liquid guide channel (311), and the caliber of the liquid outlet (331) is smaller than that of the liquid guide channel (311); and liquid guide cotton (43) is horizontally mounted across the ultrasonic atomization piece (42). The liquid guide cotton (43) is in contact with or attached to an atomization surface of the ultrasonic atomization piece (42), and the liquid outlet (331) abuts against the liquid guide cotton (43). With the electronic cigarette atomizer, when smoking, e-liquid is supplied in time, and e-liquid supply and ultrasonic atomization are balanced, such that the burning phenomenon can be prevented.

Abstract: A cooling cigarette filter and a smoking product are provided. The cooling cigarette filter comprises a cooling section. The cooling section is provided with one or more channels connecting two ends of the cooling section, and an inner surface of each channel is coated with a cooling material. The cooling material comprises an inorganic phase change material and PEG, and the inorganic phase change material comprises at least one of Na2CO3·10H2O, CH3COONa·3H2O, CaCl2·4H2O, and Na2SO4·10H2O. The cooling cigarette filter has the advantages of ensuring the amount of smoke and lowering the temperature of the smoke entering the mouth, especially in the cooling section. Through the combination design of the structure of the cooling stick and the type and amount of the cooling material, the smoke can flow out of a smoke generation section rapidly and smoothly.

Abstract: An electronic cigarette atomizing core and an atomizer are disclosed. The electronic cigarette atomizing core includes an outer sleeve and an inner sleeve, wherein the outer sleeve is provided with a liquid passing port. An atomization cavity is provided between the bottom of the inner sleeve and the ultrasonic atomization piece. A liquid guide cotton in communication with the liquid passing port is sandwiched between the outer sleeve and the inner sleeve. The inner sleeve is longitudinally provided with a main air groove and an auxiliary air groove at intervals. The cross sectional area of the auxiliary air groove is ¼ to ? the size of the cross sectional area of the main air groove. The main air groove is in communication with the atomization cavity. An auxiliary air inlet, an auxiliary air channel, the auxiliary air groove, and the atomization cavity are in communication with each other.

Abstract: An electronic cigarette atomizer and an electronic cigarette are disclosed. The electronic cigarette atomizer comprises an air inlet (1), an air inlet passage (2), an atomization cavity (3), an air outlet passage (4), an air outlet (5), and a suction nozzle (6) communicated sequentially, and further comprises an adjustment mechanism (7) for adjusting the air output of the air outlet. The adjustment mechanism (7) simultaneously adjusts the air input of the air inlet (1) and the air output of the air outlet (5). The electronic cigarette atomizer can adjust the air output of the air outlet (5) of the atomizer and can meet the needs of users with different lung capacities for different smoke concentration adjustment modes. The electronic cigarette atomizer can simultaneously adjust the air flow at the air inlet (1) and the air outlet (5) of the atomizer.

Abstract: An atomizing sheet assembly, an atomizer, and an electronic cigarette are disclosed. The atomizing sheet assembly comprises an e-liquid guide member, an atomizing sheet, and an atomizing seat. The atomizing sheet is fixed on the atomizing seat. The e-liquid guide member is in contact with an atomizing surface of the atomizing sheet. The atomizing seat is made of an elastic material. The e-liquid guide member is flaky. The atomizing seat is provided with a through hole. The flaky e-liquid guide member passes through the through hole and is in contact with the atomizing sheet. The atomizing sheet assembly can effectively adjust the e-liquid guide rate.

Abstract: Disclosed are an electronic cigarette atomization core (4) and atomizer. The electronic cigarette atomization core (4) includes an ultrasonic atomization piece (46) disposed horizontally, a liquid guide cotton (45) disposed above the ultrasonic atomization piece (46), and an electrode plate (47) placed on the liquid guide cotton (45). Each end of the electrode plate (47) is provided with a curved segment (472). The curved segment (472) includes a first contact (4721) located above a second contact (4722), wherein the first contact (4721) and the second contact (4722) are electrically connected but are distant horizontally, and the second contact (4722) abuts against an atomization surface electrode of the ultrasonic atomization piece (46) to form an electrical connection.

Abstract: An ultrasonic atomization core (17), an ultrasonic atomizer, and an ultrasonic electronic cigarette are disclosed. The ultrasonic atomization core (17) comprises an atomization sleeve (1). The atomization sleeve is provided with an ultrasonic atomization sheet (2) and e-liquid guide cotton (3) that communicates the outside with an atomization surface of the ultrasonic atomization sheet (2). The atomization surface of the ultrasonic atomization sheet (2) is a concave surface. The e-liquid guide cotton (3) has a convex surface corresponding to the atomization surface. The curvature of the convex surface of the e-liquid guide cotton (3) is greater than or equal to the curvature of the atomization surface of the ultrasonic atomization sheet (2). The convex surface of the e-liquid guide cotton (3) is in contact with the atomization surface of the ultrasonic atomization sheet (2).

Abstract: An ultrasonic electronic cigarette atomizer and an electronic cigarette, wherein the ultrasonic electronic cigarette atomizer comprises a shell, a tobacco tar storage bottle, an ultrasonic atomization piece and a flaky tobacco tar storage body fit to one side face of the ultrasonic atomization piece are provided in the shell, and a tobacco tar guide body is fixed to an outer wall of at least one side of the tobacco tar storage bottle; one side face of the tobacco tar guide body is communicated with the inner cavity of the tobacco tar storage bottle, and the other side face of the tobacco tar guide body is contacted with the side face of the tobacco tar storage body which is away from the ultrasonic atomization piece; and the ultrasonic atomization piece and the tobacco tar storage body are provided to be parallel to the length direction of an electronic cigarette.

Abstract: A working control circuit for an ultrasonic atomizer and an ultrasonic electronic cigarette are disclosed. The working control circuit comprises a power module, a booster circuit, a smoking switch, a controller, a drive circuit, and an LC oscillation circuit. An output end of the booster circuit is also connected to the drive circuit through a voltage regulator circuit. The voltage regulator circuit comprises a first MOS transistor, a first resistor, and a second resistor. A reference level feedback end of the booster circuit is grounded through a third resistor. The voltage output end of the booster circuit is electrically connected to the reference level feedback end of the booster circuit through a fourth resistor.

Abstract: An ultrasonic atomization sheet (1) and atomizer and an ultrasonic electronic cigarette are disclosed. The ultrasonic atomization sheet (1) comprises a flaky piezoelectric substrate (101), a surface electrode (102) attached to one surface of the piezoelectric substrate (101), and a drive electrode (103) attached to the other surface of the piezoelectric substrate (101). The piezoelectric substrate (101) is elongated. The piezoelectric substrate (101) is composed of an oscillating section (106) and a fixed section (107) connected to each other. The surface electrode (102) is fixed on one surface of the oscillating section (106), and the drive electrode (103) is fixed on the other surface of the oscillating section (106). The surface electrode (102) and the drive electrode (103) are both rectangular or circular.

Abstract: An electronic cigarette atomizer and an electronic cigarette are disclosed. The electronic cigarette atomizer comprises an air inlet (1), an air inlet passage (2), an atomization cavity (3), an air outlet passage (4), an air outlet (5), and a suction nozzle (6) that are communicated in sequence. The electronic cigarette atomizer further comprises a housing (8) and an adjustment mechanism (7) for adjusting the air input of the air inlet (1). The air inlet passage (2), the atomization cavity (3), and the air outlet passage (4) are all arranged in the housing (8), and a top of the housing (8) is provided with a top cover (9). The adjustment mechanism (7) comprises a movable member (10) located in the top cover (9) and movable axially along the top cover (9).

Abstract: An electronic cigarette atomization core and atomizer is disclosed. The electronic cigarette atomization core includes an atomization member (3), an outer sleeve (24), a connection sleeve (22), and atomization cotton (14). A lower segment of the connection sleeve (22) is sleeved outside an upper segment of the outer sleeve (24). The outer sleeve (24) is sleeved outside the atomization cotton (14). The outer sleeve (24) is provided with a first e-liquid passage hole (2401) capable of communicating an inner cavity of an electronic cigarette e-liquid bin (12) with the atomization cotton (14). The connection sleeve (22) is axially movable or circumferentially rotatable relative to the outer sleeve (24) to close or open the first e-liquid passage hole (2401). A buffer sealing structure is arranged between the connection sleeve (22) and the outer sleeve (24).