120results about How to "Reduce the chance of short circuits" patented technology

An end-effector assembly includes opposing first and second jaw assemblies pivotably mounted with respect to one another. The first jaw assembly includes a first jaw member including a first arm member defining one or more apertures at least partially therethrough and a first support base extending distally therefrom, wherein an engagement structure of the first arm member is joined to an engagement structure of the first support base. The second jaw assembly includes a second jaw member including a second arm member defining one or more apertures at least partially therethrough and a second support base extending distally therefrom, wherein an engagement structure of the second arm member is joined to an engagement structure of the second support base. One or more pivot pins are engaged with the one or more apertures of the first and second jaw members.

The invention relates to a preparation method of a lithium ion battery negative pole material capable of improving the safety performance. The method comprises the following steps of: (1) slurry configuration, (2) coating, and (3) roasting and drying. According to the invention, as a negative pole tab is coated with a lithium metaaluminate film, which not only has a good electronic insulation effect, but also can effectively obstruct battery short circuit after a battery diaphragm PP (Polypropylene) or PE (polyethylene) is punctured, and at the same time the lithium metaaluminate has good ionic conductivity, thus increasing the transmission velocity of the lithium ion battery, and reducing the probability that dendritic crystal generated by lithium separation of the lithium ion battery pierces the diaphragm. The composite negative pole tab prepared by the method plays a very important role in improving high-capacity lithium ion batteries.

The invention discloses a composite diaphragm of a power lithium ion battery. The composite diaphragm comprises a supporting layer and an inorganic coating layer, and is characterized by further comprising a polytetrafluoroethylene layer, wherein the inorganic coating layer is coated on the supporting layer, the polytetrafluoroethylene layer is coated on the inorganic coating layer, and the surface and interior of the inorganic coating layer have porous interconnection structures. According to the composite diaphragm of the power lithium ion battery, organic/inorganic composite films are compounded with a polytetrafluoroethylene microporous film, and due to the existence of the polytetrafluoroethylene microporous film, in the process of manufacturing the composite diaphragm of the power lithium ion battery and in the process of manufacturing a wound electrode group of the battery, the inorganic coating layer has good adhesive property on the composite diaphragm and is difficult to fall off; and the composite diaphragm has the advantages of high tearing strength, perforation resistant strength, high-temperature and low temperature resistance, high corrosion resistance, electrical insulating property and chemical stability, and particularly the high oxidation-reduction resistance of polytetrafluoroethylene has more superiority for prolonging the service life of the lithium ion battery and improving the use safety of the lithium ion battery.

The invention relates to an LED (Light Emitting Diode) headlamp for a motor vehicle. The LED headlamp for the motor vehicle overcomes the defects that in the prior art, beams between a dipped headlight and a headlight on full beam in the vehicle shelter from each other, the most brilliant central light emitting point of the LED lamps light directly forward to cause dazzle, the brightness of beams lighting forward is nonuniform, and a reflector has a light receiving dead angle and the like. The key points of the technical scheme are that the LED headlamp for the motor vehicle comprises a lamp cup body, a reflector, a transmitting lens, LED lamps, an LED driving circuit board and a radiator assembled and matched correspondingly. The LED headlamp for the motor vehicle is characterized in that the inner cavity of the lamp cup body is divided into an upper part and a lower part separated by a partition board in a horizontal state. A dipped headlight reflector is arranged on the inner wall face on the upper part, and the lower part is divided into a left part and a right part by a partition board. Headlights on full beam are respectively arranged on the inner wall faces of the left and right parts. LED lamps are respectively arranged on the partition boards in the upper, left and right parts. The directions of the central light emitting points of the LED lamps are vertical to the partition boards and the LED lamps directly light the dipped headlight reflector or the reflector of the headlight on full beam, respectively.

The invention relates to a binder for a lithium ion battery compound pole piece, a preparation method for the binder, a compound pole piece, a battery core, and a lithium ion battery and belongs to the technical field of lithium ion batteries. The binder for the lithium ion battery compound pole piece comprises the flowing components in parts by weight: 0.5-1.5 parts of an ethylene-vinyl acetate copolymer, 100-150 parts of barium sulfate particles, 1-1.5 parts of a thickener, and 98.5-99 parts of water. According to the invention, the surface of the pole piece is coated with a layer of the binder, a diaphragm is arranged on the surface of the binder on the pole piece, and then hot-pressing compounding is performed, so that the pole piece and the diaphragm are bound together, and the absolute positioning of the pole piece and the diaphragm is realized, a malposition phenomenon between the pole piece and the diaphragm in a following assembling process can be avoided, and the safety of the lithium ion battery can be improved.

The battery is composed of anode of composite oxides containing lithium, cathode of carbon material with lithium being embedded, winded diaphragm of polyethylene, and injected electrolyte. Characters are that inorganic oxide coating is painted on surface of cathode. Mixing inorganic oxide and cementing material prepare the inorganic oxide coating. The specific producing steps are as following: stirring inorganic oxide and cementing material for 2-4 hours in even rate; painting the admixture onto surface of the cathode evenly; standing for 30-60 seconds, and drying at 80-110 deg.C. The invention reduces reaction between surface of active electrode and electrolyte, and self-discharge. Especially, when inner diaphragm is melted caused by abuse and high temperature, the inorganic oxide coating plays good insulation effect so as to reduce opportunity of short circuit, and raise safe reliability effectively.

The invention relates to the technical field of organic light-emitting diode manufacturing, in particular to preparation of a top-emitting organic light-emitting diode (OLED) device anode structure. The top-emitting OLED device anode structure is characterized in that four layers of thin films cover a substrate, a base compatible layer, a middle reflectivity layer, a energy level matching layer and an anode modifying layer are respectively arranged on the substrate from bottom to top, multifunctionality of an anode is achieved through adoption of the design of a multi-layer thin film structure, light-emitting efficiency of a top-emitting OLED device is obviously improved, and the service life of the top-emitting OLED device is obviously prolonged. Furthermore, due to the fact that the anode is prepared by materials which are not prone to occurrence of element diffusion, probability of occurrence of shot circuit of device pixels due to the element diffusion is reduced. Due to adoption of metallic simple substance or alloy or metallic compound, raw materials can be easily obtained and are low in price, and thin film preparation methods are various.

The embodiment of the invention provides an array substrate, a preparing method of the array substrate and a display device and relates to the technical field of display. The wiring density of data leads in a densely-wired area can be reduced, and the probability of electrostatic discharge at a corner tip can be reduced. The array substrate comprises a display area and a peripheral area, wherein first data leads and at least two cascaded shifting register units are arranged in the peripheral area. The shifting register units are connected with grid lines in the display area through the first data leads. The minimum distance between every two adjacent first data leads is larger than or equal to a distance threshold value.

The invention provides a lithium-supplementing negative electrode and application thereof. The lithium-supplementing negative electrode comprises a negative electrode current collector, a negative electrode active layer arranged on at least one functional surface of the negative electrode current collector and a lithium-supplementing layer arranged on the surface of the negative electrode active layer, wherein the lithium-supplementing layer comprises lithium powder and a lithium ion conductive agent. The lithium-supplementing negative electrode not only can efficiently supplement the active lithium loss of the lithium ion battery, but also can greatly reduce the lithium precipitation risk caused by lithium supplementation, thereby ensuring the cycle performance and safety of the lithium ion battery in the long-term application process.

The invention provides a positive plate and a lithium ion battery comprising the positive plate; the positive plate comprises a positive current collector and a positive coating, the positive coatingcomprises a first coating and a second coating, the surface of the positive current collector is coated with the first coating, and the surface of the first coating is coated with the second coating;the binding power between the first coating and the positive electrode current collector is greater than the binding power between the first coating and the second coating, and/or the binding power between the first coating and the positive electrode current collector is greater than the binding power between positive electrode active material particles of the second coating, and after the positive coating of the positive plate is stripped, the total mass of the residual positive coating on the positive electrode current collector accounts for more than 10% of the total mass of the positive coating on the positive electrode current collector before stripping, so that the obtained lithium ion battery has good safety performance, and the probability of fire failure of the battery is greatlyreduced when mechanical abuse (needling and heavy impact) occurs.

The invention discloses an OLED (organic light-emitting diode) lighting substrate and a manufacture method thereof. The OLED lightening substrate comprises a substrate, wherein a positive electrode, an organic functional layer and a negative electrode are sequentially arranged on the substrate; a resistance layer is arranged between the substrate and the positive electrode, and the resistance layer is divided into multiple block-shaped resistors; the positive electrode is divided into multiple sub positive electrodes, and each sub positive electrode is connected with a block-shaped resistor in series; and the multiple block-shaped resistors are connected together through interconnection lines. The OLED lighting substrate and the manufacture method thereof disclosed by the invention have the characteristics that: a series-connection resistance layer is arranged between a power supply and the positive electrode, thus a current limitation action is achieved; and a whole large-area positive electrode is divided into smaller-area sub positive electrodes, so that the intensity of the gathered current generated by the positive electrodes isolated by resistors is weakened, the current gathering effect is weakened and short-circuit probability of the negative and positive electrodes is reduced, thus the problems that the electrode is easy to burn out and the light emitting is nonuniform are solved.

The invention discloses a wire coil for an electromagnetic rice cooker and a coiling method. The wire coil for the electromagnetic rice cooker comprises a support, a magnetic stripe and a stranded wire. The coiling method includes the following steps of firstly, dividing the stranded wire into two parts; secondly, separately coiling one part of the stranded wire on the outer surface of the support; thirdly, coiling the other part of the stranded wire on the bottom surface of the support; and fourthly, mounting the magnetic stripe on the support. During use, different parts of the stranded wire are coiled separately and gaps are reserved among turns of the stranded wire. Therefore, the wire coil compared with the prior art has the advantages that insulation distance between each two adjacent turns is increased, probability of short circuit among the turns in case of transient overvoltage and overcurrent is reduced, probability of direct short circuit among the turns as a result of failure of insulation caused by thermal ageing of insulation materials of wires is reduced, high-frequency coil loss caused by high-frequency proximity effect generated by compact arrangement of the turns is reduced, and heat of the wire coil is easy to radiate, so that uniform heating in large area of the rice cooker is facilitated.

The invention provides an electronic chip which comprises a plurality of conductive pins, wherein the conductive pins are arranged on the external surface of the electronic chip and used for providing a plurality of electrical connections between the electronic chip and an external circuit through a conductive adhesive, the first conductive pin of the conductive pins is adjacent to the second conductive pin, and a first dredging gap is formed at a corner of the first conductive pin, which is adjacent to the second conductive pin, so as to provide a circulation space for at least one conductive particle of the conductive adhesive. The invention also provides a substrate. By adopting the electronic chip and the substrate provided by the invention, the probability of the occurrence of short circuit among the conductive pins can be effectively reduced.

The invention discloses a waterproof light with an excellent heat dissipation performance, which comprises a fixing ring. A glass lens is additionally arranged in the fixing ring; the fixing ring is fixedly connected with external screw threads on the top end of an installation base through internal screw threads; a first step surface and a second step surface are arranged on inner walls of the installation base; a reflector plate, a drive circuit board and a graphite plate are sequentially arranged on the first step surface; LED (Light-emitting Diode) bulbs are uniformly arranged on the surface of the drive circuit board and penetrate through through holes in the surface of the reflector plate; a temperature sensor is arranged in the drive circuit board; a heat dissipation plate and a fixing hoop are sequentially arranged on the second step surface; heat dissipation grid plates are arranged on one surface, far away from the graphite plate, of the heat dissipation plate, and are attached to heat dissipation copper pipes from the surface; the heat dissipation copper pipes are connected with a water pump through a pipeline; the water pump is fixedly connected with the installation base; and the fixing hoop is connected with the installation base through bolts. The device has the excellent heat dissipation performance and a waterproof ability at the same time.

The present invention provides a method for driving an organic LED display device having a first and a second electrode sandwiching an organic layer defining a plurality of light emitting elements. The method comprises applying to a light emitting element a voltage within a specified voltage range, within which the risk of short circuits between the electrodes is reduced, and controlling the duty cycle of said light emitting element, so that a desired light intensity is emitted from said light emitting element. The probability of short circuits in pixels of an organic LED display device is thus reduced by avoiding operating the display pixels within voltage ranges where the chance of short circuits is high. This limitation of the applied voltage is compensated by controlling the duty cycle of the light emitting element.

The invention belongs to the technical field of lithium ion batteries and relates to a lithium ion battery diaphragm, a preparation method and a lithium ion battery. The lithium battery diaphragm provided by the invention is of a two-layer film structure which comprises a high-molecular polymer film and a polytetrafluoroethylene microporous film; a binder is applied between the high-molecular polymer film and the polytetrafluoroethylene microporous film. The diaphragm provided by the invention integrates the advantages of both sub-films, including a closing function at relatively low temperature, fairly strong strength and excellent high-temperature resistance; the diaphragm can be used stably at 200 DEG C, a complete structure is maintained at 250 DEG C, the safety performance of the battery is remarkably enhanced, and the safety of the battery is guaranteed in needling, impact and other unfavorable conditions.

The invention belongs to the technical field of lithium ion batteries and relates to a preparation method of a lithium ion battery diaphragm, a lithium ion battery diaphragm and a lithium ion battery.The preparation method of the invention comprises the following steps: fixing a base material in an unwinding mechanism in a vacuum reaction chamber, and introducing optional coating material plasmagas into the vacuum reaction chamber; The coating material is vaporized into a vacuum reaction chamber by vapor deposition equipment, and the coating material is deposited on the base material by a vapor deposition method; the base material with the coating material deposited on the surface is stored in the winding mechanism; A cooling roller is also arranged between the unwinding mechanism and the winding mechanism, and the cooling roller is located above the vapor deposition equipment. The thickness of the coating is greatly reduced compared with the traditional process, the coating has goodair permeability and uniformity; The equipment has high cleanliness, the quantity of impurities introduced is greatly reduced, and the slurry does not need to be prepared, which can reduce the environmental pollution; and The coating has no additive and excellent thermal stability and oxidation resistance are achieved in a high temperature and high pressure system.

This invention discloses one lithium ion battery shell, which comprises battery shell and cover board with isolation layer inside wall. This invention discloses the battery shell process method and the lithium ion battery in use of battery shell. The advantages of this invention comprise the following: the battery shell inside wall is set with isolation layer to lower the shortcut rate of local battery to improve battery safety and product rate.

The invention discloses a USB connecting port assembly. The USB connecting port assembly comprises a female connecting port which is matched with a male connecting port of an external connector, wherein the female connecting port comprises a master control chip, a GND pin and an ID pin; the GND pin and the ID pin are both electrically connected with the master control chip; the GND pin and the IDpin are arranged at intervals; the female connecting port further comprises an additional detecting pin which is connected with the master control chip; the additional detecting pin is positioned at the position which is close to the edge of the female connecting port; when inserted in the female connecting port, the male connecting port is in contact with the additional detecting pin; and when the master control chip receives the signal shows that the additional detecting pin is in contact with the male connecting port, the GND pin and the ID pin are controlled to energized. The invention further provides a method for detecting the USB connecting port assembly and man-machine interaction equipment. By the technical scheme, short-circuiting and electrolytic corrosion of the USB connectingport are avoided.