975results about How to "Improve output characteristics" patented technology

A surface electrode (5) is installed on the light receiving surface of a solar cell element, the surface electrode (5) comprises three bus bar electrodes (5a) for extracting light-produced at the solar cell element to the outside and collecting finger electrodes (5b) connected to these bus bar electrodes (5a), and the bus bar electrodes (5a) are not less than 0.5 mm and not more than 2 mm in width and the finger electrodes (5b) are not less than 0.05 mm and not more than 0.1 mm in width. A high-efficient solar cell module can be obtained with substantially lowered resistance by increasing the number of bus bar electrode (5a) and thereby decreasing the lengths of the finger electrodes (5b).

A photovoltaic element which directly converts an optical energy such as solar light into an electric energy. After many uneven sections are formed on the surface of an n-type crystalline silicon substrate (1), the surface of the substrate (1) is isotropically etched. Then the bottoms (b) of the recessed sections are rounded and a p-type amorphous silicon layer (3) is formed on the surface of the substrate (1) through an intrinsic amorphous silicon layer (2). The shape of the surface of the substrate (1) after isotropic etching is such that the bottoms of the recessed sections are slightly rounded and therefore the amorphous silicon layer can be deposited in a uniform thickness.

The invention provides a nonaqueous electrolyte secondary battery excellent in output characteristic such as large current discharge or pulse discharge in ordinary use, high in safety by preventing destruction due to suppression of current in an abnormality such as external short-circuiting, and further large in capacity. The nonaqueous electrolyte secondary battery comprises an external can opened at one end thereof, an electrode assembly contained in the external can, and comprising a negative electrode, a separator and a positive electrode, a nonaqueous electrolyte contained in the external can, and a sealing lid group tightly sealed at the opening of the external can by way of an insulating member, wherein the sealing lid group includes an intact plate-like PTC element having a fragile portion to be easily broken due to elevation of internal pressure by gas generation.

This invention is made to improve the characteristics of a photovoltaic module in which a plurality of solar cells are electrically connected to each other with connecting members such as tabs or connecting leads. The present invention provides a method for manufacturing a photovoltaic module comprising a plurality solar cells each including a semiconductor heterojunction made by combining amorphous silicon and crystalline silicon and connecting members for connecting the plurality solar cells in which the connecting members are connected to the solar cells by soldering after a high-temperature heat treatment is applied to the solar cells, and the plurality of solar cells are electrically connected to each other with the connecting members.

A fuel cell comprised of a proton conductive electrolyte film sandwiched between a pair of catalyst layers, wherein the catalyst layer of at least the cathode is comprised of a mixture including a catalyst ingredient, an electrolytic material, and a carbon material, the carbon material is comprised of a catalyst-carrying carbon material carrying the catalyst ingredient and a gas-diffusing carbon material not carrying the catalyst ingredient, and the catalyst-carrying carbon material has an amount of adsorption of water vapor at 25° C. and a relative humidity of 90% of 50 ml/g or more.

The separator of the present invention comprises a porous composite having a porous substrate and a first porous coating layer formed on at least one surface of the porous substrate and comprising a mixture of inorganic particles and a first binder polymer; and a second porous coating layer formed on a first surface of the porous composite and comprising a mixture of cathode active material particles, a second binder polymer and a first conductive material, a third porous coating layer formed on a second surface of the porous composite and comprising a mixture of anode active material particles, a third binder polymer and a second conductive material, or both of the second porous coating layer and the third porous coating layer. Also, the separator of present invention may further comprise a fourth porous coating layer formed on at least one outermost surface thereof and comprising a fourth binder polymer.

A lithium ion secondary battery having high output characteristics even at an extremely low temperature, for example, −30° C. and high output power even in a low charged state. A graphite-based material having an R value (I_RD/I_RG) which is the ratio of peak intensity (I_RD) at 1,300 to 1,400 cm⁻¹ to peak intensity (I_RG) at 1,580 to 1,620 cm⁻¹ measured in its Raman spectrum of 0.3 to 0.6 and an H value (I_H(110)/I_H(004)) which is the ratio of the peak height intensity (I_H(110)) of the face (110) to the peak height intensity (I_H(004)) of the face (004) in its X-ray diffraction of 0.5 to 2.0 or a C value which is the ratio of the peak integral intensity (I_C(110)) of the face (110) to the peak integral intensity (I_C(004)) of the face (004) of 0.4 to 1.50 is used as a negative-electrode active material.

Disclosed is a porous membrane for a secondary battery, which has further improved output characteristics and long-term cycle characteristics when compared with conventional porous membranes. The porous membrane for a secondary battery is used for a lithium ion secondary battery or the like. Specifically disclosed is a porous membrane for a secondary battery, which contains polymer particles A that have a number average particle diameter of 0.4 μm or more but less than 10 μm and a glass transition temperature of 65° C. or more and polymer particles B that have a number average particle diameter of 0.04 μm or more but less than 0.3 μm and a glass transition temperature of 15° C. or less. It is preferable that the polymer particles B have a crystallization degree of 40% or less and a main chain structure that is composed of a saturated structure.

The manufacturing method of the solar cell according to the present invention includes: 1) a first etching process in which an anisotropic etching is performed on an inner wall of each of a plurality of through holes, and 2) a second etching process in which an anisotropic etching is performed on a light-receiving surface. In the first etching process, a high concentration NaOH water solution (about 5% by weight) is used. Meanwhile, in the second etching process, a low concentration (about 1.5% by weight) NaOH water solution is used.

A subject is to provide a nonaqueous electrolyte excellent in cycle performances such as capacity retention after cycling, output after cycling, discharge capacity after cycling, and cycle discharge capacity ratio, output characteristics, high-temperature storability, low-temperature discharge characteristics, heavy-current discharge characteristics, high-temperature storability, safety, high capacity, high output, high-current-density cycle performances, compatibility of these performances, etc. Another subject is to provide a nonaqueous-electrolyte secondary battery employing the nonaqueouselectrolyte. The subjects have been accomplished with a nonaqueous electrolyte which contains a monofluorophosphate and/or a difluorophosphate and further contains a compound having a specific chemical structure or specific properties.

The invention relates to an external cavity laser with tunable wavelength, comprising a semiconductor light amplifier chip and a laser external cavity. The laser external cavity comprises a grid filter, a phase regulator and a silicon-based micro ring chip, wherein the grid filter and the silicon-based micro ring chip constitute a wavelength tunable optical filter, which realizes the wavelength tuning of the consisted optical filter through spectral line tuning of the grid filter and/or the silicon-based micro ring chip. The micro ring filter in the silicon-based micro ring chip of the tunable external cavity adopts the mature silicon photonic technology, which greatly reduces the manufacture difficulties of the tunable filter, reduces the manufacture cost of the member, utilizes the current external cavity laser technology platform to perform smooth transition, improves the integration degree of the member of this kind, and simplifies the preparation technology.

The ultrasound motor is composed of subassemblies of stator, mover and bracket. The stator consists of stepped cylinder, eight pieces of piezoelectric ceramics (PC), pressing block, support and two driving wheels. Electrodes distributed along circumferencial direction evenly are plated on surface of PC. Mover includes slide block and slide bar. The slide bar is contacted to two drive feet of the stator; and the slide bar is fixed on the bracket. The mover is held between bracket and stator. Through supporting effect, springs and nuts on the bracket provide needed pre-compression between stator and mover. Through different fan-shaped electrodes, the drive signal acts on pieces of PC. Under inverse piezo effect, PCs vibrate to excite a natural vibration of stator so as to realize reciprocating rectilinear motion of slide block of mover. Realizing rectilinear motion in two directions of mover, the motor provides features of large output force and speed, and higher efficiency.

An electrolyte for a rechargeable lithium battery includes a compound represented by Formula 1, a lithium salt, and a non-aqueous organic solvent:

A[OSi(C_mH_2m+1)₃]₃   (1)

wherein A is P or B, and m is an integer ranging from 0 to 6.

The invention relates to a multilayer high-power nearly-spherical nano friction generator and an application thereof. The nearly-spherical nano friction generator includes a first electrode layer, an intermediate layer and a second electrode layer which are arranged in a laminated manner in an axial direction from inside to outside. An induction field is generated through friction between the first electrode layer and the intermediate layer or/and the intermediate layer and the second electrode layer. The first electrode layer and the second electrode layer are layered structures which include conductive layers. The intermediate layer is a layered structure which includes a high-molecular polymer layer. Voltage and current output electrodes of the nano friction generator are the conductive layers of the first electrode layer and the second electrode layer. The invention also provides a nano friction generator group which is obtained through serial or parallel connection of two or more than two nano friction generators. The invention also provides a child toy which includes the nano friction generator and a light-emitting diode.

A power storage device in which charge capacity and discharge capacity are high and deterioration in battery characteristics due to charge/discharge is small is provided. A power storage device in which charge capacity and discharge capacity are high and output characteristics are excellent is provided. A power storage device in which charge capacity and discharge capacity are high and cycle characteristics are excellent is provided. A power storage device includes a negative electrode. The negative electrode includes a current collector, an active material including a plurality of protrusions protruding from the current collector and an outer shell in contact with and attached to surfaces of the plurality of protrusions, and graphene in contact with and attached to the outer shell. Axes of the plurality of protrusions are oriented in the same direction. A common portion may be provided between the current collector and the plurality of protrusions.

A method for mounting a coil onto a stator for a rotary electric machine. The method includes forming a coil piece by winding wire having a flat cross section into a single row lamination state including wire layers that are aligned along a line that is perpendicular to flat surfaces of the wire. The coil piece is formed so that a first portion to be inserted in the slot and a second portion that is not inserted in the slot appear alternately along the coil piece. The method also includes displacing the wire layers at the first portion from one another to change the single row lamination state to a connectively laminated stat e in which the wire layers at the portion to be inserted in the slot each adjacent pair of the wire layers partially overlap with respect to a direction perpendicular to the flat surfaces of the wire. The method further includes inserting the wires of the first portion into the slot, by passing each of the wire layers through the opening of the slot successively from the wire layer at the top of the lamination and displacing each of the wire layers at the first portion from each other.

The embodiment of the invention provides a shift register unit, a gate drive circuit and a display device, and can enhance the output capacity of a signal output end and shorten the fall time of output waveform. The shift register unit provided by the invention comprises a first output module, a second output module, an input module, a drop-down control module, a drop-down module and a reset module, wherein under the control of a pull-up control node, the signal of a clock signal end is output to a signal output end; under the signal control of a signal input end, the voltage of a first power supply end is output to the pull-up control node; under the signal control of the signal input end, the signal of a drop-down control node drops down to the voltage of a second power supply end; under the control of the drop-down control node, the signals of the pull-up control node and the signal output end drop down to the voltage of the second power supply end; under the control of a reset signal end, the signal of the first power supply end is output to the drop-down control node. The shift register unit, the gate drive circuit and the display device, provided by the embodiment of the invention, are applied to the production and manufacturing of display panels.

The invention discloses a cantilever-type piezoelectric diaphragm pump. The cantilever-type piezoelectric diaphragm pump is composed of a vibration excitation unit, a pump cavity body and a flow channel structure. The vibration excitation unit is composed of a pump body, an adjustable pressing mechanism, a piezoelectric vibrator, a vibration transmission piston and a PET diaphragm. The piezoelectric vibrator is composed of a copper substrate and a piezoelectric ceramic piece. Compared with the traditional method of periphery fixing or wave joint supporting of a circular oscillator, the method of cantilever supporting of the rectangular piezoelectric vibrator has the advantages that deflection is large, tail end output amplitude is large, and simple harmonic frequency is low. Meanwhile, the length of a cantilever of the rectangular piezoelectric vibrator is adjustable, and therefore a vibration system has different vibration characteristics so as to meet different requirements for output performance. The adopted PET diaphragm material has the advantages of being good in abrasive resistance, dimensional stability and electrical insulation, nontoxic, impermeable, light in weight and the like, and further has the advantages of being safe and reliable, free of pollution and the like as a pump cavity vibrating diaphragm for conveying chemical and medical liquid. The piezoelectric vibrator is not contacted with the conveyed liquid directly, and therefore the piezoelectric pump can work at high working voltage and is good in output performance.