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1179results about How to "Fast conduction" patented technology

Silicon-carbon composite anode material and preparing method thereof

The invention provides a silicon-carbon composite anode material, which comprises a nuclear shell structure and a support substrate, wherein particle size of the silicon-carbon composite anode material is 1-200 micrometers, and porous carbon serving as the support substrate is obtained through decomposition of biomass materials. The invention further provides a preparing method of the silicon-carbon composite anode material, which includes the following steps: 1 reaming the biomass materials in physical activation or chemical activation mode to prepare the porous carbon, or preparing small molecular organics serving as a precursor of the porous carbon in hydrolyzing mode; 2 mixing silica particles and the obtained porous carbon or the precursor of the porous carbon in solution and performing ultrasonic treatment; 3 evaporating the solution mixture to dry so as to obtain solid-state powder; and 4 drying the solid-state powder, and performing thermal treatment, crushing and sieving on the solid-state powder to obtain the silicon-carbon composite anode material. The silicon-carbon composite anode material and the preparing method thereof are simple in process, short in flow path, easy to operate and low in cost, and lithium ion batteries manufactured by the silicon-carbon composite anode material are suitable for various mobile electronic equipment or devices driven by mobile energy.
Owner:SHANGHAI JIAO TONG UNIV

Nonlinear System Identification Techniques and Devices for Discovering Dynamic and Static Tissue Properties

A device for measuring a mechanical property of a tissue includes a probe configured to perturb the tissue with movement relative to a surface of the tissue, an actuator coupled to the probe to move the probe, a detector configured to measure a response of the tissue to the perturbation, and a controller coupled to the actuator and the detector. The controller drives the actuator using a stochastic sequence and determines the mechanical property of the tissue using the measured response received from the detector. The probe can be coupled to the tissue surface. The device can include a reference surface configured to contact the tissue surface. The probe may include a set of interchangeable heads, the set including a head for lateral movement of the probe and a head for perpendicular movement of the probe. The perturbation can include extension of the tissue with the probe or sliding the probe across the tissue surface and may also include indentation of the tissue with the probe. In some embodiments, the actuator includes a Lorentz force linear actuator. The mechanical property may be determined using non-linear stochastic system identification. The mechanical property may be indicative of, for example, tissue compliance and tissue elasticity. The device can further include a handle for manual application of the probe to the surface of the tissue and may include an accelerometer detecting an orientation of the probe. The device can be used to test skin tissue of an animal, plant tissue, such as fruit and vegetables, or any other biological tissue.
Owner:MASSACHUSETTS INST OF TECH

Electromagnetic shielding heat-dissipation film and manufacturing method thereof

The invention provides an electromagnetic shielding heat-dissipation film and a manufacturing method thereof. The electromagnetic shielding heat-dissipation film comprises a heat-dissipation film layer, a shielding film layer and a wave-absorbing film layer, wherein the heat-dissipation film layer is a synthetic graphite film, the shielding film layer is a metal film, and the wave-absorbing film layer is an organic binder film mixed with soft magnetic material powders. The method for manufacturing the electromagnetic shielding heat-dissipation film comprises the following steps: 1) attaching a heat-dissipation film to a smooth high-temperature-resistant film layer to form the heat-dissipation film layer; 2) depositing the metal film onto the surface of heat-dissipation film through a gas phase method or a liquid phase method or the combination of the two to form the shielding film layer; 3) coating organic binder mixed with the soft magnetic material powders onto the surface, wherein the metal film heat-dissipation film are deposited, and carrying out solidification under the function of high temperature or a catalyst; and 4) stripping the high-temperature-resistant film layer on the surface of the heat-dissipation film to obtain the electromagnetic shielding heat-dissipation film.
Owner:SUZHOU RIDEA MATERIAL TECH

Heat conductive silicone grease composition and cured product thereof

Provided is a heat conductive silicone grease composition including (A) 100 parts by mass of an organopolysiloxane containing 2 or more alkenyl groups bonded to silicon atoms within each molecule, (B) an organohydrogenpolysiloxane containing 2 or more hydrogen atoms bonded to silicon atoms within each molecule, in sufficient quantity to provide from 0.1 to 5.0 hydrogen atoms bonded to silicon atoms within the component (B) for each alkenyl group within the component (A), (C) 100 to 2,200 parts by mass of a heat conductive filler, (D) an effective quantity of a platinum-based catalyst, and (E) an effective quantity of an addition reaction retarder, in which the component (C) includes more than 90% by mass and no more than 100% by mass of an indium powder with an average particle size of 0.1 to 100 μm. Also provided is a heat conductive silicone cured product obtained by curing the above composition by heating at a temperature equal to, or greater than, the melting point of the indium powder. Further provided is an electronic device including an electronic component, a heat radiating member, and a heat conductive member including the above cured product disposed between the electronic component and the heat radiating member. Still further provided is a method of curing the above composition. Even further provided is a method of forming a heat conductive member between an electronic component and a heat radiating member. The above heat conductive silicone grease composition generates a suitably thin cured product with excellent thermal conductivity that prevents problems such as the contamination of components other than the coated component, and the leakage of oily materials from the product if used over extended periods.
Owner:SHIN ETSU CHEM IND CO LTD
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