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1973results about How to "Good electrical properties" patented technology

Lithium ion battery and anode strip thereof and stabilization lithium metal powder

The invention belongs to the technical field of a lithium ion battery, and particularly relates to stabilization lithium metal powder. The stabilization lithium metal powder has a core shell structure; and the core layer is formed by lithium metal and is a composition consisting of an electron good conductor and a lithium ion good conductor. Compared with the prior art, the stabilization lithium metal powder provided by the invention has the advantages that: in the process of performing pre-lithiation of the anode-active material by use of the stabilization lithium metal powder, no limitation is imposed on the pressure of the cold pressing process, the 'dead lithium' disabling lithiation reaction is not produced, and the lithiation efficiency of the lithium metal powder is improved; and moreover, since the shell layer left on the electrode surface has good electron and lithium ion conductivity after the pre-lithiation, the electron and ion conductivity of the anode can be effectively improved so as to improve the electrochemical performance of the battery. In addition, the invention also discloses an anode strip performing pre-lithiation by use of the stabilization lithium metal powder, and a lithium ion battery comprising the anode strip.
Owner:NINGDE AMPEREX TECH +1

Three-dimensional compound structure based on three-dimensional MXene and general synthesis method thereof

The invention discloses a general synthesis method of a three-dimensional compound structure based on three-dimensional MXene, and belongs to the field of nano materials. The three-dimensional compound structure is composed of a three-dimensional MXene load inorganic nano structure and is of a flower-like hierarchical porous structure. The method comprises the steps that an ultrasonic atomizer isadopted for atomizing mixed suspension liquid of three-dimensional MXene particles, metal salt and an auxiliary into aerosol micro-droplets, and under inert or reactive atmosphere, high-temperature fast drying is conducted to obtain the three-dimensional compound structure with controllable structure and size; or the three-dimensional MXene particles and metal salt or a nonmetallic compound are evenly mixed in solvent or in a solid-phase mode to obtain a mixture, and high-temperature calcination is conducted under the inert or reactive atmosphere to obtain the three-dimensional compound structure with controllable structure and size. By means of the three-dimensional compound structure based on the three-dimensional MXene, the problems of inorganic nano material particle aggregation, poorconductivity and two-dimensional MXene stacking can be solved, and thus a foundation is laid for preparation, processing and various aspects of application of a MXene-based high-performance functionalmaterial.
Owner:DALIAN UNIV OF TECH

Additive high-thermal-conductivity organic silicon electronic pouring sealant and preparation method thereof

The invention discloses an additive high-thermal-conductivity organic silicon electronic pouring sealant and a preparation method thereof. The preparation method comprises the following steps of: adding vinyl-ended polydimethylsiloxane, spherical aluminum oxide, boron nitride and silicon carbide whiskers into a kneader, dehydrating and blending at the temperature of 100-150 DEG C and under the vacuum degree of 0.06-0.1MPa, cooling, and grinding for three times to obtain a substrate; adding a hydrogen-containing silicon oil crosslinking agent and a crosslinking inhibitor into the substrate at normal temperature, and fully stirring to prepare a component A; adding a platinum catalyst into the substrate, and fully stirring to prepare a component B; and uniformly blending the component A and the component B having equal part by weight, and defoaming under the vacuum degree of 0.06-0.1MPa to obtain the additive high-thermal-conductivity organic silicon electronic pouring sealant. The pouring sealant has high flowability and thermal conductivity of higher than 1.0 W.m<-1>.K<-1>, and can be widely applied to the fields of electronic apparatuses, automobiles, chip encapsulation, LED (Light-Emitting Diode) encapsulation and the like having high requirements on heat conducting performance; and a condensate has high mechanical property and high electrical property.
Owner:SOUTH CHINA UNIV OF TECH +1

Binary carbon material-conductive polymer composite nano gas-sensitive thin film and preparation method thereof

ActiveCN103897183AEnhanced conductivity and gas-sensing propertiesExcellent gas sensing performanceCvd grapheneCarbon nanofiber
The invention discloses a binary carbon material-conductive polymer composite nano gas-sensitive thin film and a preparation method thereof. The binary carbon material-conductive polymer composite nano gas-sensitive thin film is a composite thin film formed by self-assembling a binary carbon material and a conductive polymer material through chemical polymerization, the binary carbon material is a combination of any of a graphene material and a carbon nanotube as well as a carbon nanofiber, nano porous carbon or nano graphite. The composite nano thin film with excellent gas-sensitive characteristic can be prepared by fully utilizing the excellent conductivity and high specific surface area of the carbon nano material and the peculiar response characteristic of the conductive polymer, playing the synergistic and supplementary roles generated among different materials and combining an orderly controllable self-assembled film forming method. The binary carbon material-conductive polymer composite nano gas-sensitive thin film and the preparation method thereof can open up a new approach for the sensitive thin film for a gas sensor which is high in performance, low in cost and capable of working at room temperature.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Preparation method for nano-electromechanical resonator based on graphene

The invention relates to a preparation method for a nano-electromechanical resonator based on graphene. The preparation method provided by the invention comprises the following steps: (1) using transition metal as a catalyst and depositing the catalyst onto the surface of a first insulating substrate; then, using methane or acetylene as a carbon source and depositing carbon atoms onto the surface of the first insulating substrate at high temperature with a chemical gas phase deposition method to form a thin graphene layer; (2) carrying out transfer printing on the obtained thin graphene layer onto a second insulating substrate with a graph transfer printing method; (3) manufacturing metal material into a source electrode and a drain electrode by utilizing a metal vapor deposition technique; (4) rotatably coating protective glue on the surface of a sample and corroding one part of the second insulating substrate under the thin graphene layer to form a channel; and (5) corroding the protective glue and obtaining the nano-electromechanical resonator. The graphene resonator provided by the invention has the advantages of good electrical property and mechanical property. The preparation method is compatible with the existing MEMS (Micro Electro Mechanical System) process and can be used for mass integrated circuit production in future.
Owner:XIDIAN UNIV
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