Shenzhen Institute of Terahertz Technology and Innovation

Shenzhen Terahertz System Equipment Co., Ltd.

Byd Company Limited

Shenzhen Institute of Terahertz Technology and Innovation Co., Ltd.

Zte Corporation

Huawei Technologies Co., Limited

Yi Pan

Qing Ding

Shichang Peng

Chen Li

Jiawei Gao

Leqing Huang

Kunwei Dong

Yan Zhu

Meng Zhang

Rui Sun

Renzhi Yang

Teng Fei Zhang

Xiaotao Yuan

Rong Hao

Xi Jiang

Ziwen Wu

Rongyue Liu

Na Chen

Riguo Mei

Xiaoya Chang

Cui Guo

Li Bai

Zeng Pan

Zhanqiang Xue

An adhesive-coated separator for a lithium-ion battery, a preparation method thereof, and use thereof are disclosed. The adhesive-coated separator for a lithium-ion battery of the present disclosure includes a base membrane and an adhesive coating formed on a surface of the base membrane, the thickness deviation percentage of the adhesive coating is less than or equal to 10%, the thickness deviation percentage=(D−D)/D×100%, Dis a maximum value of the thickness of the adhesive coating, Dis a minimum value of the thickness of the adhesive coating, and Dis an average value of the thickness of the adhesive coating.

Adhesive-coated separator for lithium-ion batteries, method for preparing same, and applications thereof

The present disclosure relates to a lithium-replenishing material, a preparation method thereof, and a lithium-ion battery. The lithium-replenishing material comprises metal lithium particles and conductive material, and the conductive material includes a built-in segment embedded in metal lithium particles and an exposed segment external to metal lithium particles; the electrical conductivity of the conductive material is greater than 100 s/cm. The lithium-replenishing material of the present disclosure can accomplish the electron conduction between the metal lithium particles and the anode active material through the conductive material, which increases the channel of electron conduction, and at the same time facilitates the transport of lithium ions, and improves the efficiency of lithium-replenishing significantly by rapid intercalation process of lithium ions, thereby resulting in inhibiting the formation of isolated lithium effectively and avoiding the formation of dendrites piercing the battery separator and causing potential safety hazards.

Lithium-replenishing material, preparation method thereof, negative electrode and lithium-ion battery

Disclosed herein are a composite cathode material for a lithium-ion battery, a lithium-ion battery, and a vehicle. A core of the cathode material is a lithium-nickel-cobalt-manganese oxide material. A surface layer of the cathode material is a lithium-nickel-cobalt oxide material doped with an element E. There is a transition layer between the core and the surface layer. The transition layer is a lithium-nickel-cobalt-manganese oxide material doped with the element E. A content of the element E in the transition layer shows a decreasing trend in a direction from the surface layer of the cathode material to the core. A general formula for the composition of the transition layer is LiNiCoMnEO. 0≤m≤0.1, 0.01≤x≤0.1, 0.01≤y≤0.1, and 0.01≤z≤0.1. E is at least one of Al, Zr, Ti, Y, Ba or Sr.

Composite cathode material for lithium-ion battery, and vehicle

A terahertz metamaterial waveguide and device are provided. The terahertz metamaterial waveguide comprises a subwavelength substrate layer and a metal layer. One surface of the subwavelength substrate layer is plated with the metal layer, and a plurality of periodically-distributed micropores is formed in the metal layer. The subwavelength substrate layer, the metal layer, and the formed plurality of periodically-distributed micropores are described.

Terahertz metamaterial waveguide and device

A terahertz spectrum test device and system includes a femtosecond fiber laser configured to generate a pump light and a probe light. The pump light excites a terahertz transmitter to generate terahertz waves which are transmitted to a sample suspension device to irradiate a suspended to-be-tested sample, and the probe light is directly transmitted to a terahertz detector. The terahertz detector receives the terahertz waves transmitted from the sample suspension device, and then transmits the terahertz waves and the probe light together to a signal processing circuit to obtain a corresponding terahertz time-domain spectrum. By adoption of the terahertz spectrum test device and system, the to-be-tested sample need not be fixed with a clamp or other instruments, so that terahertz waves will not irradiate to the instrument used for fixing the to-be-tested sample during a terahertz spectrum test, which may otherwise affect the test result.

Terahertz spectrum test device and system

The invention relates to a terahertz full polarization state detection spectrometer, which comprises a terahertz wave generator, a polarizer, a polarization splitter, a horizontal terahertz detector and a vertical terahertz detector. The terahertz wave generator generates a terahertz wave and the polarizer optimizes the terahertz wave for purity. The sample to be detected modulates the terahertz wave after purity optimization to obtain the terahertz modulated wave. The terahertz modulated wave is decomposed by the polarization splitter into a horizontal terahertz wave and a vertical terahertz wave whose polarization states are perpendicular to each other. The two terahertz waves are detected by two corresponding terahertz detectors respectively. According to the detected result, the characteristic of the sample is analyzed. The terahertz full polarization state detection spectrometer can quickly and accurately detect all kinds of full polarization state terahertz waves and improve the detection accuracy and efficiency of the sample.

Terahertz full polarization state detection spectrometer

A plasmonic waveguide (), a biosensor chip () and a system, wherein the plasmonic waveguide () is applied to the biosensor chip (), and comprises a base () and a plasmonic structure () provided on the upper surface of the base (); the plasmonic structure () comprises a plurality of plasmons () periodically arranged, the plasmons () being metal split rings, and the annular openings of the plasmons () being used for fixing antibody probes (). The plasmon waveguide () is provided in the biosensor chip (), the target biomolecules in the detection liquid flowing into a microfluidic channel () can be captured by means of the antibody probes (), and the plasmonic waveguide () is used to enhance the signal strength of terahertz waves emitted to the biosensor chip (), thereby enhancing the signal strength of the reflected terahertz waves detected by a terahertz analyzer (), improving the detection sensitivity, the signal-to-noise ratio and the reliability.

Plasmon waveguide, biosensor chip and system

A terahertz full-polarization-state detection spectrograph is provided, which comprises a terahertz wave generator, a polarizer, a polarizing beam-splitting sheet, a horizontal terahertz detector, and a vertical terahertz detector. The terahertz wave generator produces a terahertz wave, and the purity of the terahertz wave is optimized by the polarizer; a detected sample modulates the terahertz wave, the purity of which is optimized, to obtain a terahertz modulated wave; the polarizing beam-splitting sheet decomposes the terahertz modulated wave into a horizontal terahertz wave and a vertical terahertz wave which are vertical to each other in a polarization state; the two corresponding terahertz detectors are used for detecting the two terahertz waves respectively, and then the characteristics of the detected sample are analyzed according to the detection result.

Terahertz full-polarization-state detection spectrograph

Embodiments of the present invention disclose a method and system for indicating a direction. The method is executed by a mobile terminal, and includes: determining an orientation of a screen of the mobile terminal; determining any direction in four directions east, south, west, and north of a location of the mobile terminal; determining another direction based on the determined direction when the screen of the mobile terminal is determined to be downward, so that directions for every 90&#xb0; are respectively the east, the north, the west, and the south in a clockwise direction; and displaying all the determined directions on the screen of the mobile terminal. By using the solutions in the embodiments, a user can obtain a correct direction indication even when holding the mobile terminal non-horizontally, so that accuracy of the direction indication of the mobile terminal is improved.

Method and apparatus for indicating direction

The present application relates to a terahertz time-domain spectroscopy system. In this terahertz time-domain spectroscopy system, the femtosecond laser light radiated by the femtosecond laser is collimated by a first diaphragm, and then is split by a beam splitter into a pump light and a probe light. The pump light passes through the first light path module to generate a terahertz pulse, and the probe light passes through the first light path module to generate a linear polarization probe light having the same optical distance as that of the pump light. The linear polarization probe light and the terahertz pulse are combined by a beam combiner to obtain a light beam to be detected carrying the terahertz pulse information. Two electro-optical crystals with the same thickness are used in a detection device simultaneously. Changing the crystal axis angle of the two electro-optical crystals, there is a phase compensation to the two components o light and e light of the probe light, so as to realize linear detection to high power terahertz pulse and improve measurement accuracy.

Terahertz time-domain spectroscopy system

A delay line device and a terahertz time-domain spectrometer system include: a baseplate, a slide rail component, in which the slide rail component includes a slide, a reflector, a grating ruler component, and an electric-magnetic induction component. When the electric-magnetic component, after being applied a current, cuts the magnetic induction coil to generate power to push the slide moving, the grating ruler component placed on the slide rail component collects the movement information of the slide. The slide's movement drives the reflector placed on the slide to move together to change the optical distance of a pump light, so as to generate the delay between the pump light and a probe light.

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Shenzhen, China

Yi Pan