Epicmems(xiamen) Co. Ltd

Contemporary Amperex Technology Co., Ltd.

Contemporary Amperex Technology (Hong Kong) Limited

Ningde Amperex Technology Limited

China Shenhua Energy Company Limited

Kehua Hengsheng Co., Ltd.

Zhangzhou Kehua Technology Co., Ltd.

Contemporary Amperex Technology Limited

Wei Wang

Nianchu Hu

Bin Jia

Ping Li

Peng Wang

Xiaobo Chen

Yongshou Lin

Yao Li

Yuepan Hou

Jiang Jiang

Mingguo Zhu

Chengdu Liang

Kai Wu

Na Liu

Meng Wang

Lin Ma

Shoujiang Xu

Leimin Xu

Feng Qin

Sien Chen

Chunyan Feng

Zhi Wang

Liang Wang

Shumin Wang

Kaiqin Yu

Xin Zeng

Weilong Lin

Xiaofan Wang

Xinfu Xiao

Hui Liu

Chi Zhang

Jiajing Gao

Yanhao Peng

Zhijiang Liu

Dongyan Zhao

Huan Gao

Fang Li

Zhijia Lv

Lihua Cao

Xing Wei

Yanchao Li

Shaopeng Shi

Hao Zhu

Yimou Zhang

Shaosheng Cheng

Jiefei Gong

Yanqing Chen

Weidong Song

Shaohui Zhang

Fengyu Guo

Wen Yu

The present disclosure provides a radio frequency filter, including: a substrate; a supporting electrode protruded on a front surface of the substrate; and a thin film structure formed on the substrate and spaced with the substrate by the supporting electrode. An end surface of a top end of the supporting electrode is in sealing contact with a front surface of the thin film structure.

Radio frequency filter

The present disclosure provides a method of preparing a radio frequency filter, including: a substrate; a supporting electrode protruded on a front surface of the substrate; and a thin film structure formed on the substrate and spaced with the substrate by the supporting electrode. An end surface of a top end of the supporting electrode is in sealing contact with a front surface of the thin film structure.

Method of preparing radio frequency filter

Embodiments of the present application provide a battery. The battery includes: a battery cell comprising a pressure relief mechanism, at least a portion of the pressure relief mechanism protruding outward from a first wall of the battery cell, and the pressure relief mechanism being configured, when an internal pressure or temperature of the battery cell reaches a threshold, to be actuated to release the internal pressure; a thermal management component for containing a fluid to adjust a temperature of the battery cell; wherein a first surface of thermal management component is attached to the first wall of the battery cell, the first surface of thermal management component is provided with an avoidance chamber, and the avoidance chamber is configured to accommodate the at least portion of the pressure relief mechanism. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

Battery, power consumption device, method and device for preparing a battery

A method of manufacturing a bulk acoustic wave filter is provided, including: forming an acoustic reflection air cavity, a sacrificial layer, a seed layer, a lower electrode layer and a piezoelectric layer of n resonators on a substrate in sequence, wherein n is greater than or equal to 2; taking N from 1 to n for respectively repeating following steps: forming an N-th metal hard mask layer, defining an effective area of a first resonator to an N-th resonator by using a photolithography process, removing the N-th metal hard mask layer outside the effective area of the first resonator to the N-th resonator, oxidizing the piezoelectric layer outside the effective area of the first resonator to the N-th resonator to form an N-th oxidized part of the piezoelectric layer, and etching the N-th oxidized part of the piezoelectric layer; removing the metal hard mask layer of the effective area of the first resonator to the N-th resonator, so as to form the piezoelectric layer having different thicknesses of the first resonator to the N-th resonator; and forming an upper electrode layer on the piezoelectric layer having different thicknesses of the first resonator to the N-th resonator.

Bulk acoustic wave filter and method of manufacturing bulk acoustic wave filter

A chip encapsulation structure, including: a wafer provided with a groove; a first metal wire arranged on surfaces of the groove and the wafer; a metal solder ball arranged on the first metal wire or on a metal pad of the chip, and is configured to solder the metal pad of the chip to the first metal wire; a first plastic encapsulation film covering upper surfaces of the wafer, the chip and the first metal wire, and entering a gap between a periphery of a functional area of the chip and the first metal wire, so as to form a closed cavity among the wafer, the groove and the chip; an inductive structure arranged on an upper surface of the first plastic encapsulation film and/or a lower surface of the wafer, and connected to the chip through the first metal wire; and a pad arranged on the inductive structure.

Chip encapsulation structure and encapsulation method

Embodiments of the present application provide a battery, a power consumption device, a method and device for preparing a battery. The battery includes: a battery cell including a pressure relief mechanism, the pressure relief mechanism being disposed at a first wall of the battery cell; and a thermal management component configured to accommodate a fluid to adjust a temperature of the battery cell; where a first surface of the thermal management component is attached to the first wall of the battery cell, the thermal management component is configured to be capable of being damaged by emissions discharged from the battery cell when the pressure relief mechanism is actuated, such that the emissions pass through the thermal management component. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

A communication method and a communication device based on a parallel system, a terminal and a computer readable storage medium are provided. The parallel system includes a fieldbus and two or more communication nodes connected to the fieldbus in parallel. The communication method includes: acquiring a status parameter of a target communication node; converting the status parameter into a logic level signal; generating an input differential signal based on the logic level signal; sending the input differential signal to the fieldbus and synchronously receiving an output differential signal from the fieldbus, where the output differential signal is generated by the fieldbus by performing a wired-AND operation on input differential signals received from the two or more communication nodes; and acquiring information of the communication nodes connected to the fieldbus based on the output differential signal.

Communication method and device based on parallel system, and terminal

The present disclosure provides a bulk acoustic wave resonator, a manufacturing method thereof, and a filter, wherein the bulk acoustic wave resonator includes: a substrate; an acoustic reflection unit on the substrate; a piezoelectric stack structure on the acoustic reflection unit; and a pad on the piezoelectric stack structure; wherein the pad has an overlapping region with the acoustic reflection unit. The acoustic wave resonator, the manufacturing method thereof and the filter of the present disclosure can effectively reduce connection resistance of the bulk acoustic wave resonator, thereby reducing insertion loss of the filter.

Bulk acoustic wave resonator, manufacturing method of the same, and filter

Provided is a steam turbine overspeed protection system, includes a drive gear arranged to match a rotation speed of a rotor of a steam turbine; a rotating shaft parallel to an axis of the drive gear and capable of rotating at a critical rotation speed; a protective gear arranged on the rotating shaft and forming a lead screw nut mechanism with the rotating shaft, and arranged to be capable of engaging with the drive gear when the rotation speed of the drive gear exceeds the critical rotation speed; and an operating rod connected to the protective gear; wherein, when the drive gear engages with the protective gear, the protective gear can move in the axial direction of the rotating shaft and thereby drive the operating rod to move and produce an action that activates a protection device for preventing steam turbine overspeed.

Steam turbine overspeed protection system, and steam turbine

The disclosure relates to an output electrode plate and a battery module. The output electrode plate comprises a first metal plate. The first metal plate includes a first region and a second region in a first direction. The first region includes a first overcurrent portion and a second overcurrent portion in a second direction. The second region is connected to the first region. The first overcurrent portion is provided with a through hole which extends in a thickness direction thereof, and a projection of the through hole along the first direction does not exceed a projection of the second region along the first direction in the second direction, and the first metal plate is formed with a minimum overcurrent section at the through hole, such that the minimum overcurrent section is first fused when a current flowing through the first metal plate is greater than a preset current.

Output electrode plate and battery module

The present invention relates to the field of the Li-ion battery and, particularly, relates to a cathode material for the Li-ion battery, a method for preparing the same and a Li-ion battery containing the same. A surface of the cathode material of spinel type lithium-manganese-nickel-containing composite oxide of the present invention is coated with a complex coating layer composed of a first coating layer containing LiLaZrOand a second coating layer containing LiNbO. The method includes: firstly coating the first coating layer containing LiLaZrOon the surface of spinel type lithium-manganese-nickel-containing composite oxide in a solid phase method; and then coating the second coating layer containing LiNbOin a hydro-thermal method. The cathode material of the present invention improves cycle stability and rate performance of spinel type lithium-manganese-nickel-containing composite oxide, and meanwhile reduces dissolution and erosion effect of the electrolyte on the cathode material during charging or discharging.

Cathode material for Li-ion battery, method for preparing the same and Li-ion battery containing the same

An anti-explosion package of soft-packed secondary battery, including: upper film, lower film, packaging area and anti-explosion area, an outer edge of upper film and lower film are sealed to form hollow cavity for accommodating naked battery core; packaging area is provided on at least one outer edge of upper film and lower film, anti-explosion area is arranged in packaging area, packaging areas of upper film and lower film are adhered together except location of anti-explosion area, so that upper film and lower film are sealed at this side, anti-explosion area includes opening area and transition area successively arranged in a direction from an edge of packaging area close to hollow cavity to an edge away from hollow cavity; portion of the upper film and lower film at opening area is not adhered, portion located at transition area is adhered with intensity less than transition area.

Anti-explosion package of soft-packed secondary battery

Growing community of inventors

Fujian, China

Wei Wang