Patents by Inventor Meng Cheng
Meng Cheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20220352550Abstract: A solid-state battery, a battery module, a battery pack, and an apparatus associated therewith are provided. In some embodiments, the solid-state battery includes a solid-state electrolyte, where the solid-state electrolyte includes a sulfide electrolyte layer and at least one polymer electrolyte layer provided on a surface of the sulfide electrolyte layer, and the solid-state electrolyte satisfies the following condition: thickness of the sulfide electrolyte layer?thickness of the polymer electrolyte layer on one side ?84.2?80.2w. The polymer electrolyte layer having an appropriate thickness in this disclosure can improve interfacial infiltration between the current sulfide electrolyte layer and an electrode without seriously reducing the overall energy density of the battery, thereby overcoming defects of sulfide electrolyte in disclosures in solid-state batteries to a large extent and improving cycling performance and safety performance of solid-state batteries.Type: ApplicationFiled: July 15, 2022Publication date: November 3, 2022Inventors: Bobing Hu, Chengyong Liu, Yongsheng Guo, Qian Li, Jiawei Fu, Meng Cheng
-
Publication number: 20220322256Abstract: A method by a user equipment (UE) is described. The method includes receiving, from a base station, system information including physical random access channel (PRACH) configuration information, wherein the PRACH configuration information includes a list of preamble index ranges and one or more first reference signal received power (RSRP) thresholds, wherein each preamble index range is associated with a synchronization signal block (SSB); selecting, based on a quantity of antenna branch equipped for the UE, one first RSRP threshold from the one or more first RSRP thresholds; selecting, based on one or more synchronization signal (SS)-RSRP values of a set of SSBs and the selected first RSRP threshold, an SSB from the set of SSBs; selecting a preamble index from the first preamble index range associated with the selected SSB; selecting, for the UE, a non-coverage enhancement (CE) mode or a CE mode, at least based on the selected first RSRP threshold.Type: ApplicationFiled: March 15, 2022Publication date: October 6, 2022Inventors: Meng CHENG, SHOHEI YAMADA, LIQING LIU, HIROKI TAKAHASHI
-
Publication number: 20220285204Abstract: A method for preparing a semiconductor device includes: providing a semiconductor substrate, in which a trench is formed on the semiconductor substrate, a filling layer is formed in the trench, and a void is formed in the filling layer; removing a portion of the filling layer to expose the void; forming a plug, in which the plug is configured to plug the void and extends into the void by at least a preset distance; and removing a portion of the filling layer and remaining the plug with at least a preset height until the filling layer reaches a preset thickness to form a contact hole.Type: ApplicationFiled: August 8, 2021Publication date: September 8, 2022Applicant: CHANGXIN MEMORY TECHNOLOGIES, INC.Inventors: Jingwen LU, HAI-HAN HUNG, MENG-CHENG CHEN
-
Publication number: 20220200004Abstract: This application provides a lithium secondary battery and a negative electrode plate for the lithium secondary battery. The negative electrode plate includes a negative electrode current collector and a negative electrode active material layer disposed on at least one surface of the negative electrode current collector, where a surface of the negative electrode active material layer closer to the current collector is provided with an elastic coating. And the elastic coating includes an elastic polymer and a conductive agent. At a pressure of 1 MPa to 20 MPa, the elastic coating has a compression deformation of 20% to 80% and an elastic modulus of 1 MPa to 800 MPa. And optionally, at the pressure of 1 MPa to 20 MPa, the elastic coating has a compression deformation of 30% to 60% and an elastic modulus of 5 MPa to 100 MPa.Type: ApplicationFiled: January 24, 2022Publication date: June 23, 2022Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Bobing HU, Chengyong LIU, Yongsheng GUO, Meng CHENG, Jiawei FU, Qian LI, Chengdu LIANG
-
Publication number: 20220123353Abstract: The solid electrolyte membrane in this application has a first surface and a second surface opposite the first surface, where the first surface is provided with several micropores that extend into an interior of the solid electrolyte membrane without penetrating to the second surface. This application further provides a solid-state lithium metal battery, battery module, battery pack, and apparatus containing such solid electrolyte membrane. In the solid electrolyte membrane provided in this application, the micropores provided on the first surface of the solid electrolyte membrane do not penetrate to the opposite second surface, so that lithium ions can be induced to deposit in the micropores. This reduces the risk of lithium dendrites growing or even penetrating through the solid electrolyte membrane due to non-uniform deposition of lithium ions at other locations, thereby preventing short circuit of a solid-state lithium metal battery.Type: ApplicationFiled: December 29, 2021Publication date: April 21, 2022Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Jiawei FU, Chengyong LIU, Bobing HU, Qian LI, Meng CHENG, Yongsheng GUO
-
Publication number: 20220115666Abstract: This application provides a negative electrode plate, a lithium metal battery, and an apparatus including the lithium metal battery. The negative electrode plate includes a negative electrode current collector and a lithium-metal negative electrode disposed on at least one surface of the negative electrode current collector, where a polymer protective film is disposed on a surface of the lithium-metal negative electrode away from the negative electrode current collector, the polymer protective film includes a citric acid copolymer, and a number-average molecular weight Mn of the citric acid copolymer is 10,000 to 1,000,000. In this application, a polymer protective film with high tensile strength, high puncture strength, high elongation, and high electrolyte holding capacity may be formed on the surface of the lithium-metal negative electrode in the negative electrode plate.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Qian LI, Meng CHENG, Chengyong LIU, Bobing HU, Jiawei FU, Shengyuan HUANG, Yongsheng GUO
-
Publication number: 20220109180Abstract: The present application discloses a lithium metal battery, a process for preparing the same, an apparatus containing the lithium metal battery, and a negative electrode plate. The lithium metal battery includes a positive electrode plate, a negative electrode plate and an electrolyte, the positive electrode plate including a positive electrode current collector and a positive electrode active material layer arranged on at least one surface of the positive electrode current collector and comprising a positive electrode active material, wherein the negative electrode plate includes a polymer material base layer; and a lithium-based metal layer that is directly bonded to at least one surface of the polymer material base layer.Type: ApplicationFiled: December 17, 2021Publication date: April 7, 2022Applicant: Contemporary Amperex Technology Co., LimitedInventors: Qian LI, Chengyong Liu, Yongshen Guo, Jiawei Fu, Bobing Hu, Meng Cheng
-
Publication number: 20220069355Abstract: This application provides a lithium metal battery, and relates to the battery field. The lithium metal battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolytic solution infiltrating the separator. The negative electrode includes a negative electrode current collector and a lithium-aluminum alloy layer disposed on at least one surface of the negative electrode current collector; and the electrolytic solution includes an electrolyte and a solvent, where the solvent contains a film-forming agent, and the film-forming agent is FEC and/or DFEC.Type: ApplicationFiled: November 8, 2021Publication date: March 3, 2022Inventors: Meng CHENG, Chengyong LIU, Bobing HU, Yongsheng GUO, Jiawei FU, Qian LI, Chengdu LIANG
-
Patent number: 11217822Abstract: The present application provides a preparation method for a solid electrolyte, including: acquiring an initial reaction mixture including a lithium precursor, a central atom ligand and an organic solvent; acquiring a modified solution including a borate ester and the organic solvent; mixing the initial reaction mixture and the modified solution, and drying to acquire an initial product; performing a grinding, cold press and heat treatment to the initial product to obtain the solid electrolyte. In the preparation method provided by the present application, a B and O co-doped sulphide solid electrolyte can be obtained by modifying the sulphide solid electrolyte with the borate ester as a doping raw material. The ionic conductivity of the prepared sulphide solid electrolyte is significantly improved, which is also conducive to improvement of energy density of the all-solid-state batteries.Type: GrantFiled: June 17, 2020Date of Patent: January 4, 2022Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Chengdu Liang, Chengyong Liu, Bobing Hu, Jiawei Fu, Qian Li, Meng Cheng, Yongsheng Guo
-
Patent number: 11108597Abstract: Example data transmission methods and apparatus are described. One example method includes obtaining at least two signature sequences used to perform multiple access for at least two to-be-sent data packets by a user equipment. The user equipment processes the at least two data packets by respectively using corresponding signature sequences, to obtain at least two transmit sequences. The user equipment sends the at least two transmit sequences to a network device on a same time-frequency resource. Then the network device obtains the at least two signature sequences used by the user equipment to send the at least two transmit sequences, and separately detects a corresponding transmit sequence based on each signature sequence, to obtain the at least two data packets. The user equipment can transmit a plurality of data packets on a same time-frequency resource in a same slot.Type: GrantFiled: July 18, 2019Date of Patent: August 31, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Meng Cheng, Xiuqiang Xu, Yiqun Wu, Yan Chen
-
Publication number: 20210257657Abstract: The present application provides a preparation method for a solid electrolyte, including: acquiring an initial reaction mixture including a lithium precursor, a central atom ligand and an organic solvent; acquiring a modified solution including a borate ester and the organic solvent; mixing the initial reaction mixture and the modified solution, and drying to acquire an initial product; performing a grinding, cold press and heat treatment to the initial product to obtain the solid electrolyte. In the preparation method provided by the present application, a B and O co-doped sulphide solid electrolyte can be obtained by modifying the sulphide solid electrolyte with the borate ester as a doping raw material. The ionic conductivity of the prepared sulphide solid electrolyte is significantly improved, which is also conducive to improvement of energy density of the all-solid-state batteries.Type: ApplicationFiled: June 17, 2020Publication date: August 19, 2021Applicant: Contemporary Amperex Technology Co., LimitedInventors: Chengdu LIANG, Chengyong LIU, Bobing HU, Jiawei FU, Qian LI, Meng CHENG, Yongsheng GUO
-
Patent number: 11070413Abstract: Embodiments of the present invention provide a resource mapping method. The method includes: obtaining a modulation symbol generated based on M code words, where M is a positive integer greater than or equal to 1; mapping the modulation symbol generated based on the M code words to a time-frequency resource in one or more mapping patterns, where the mapping pattern is a pattern of mapping every Q modulation symbols to one mapping unit, the mapping unit includes F resource units, F is a positive integer greater than or equal to 1, Q is a positive integer meeting 1?Q?F, the mapping pattern includes a sparse mapping pattern, and the sparse mapping pattern is a mapping pattern meeting F?2 and 1?Q<F; and sending the mapped modulation symbol generated based on the M code words.Type: GrantFiled: January 18, 2019Date of Patent: July 20, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Meng Cheng, Yiqun Wu, Lei Wang, Xiuqiang Xu, Yan Chen
-
Publication number: 20200368910Abstract: A collaborative-robot control system is provided in the invention. The collaborative-robot control system includes a plurality of test machines, a plurality of collaborative robots, a first control system and a second control system. The plurality of test machines are configured in a plurality of paths. When the second control system assigns a first collaborative robot of the plurality of collaborative robots in a waiting area to a first test machine in a first path of the plurality of paths and the first collaborative robot is being blocked by a second collaborative robot of the plurality of collaborative robots in the first path, the second control system generates a push-forward command and transmits the push-forward command to the first control system. The first control system sends the push-forward command to the second collaborative robot to order the second collaborative robot to leave the first path first.Type: ApplicationFiled: May 20, 2020Publication date: November 26, 2020Applicant: Winbond Electronics Corp.Inventors: Te-Wei CHU, Chen-Meng CHENG, Chun-Ming HUANG, Kuang-Tai CHEN, Yu-Jen CHANG, Tsung-Hsien WU
-
Patent number: 10790926Abstract: The present disclosure discloses a data processing method, a network device, and a terminal. In this method, a transmit end combines basic modulation symbols obtained after basic modulation is performed on all layers of data, to obtain a combined symbol vector X. The transmit end maps the symbol vector X to Q resource elements to obtain a data vector S. A symbol quantity of the symbol vector X is greater than a symbol quantity of the data vector S. The symbol quantity of the data vector S is Q. Q is a positive integer. Therefore, non-orthogonal spreading and superposition transmission of a plurality of terminals can be implemented in both uplink and downlink, thereby effectively improving transmission efficiency.Type: GrantFiled: December 13, 2018Date of Patent: September 29, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Meng Cheng, Yiqun Wu, Yan Chen
-
Patent number: 10547486Abstract: A data transmission method and apparatus are provided. The method includes: modulating, based on a codebook, every N information bits of to-be-transmitted data into one M-dimensional modulation symbol, where the codebook is generated based on an M-dimensional modulation constellation, the M-dimensional modulation constellation includes M modulation constellations, a constellation point in an mth modulation constellation in the M modulation constellations is obtained by mapping N information bits based on an mth information bit subset, the mth information bit subset includes information bits on some locations in the N information bits, and a union set of M information bit subsets respectively corresponding to the M modulation constellations is the N information bits, where M and N are integers greater than or equal to 2, and m is 1, 2, . . . , or M; and sending the generated M-dimensional modulation symbol. The technical solutions can reduce complexity when a modulation signal is demodulated.Type: GrantFiled: March 18, 2019Date of Patent: January 28, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Meng Cheng, Yiqun Wu, Yan Chen
-
Publication number: 20190342121Abstract: Example data transmission methods and apparatus are described. One example method includes obtaining at least two signature sequences used to perform multiple access for at least two to-be-sent data packets by a user equipment. The user equipment processes the at least two data packets by respectively using corresponding signature sequences, to obtain at least two transmit sequences. The user equipment sends the at least two transmit sequences to a network device on a same time-frequency resource. Then the network device obtains the at least two signature sequences used by the user equipment to send the at least two transmit sequences, and separately detects a corresponding transmit sequence based on each signature sequence, to obtain the at least two data packets. The user equipment can transmit a plurality of data packets on a same time-frequency resource in a same slot.Type: ApplicationFiled: July 18, 2019Publication date: November 7, 2019Inventors: Meng CHENG, Xiuqiang XU, Yiqun WU, Yan CHEN
-
Publication number: 20190215222Abstract: A data transmission method and apparatus are provided. The method includes: modulating, based on a codebook, every N information bits of to-be-transmitted data into one M-dimensional modulation symbol, where the codebook is generated based on an M-dimensional modulation constellation, the M-dimensional modulation constellation includes M modulation constellations, a constellation point in an mth modulation constellation in the M modulation constellations is obtained by mapping N information bits based on an mth information bit subset, the mth information bit subset includes information bits on some locations in the N information bits, and a union set of M information bit subsets respectively corresponding to the M modulation constellations is the N information bits, where M and N are integers greater than or equal to 2, and m is 1, 2, . . . , or M; and sending the generated M-dimensional modulation symbol. The technical solutions can reduce complexity when a modulation signal is demodulated.Type: ApplicationFiled: March 18, 2019Publication date: July 11, 2019Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Meng CHENG, Yiqun WU, Yan CHEN
-
Publication number: 20190173711Abstract: Embodiments of the present invention provide a resource mapping method. The method includes: obtaining a modulation symbol generated based on M code words, where M is a positive integer greater than or equal to 1; mapping the modulation symbol generated based on the M code words to a time-frequency resource in one or more mapping patterns, where the mapping pattern is a pattern of mapping every Q modulation symbols to one mapping unit, the mapping unit includes F resource units, F is a positive integer greater than or equal to 1, Q is a positive integer meeting 1?Q?F, the mapping pattern includes a sparse mapping pattern, and the sparse mapping pattern is a mapping pattern meeting F?2 and 1?Q<F; and sending the mapped modulation symbol generated based on the M code words.Type: ApplicationFiled: January 18, 2019Publication date: June 6, 2019Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Meng CHENG, Yiqun WU, Lei WANG, Xiuqiang XU, Yan CHEN
-
Publication number: 20190132076Abstract: The present disclosure discloses a data processing method, a network device, and a terminal. In this method, a transmit end combines basic modulation symbols obtained after basic modulation is performed on all layers of data, to obtain a combined symbol vector X. The transmit end maps the symbol vector X to Q resource elements to obtain a data vector S. A symbol quantity of the symbol vector X is greater than a symbol quantity of the data vector S. The symbol quantity of the data vector S is Q. Q is a positive integer. Therefore, non-orthogonal spreading and superposition transmission of a plurality of terminals can be implemented in both uplink and downlink, thereby effectively improving transmission efficiency.Type: ApplicationFiled: December 13, 2018Publication date: May 2, 2019Inventors: MENG CHENG, Yiqun WU, Yan CHEN
-
Publication number: 20180186133Abstract: An adhesive composition is provided. The adhesive composition includes an organic silicon polymer, a silicon coupling agent, carboxylic polyester, and a solvent. Based on the total weight of the adhesive composition, the content of the organic silicon polymer is 10 wt % to 60 wt %, the content of the silicon coupling agent is 10 wt % to 60 wt %, and the content of the carboxylic polyester is 10 wt % to 60 wt %.Type: ApplicationFiled: March 3, 2017Publication date: July 5, 2018Applicant: TAIFLEX Scientific Co., Ltd.Inventors: Hsiu-Chu Wu, Meng-Cheng Tsai, Chung-Hsiao Lai