Patents by Inventor Meng Kang
Meng Kang 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: 20220328831Abstract: A secondary battery, a preparation method thereof, and an apparatus including the secondary battery are described.Type: ApplicationFiled: June 29, 2022Publication date: October 13, 2022Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Erling LI, Meng KANG, Baida DENG, Libing HE
-
Patent number: 11469409Abstract: The present invention provides a negative electrode plate and a battery. The negative electrode plate comprises a negative current collector and a negative film that is provided on at least one surface of the negative current collector and comprises a negative active material. The negative film meets the follow relations: 6.0?PD×Dv50?32.0 and 0.2?PD/Dn10?12.0. The negative electrode plate of the present invention has excellent dynamic performance, and the battery of the present invention has both excellent dynamic performance and long cycle life.Type: GrantFiled: April 15, 2021Date of Patent: October 11, 2022Assignee: Contemporary Amperex Technology Co., LimitedInventors: Jiazheng Wang, Yuliang Shen, Meng Kang, Libing He, Baojian Zhu, Lei Chen
-
Patent number: 11469418Abstract: The present application provides a negative electrode sheet and a battery. The negative electrode sheet includes a negative current collector and a negative electrode film provided on at least one surface of the negative current collector and including a negative active material, and the negative electrode film satisfies: 4?P×[(30?Dv50)/2+2×(10?M)]?20. P represents a porosity of the negative electrode film; Dv50 represents a volume median particle diameter of the negative active material, and a unit is ?m; M represents a capacity per unit area of a negative electrode film, and a unit is mAh/cm2. The negative electrode sheet of the present application has the characteristics of excellent dynamics performance, and the battery of the present application also has the characteristics of excellent dynamics performance, long cycle life and high energy density at the same time.Type: GrantFiled: October 15, 2019Date of Patent: October 11, 2022Assignee: Contemporary Amperex Technology Co., LimitedInventors: Jiazheng Wang, Meng Kang, Yuliang Shen, Libing He
-
Patent number: 11449686Abstract: Systems, devices, and methods are provided for using an automated assessment and evaluation of machine translations. A system may receive a request associated with translating first content from a first language to a second language. The system may translate the first content from the first language to the second language. The system may determine an attribute associated with the first content. The system may determine a translation score associated with second content translated from the first language to the second language and associated with the attribute, the translation score indicative of a machine translation accuracy. The system may determine, and based on the translation score, a translation protocol, and may execute the translation protocol.Type: GrantFiled: July 9, 2019Date of Patent: September 20, 2022Assignee: Amazon Technologies, Inc.Inventors: Brinda Panchal, Abhinav Agarwal, Sandy Barnabas, You Ling, Pavel Fomitchov, Nagaraja Vasudevamurthy, Kaivan Wadia, Emmanuel Addy Lamptey, Meng Kang
-
Publication number: 20220123287Abstract: The present application relates to a secondary battery, a process for preparing the same and an apparatus containing the secondary battery.Type: ApplicationFiled: December 31, 2021Publication date: April 21, 2022Applicant: Contemporay Amperex Technology Co., LimitedInventors: Jiazheng Wang, Meng Kang, Xiaobin Dong, Yuliang Shen, Libing He
-
Publication number: 20220123306Abstract: This application relates to a secondary battery, a process for preparing the same and an apparatus containing the secondary battery. In particular, the negative electrode plate comprises a negative current collector and a negative electrode film, wherein the negative electrode film comprises a first negative electrode film and a second negative electrode film, the first negative electrode film is disposed on at least one surface of the negative current collector and comprises a first negative electrode active material, the first negative electrode active material comprises graphite, and the particle size uniformity of the first negative electrode active material is from 0.4 to 0.6; the second negative electrode film is disposed on the first negative electrode film and comprises a second negative electrode active material, the second negative electrode active material comprises artificial graphite, and the particle size uniformity of the second negative electrode active material is from 0.25 to 0.45.Type: ApplicationFiled: December 31, 2021Publication date: April 21, 2022Applicant: Contemporary Amperex Technology Co., LimitedInventors: Meng KANG, Jiazheng Wang, Xiaobin Dong, Libing He
-
Patent number: 11296321Abstract: The present disclosure provides a negative electrode plate and a battery, the negative electrode plate comprises a negative current collector and a negative film, the negative film is provided on at least one surface of the negative current collector and comprises a negative active material, the negative active material comprises graphite, and the negative electrode plate satisfies a relationship: 0.27?P×1.1/G+2/VOI?1.3, P represents a porosity of the negative film, G represents a graphitization degree of the negative active material, VOI represents an OI value of the negative film. The battery of the present disclosure can have the characteristics of long cycle life, high energy density and excellent dynamics performance at the same time.Type: GrantFiled: April 26, 2019Date of Patent: April 5, 2022Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Yuliang Shen, Meng Kang, Tianquan Peng, Jiazheng Wang, Libing He
-
Patent number: 11296320Abstract: The present disclosure provides a secondary battery, the secondary battery comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte, the positive electrode plate comprises a positive current collector and a positive film, the positive film is provided on at least one surface of the positive current collector and comprises a positive active material, the negative electrode plate comprises a negative current collector and a negative film, the negative film is provided on at least one surface of the negative current collector and comprises a negative active material, the negative active material comprises graphite, and an average particle diameter of the positive active material represented by D50 and a thickness of the negative film represented by Hn satisfy a relationship: 6?0.06Hn×(4?1/D50)?31. The battery of the present disclosure has the characteristics of excellent dynamics performance and long cycle life at the same time.Type: GrantFiled: April 26, 2019Date of Patent: April 5, 2022Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Tianquan Peng, Yuliang Shen, Meng Kang, Jiazheng Wang, Libing He
-
Publication number: 20220102701Abstract: The present application relates to a secondary battery, a process for preparing the same and an apparatus containing the secondary battery.Type: ApplicationFiled: December 10, 2021Publication date: March 31, 2022Applicant: Contemporary Amperex Technology Co., LimitedInventors: Meng KANG, Jiazheng Wang, Xiaobin Dong, Libing He
-
Publication number: 20220102788Abstract: This application discloses a secondary battery and an apparatus containing the secondary battery. The secondary battery secondary battery includes an electrode assembly including a cell and tabs extending from the cell, the cell includes a negative electrode plate, the negative electrode plate includes a negative current collector and a negative electrode film arranged on at least one surfaces of the negative current collector and including a negative active material, wherein the negative active material includes artificial graphite including secondary particles; and the cell satisfies 5 cm?0.5×?{square root over (a2+b2)}?15 cm, and a?15 cm, wherein a is the maximum size of the cell in the direction that the tabs extend, in cm; and b is the maximum size of the cell in a direction perpendicularly intersecting with the direction that the tabs extend, in cm.Type: ApplicationFiled: December 8, 2021Publication date: March 31, 2022Applicant: Contemporary Amperex Technology Co., LimitedInventors: Xiaobin Dong, Jiazheng Wang, Meng Kang, Libing He
-
Publication number: 20220102711Abstract: The present application discloses a negative electrode active material and a method for preparing the same, a secondary battery, and an apparatus including the secondary battery. The negative electrode active material includes a core and a coating layer covering the surface of the core, the core includes artificial graphite, the coating layer includes amorphous carbon, and the particle size uniformity of the negative electrode active material is from 0.25 to 0.45.Type: ApplicationFiled: December 10, 2021Publication date: March 31, 2022Applicant: Contemporary Amperex Technology Co., LimitedInventors: Meng KANG, Xiaobin DONG, Jiazheng WANG, Libing HE
-
Negative electrode plate, testing method of active specific surface area of electrode plate, battery
Patent number: 11283061Abstract: The present disclosure provides a battery and a testing method of an active specific surface area of an electrode plate. The battery comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte, the negative electrode plate comprises a negative current collector and a negative film, the negative film is provided on at least one surface of the negative current collector and comprises a negative active material, the negative active material comprises graphite, and an active specific surface area of the negative electrode plate is 1 cm2/g˜15 cm2/g. In the present disclosure, by reasonably controlling the active specific surface area of the negative electrode plate can make the battery have the characteristics of high energy density and excellent dynamics performance at the same time.Type: GrantFiled: May 24, 2019Date of Patent: March 22, 2022Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Yuliang Shen, Meng Kang, Jiazheng Wang, Libing He, Qiqi Zuo -
Publication number: 20220059864Abstract: The present application relates to a negative electrode plate and a secondary battery. Specifically, the present application provides a negative electrode plate comprising a negative electrode current collector and an negative electrode film coated on at least one surface of the negative electrode current collector and containing the negative active material, wherein the negative electrode plate satisfies 0.6?0.7×P×(D90?D10)/D50+B/3?8.0, wherein P refers to the porosity of the negative electrode film; B refers to the active specific surface area of the negative electrode film, and the unit thereof is m2/g; D10 refers to the particle size corresponding to the cumulative volume percentage of the negative active material reaching 10%, D90 refers to the particle size corresponding to the cumulative volume percentage of the negative active material reaching 90%, and D50 refers to the particle size corresponding to the cumulative volume percentage of the negative active material reaching 50%.Type: ApplicationFiled: November 5, 2021Publication date: February 24, 2022Applicant: Contemporary Amperex Technology Co., LimitedInventors: Yuliang SHEN, Meng KANG, Jiazheng WANG, Libing HE
-
Patent number: 11237215Abstract: The present application provides a method for determining fast charge performance of a negative electrode plate and a method for designing a negative electrode plate. By utilizing the method(s) according to the present application, the charging speed of a negative electrode plate can be quickly evaluated and the design period of a negative electrode plate in a fast charge battery can be greatly shortened.Type: GrantFiled: March 11, 2020Date of Patent: February 1, 2022Assignee: Contemporary Amperex Technology Co., LimitedInventors: Jiazheng Wang, Meng Kang, Xiaobin Dong, Yuliang Shen, Libing He
-
Publication number: 20210405841Abstract: A display module, an electronic device, and an electronic device control method relate to the field of display technologies. A pressure sensor is integrated into a layered structure of the display module. The display module includes an active area and an inactive area. The inactive area includes the pressure sensor. The pressure sensor includes one or more pressure sensitive resistors, at least one pressure sensitive resistor is disposed at a same layer as a semiconductor active layer of the active area, and the at least one pressure sensitive resistor is made of a same material as the semiconductor active layer.Type: ApplicationFiled: August 16, 2021Publication date: December 30, 2021Inventors: Zhiwei Zheng, Yisuei Liao, Wei Bai, Meng Kang
-
Patent number: 11177477Abstract: The present disclosure provides a negative electrode plate and a battery, the negative electrode plate comprises a negative current collector and a negative film, the negative film is provided on at least one surface of the negative current collector and comprises a negative active material. The negative active material comprises graphite, and an OI value of the negative film represented by VOI and a pressing density of the negative film represented by PD satisfy a relationship: 0.7?(80/VOI+43/PD)×PD/VOI?21.5, where a unit of the pressing density of the negative film represented by PD is g/cm3. The battery of the present disclosure can have the characteristics of fast charging speed, high energy density, good safety performance and long cycle life at the same time.Type: GrantFiled: April 19, 2019Date of Patent: November 16, 2021Assignee: CON TEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Meng Kang, Tianquan Peng, Yuliang Shen, Libing He
-
Publication number: 20210336244Abstract: This application relates to a secondary battery and an apparatus including the secondary battery. Specifically, the secondary battery of this application includes a negative electrode plate, where the negative electrode plate includes a negative current collector and negative film layers where the negative film layers include a first negative film layer and a second negative film layer, the first negative film layer is disposed on at least one surface of the negative current collector and includes a first negative active material, and the second negative film layer is disposed on the first negative film layer and includes a second negative active material; the first negative active material includes natural graphite, and the second negative active material includes artificial graphite; the first negative active material satisties 4.0?COI1?7.0; and the second negative active material satisties 2.2?COI2?4.2.Type: ApplicationFiled: December 6, 2019Publication date: October 28, 2021Applicant: Contemporary Amperex Technology Co., LimitedInventors: Meng KANG, Xiaobin DONG, Jiazheng WANG, Libing HE
-
Patent number: 11133494Abstract: The disclosure relates to a secondary battery comprising a negative electrode plate the same. Specifically, the present disclosure provides secondary battery, comprising a negative electrode plate, the negative electrode plate comprises a negative electrode current collector and a negative electrode layer coated on at least one surface of the negative electrode current collector, the negative electrode layer comprising a negative electrode active material, wherein the negative electrode active material comprises a graphite material, and the negative electrode layer fulfills the condition: 0.75?7.8/D50+1.9*D50/(VOI)2?2.0, wherein D50 represents a volume distribution average particle diameter of particles of the negative electrode active material in micron; VOI represents the OI value of the negative electrode layer. The secondary battery has the combination of high energy density, fast charge, and long cycle life.Type: GrantFiled: May 15, 2020Date of Patent: September 28, 2021Assignee: Contemporary Amperex Technology Co., LimitedInventors: Meng Kang, Tianquan Peng, Yuliang Shen, Jiazheng Wang, Libing He
-
Patent number: 11114659Abstract: The present application provides a negative electrode sheet and a secondary battery. The negative electrode sheet includes a negative current collector and a negative electrode film provided on at least one surface of the negative current collector and comprising a negative active substance. The negative electrode sheet also satisfies: 0.3?a×(1.1/b+0.02×c)?6.0, where a represents the specific surface area of the negative electrode film, and the unit is m2/g; b represents the compaction density of the negative electrode film, and the unit is g/cm3; c represents the cohesive force between the negative electrode film and the negative current collector, and the unit is N/m. The present application can make the negative electrode sheet have excellent dynamics performance, and meanwhile ensure that the secondary battery has good dynamics performance and cycle performance without sacrificing energy density.Type: GrantFiled: October 14, 2019Date of Patent: September 7, 2021Assignee: Contemporary Amperex Technology Co., LimitedInventors: Meng Kang, Yuliang Shen, Jiazheng Wang, Libing He
-
Publication number: 20210249650Abstract: The present application provides a negative electrode sheet and a secondary battery. The negative electrode sheet includes a negative current collector and a negative electrode film provided on at least one surface of the negative current collector and comprising a negative active substance. The negative electrode sheet also satisfies: 0.3?a×(1.1/b+0.02×c)?6.0, where a represents the specific surface area of the negative electrode film, and the unit is m2/g; b represents the compaction density of the negative electrode film, and the unit is g/cm3; c represents the cohesive force between the negative electrode film and the negative current collector, and the unit is N/m. The present application can make the negative electrode sheet have excellent dynamics performance, and meanwhile ensure that the secondary battery has good dynamics performance and cycle performance without sacrificing energy density.Type: ApplicationFiled: October 14, 2019Publication date: August 12, 2021Applicant: Contemporary Amperex Technology Co., LimitedInventors: Meng KANG, Yuliang SHEN, Jiazheng WANG, Libing HE