Patents by Inventor Shaocong Ouyang
Shaocong Ouyang 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: 20250132322Abstract: A secondary battery is described. The secondary battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution. The positive electrode plate includes a positive current collector and a positive electrode film layer disposed on at least one surface of the positive current collector. The positive electrode film layer includes a positive active material. The positive active material includes: S1) a lithium-containing compound of an olivine structure, and S2) a vanadium oxide represented by a general formula j(M2O) ·kVOx, where M is one or more of alkali metals, 0?j?1, 1?k?5, 1?x?2.5, a difference of a discharge platform voltage between S1 and S2 is E, and 0.2 V?E?2.8 V.Type: ApplicationFiled: December 24, 2024Publication date: April 24, 2025Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITEDInventors: Changfeng BIE, Chang ZHU, Hongyu LIU, Miaomiao DONG, Shaocong OUYANG, Huan NI
-
Publication number: 20240363858Abstract: The present application provides a secondary battery, a battery module, a battery pack, and an electrical device. The secondary battery includes a positive electrode plate, a negative electrode plate, and a separator disposed between the positive electrode plate and the negative electrode plate, in which the positive electrode plate comprises a positive electrode coating containing a positive electrode active material comprising a lithium iron phosphate material and a conjugated carbonyl compound. In a discharge process of the secondary battery, in addition to a discharge plateau of the lithium iron phosphate material, a discharge curve further includes a relatively low discharge plateau provided by the conjugated carbonyl compound.Type: ApplicationFiled: July 9, 2024Publication date: October 31, 2024Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Miaomiao DONG, Shaocong OUYANG, Changfeng BIE, Hongyu LIU, Huan NI, Chenghua FU, Xin SUN
-
Patent number: 12132197Abstract: A battery pack may include a battery pack case and battery cells accommodated in the battery pack case; the inner space of the battery pack case may include a first area, a second area, a third area, and a fourth area; a first battery cell may be provided in the first area, a second battery cell may be provided in the second area, a third battery cell may be provided in the third area, and a fourth battery cell may be provided in the fourth area; and the first battery cell, the second battery cell, the third battery cell, and the fourth battery cell each have a first discharge voltage plateau and a second discharge voltage plateau, and an average discharge voltage in the first discharge voltage plateau may be higher than an average discharge voltage in the second discharge voltage plateau.Type: GrantFiled: October 19, 2022Date of Patent: October 29, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITEDInventors: Baoyun Xu, Shaocong Ouyang, Chenghua Fu
-
Publication number: 20240332632Abstract: A battery pack may include a first battery cell type and a second battery cell type, wherein the first battery cell type may include n first battery cells, and the second battery cell type may include m second battery cells, with n and m being each independently selected from an integer of 1 or more, wherein the second battery cell may have a discharge power at ?20° C. greater than that of the first battery cell, the difference in discharge power at ?20° C. between the second battery cells and the first battery cells being ?10 W; the percentage by number of the first battery cells in the battery cells comprised in area A may be 20% to 100%, and the percentage by number of the second battery cells in the battery cells comprised in the area B may be 5% to 100%.Type: ApplicationFiled: June 7, 2024Publication date: October 3, 2024Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Shaocong OUYANG, Chenghua FU, Baoyun XU, Miaomiao DONG, Yonghuang YE
-
Patent number: 12095051Abstract: A battery pack includes a first battery cell, a second battery cell, and a third battery cell. A positive electrode active substance of each battery cell is composed of lithium iron phosphate and a low-temperature additive. The low-temperature additive is selected from compounds containing at least two carbonyl groups, which are conjugated with an unsaturated structure or an atom having lone-pair electrons connected with the carbonyl groups, and a discharging cut-off voltage of the battery pack at a low temperature has the following rules: discharging cut-off voltages V1, V2, and V3 of the first battery cell, second battery cell, and third battery cell range from 1.95V to 2.1V, from 1.8 V to 2.0V, from 1.6V to 1.9V, respectively, and V1, V2, and V3 satisfy a relationship of V1>V2>V3.Type: GrantFiled: October 27, 2023Date of Patent: September 17, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Miaomiao Dong, Shaocong Ouyang, Huan Ni, Hongyu Liu, Changfeng Bie, Xin Sun, Chenghua Fu
-
Publication number: 20240290944Abstract: Provided is a battery pack. The battery pack includes a first battery cell, a second battery cell, and a third battery cell. A positive electrode active substance of each battery cell is composed of lithium iron phosphate and a low-temperature additive. The low-temperature additive is selected from compounds containing at least two carbonyl groups, which are conjugated with an unsaturated structure or an atom having lone-pair electrons connected with the carbonyl groups. At a temperature lower than or equal to 10° C., a ratio of a discharging capacity of a single cell of the second battery cell to a discharging capacity of a single cell of the first battery cell ranges from 1.003 to 1.12, and a ratio of a discharging capacity of a single cell of the third battery cell to a discharging capacity of a single cell of the second battery cell ranges from 1.005 to 1.15.Type: ApplicationFiled: April 28, 2024Publication date: August 29, 2024Inventors: Miaomiao Dong, Changfeng Bie, Shaocong Ouyang, Huan Ni, Hongyu Liu, Xin Sun, Chenghua Fu
-
Publication number: 20240250320Abstract: This application provides a discharge method and discharge apparatus for battery, able to improve the discharge capability of batteries in low-temperature environments. The discharge method includes: obtaining a temperature of a battery; and determining, when the temperature of the battery is lower than a preset temperature threshold, to discharge the battery based on a first discharge current until the battery meets a preset condition, and then determining to discharge the battery based on a second discharge current, where the first discharge current is used for heating the battery during discharging, and the first discharge current is greater than the second discharge current.Type: ApplicationFiled: February 1, 2024Publication date: July 25, 2024Applicant: CONTEMPORATY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Chenghua FU, Shaocong Ouyang, Baoyun Xu, Xiaojian Huang, Yunmei Lin, Yonghuang Ye
-
Patent number: 12046719Abstract: A battery pack may include a first battery cell type and a second battery cell type, wherein the first battery cell type may include n first battery cells, and the second battery cell type may include m second battery cells, with n and m being each independently selected from an integer of 1 or more, wherein the second battery cell may have a discharge power at ?20° C. greater than that of the first battery cell, the difference in discharge power at ?20° C. between the second battery cells and the first battery cells being ?10 W; the percentage by number of the first battery cells in the battery cells comprised in area A may be 20% to 100%, and the percentage by number of the second battery cells in the battery cells comprised in the area B may be 5% to 100%.Type: GrantFiled: March 8, 2023Date of Patent: July 23, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Shaocong Ouyang, Chenghua Fu, Baoyun Xu, Miaomiao Dong, Yonghuang Ye
-
Patent number: 12021232Abstract: The present disclosure provides a lithium manganate positive electrode active material, comprising a lithium manganate matrix and a cladding layer, where the cladding layer comprises an organic bonding material, one or more A-type salts, and one or more B-type salts. The lithium manganate positive electrode active material of the present disclosure significantly reduces the content of transition metal manganese ions within a battery through combined action of the organic bonding material, the A-type salts, and the B-type salts, thereby slowing down the decomposition and consumption of the SEI film (solid electrolyte interphase) by transition metal manganese, and improving the capacity retention rate and impedance performance of the battery.Type: GrantFiled: August 24, 2022Date of Patent: June 25, 2024Assignee: Contemporary Amperex Technology Co., LimitedInventors: Shaocong Ouyang, Chenghua Fu, Tingzhen Xie, Dong Pan, Yonghuang Ye
-
Patent number: 12002960Abstract: A battery pack and an electric device including the battery pack. The battery pack includes a battery pack container and first, second and third battery cells accommodated in different regions of the battery pack container, the first, second and third battery cells each has a first and a second discharge voltage plateau, an average discharge voltage of the first discharge voltage plateau is higher than an average discharge voltage of the second discharge voltage plateau, and the first, second and third battery cells have different proportions of the discharge capacity corresponding to the second discharge voltage plateau.Type: GrantFiled: October 25, 2023Date of Patent: June 4, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Chang Zhu, Shaocong Ouyang, Baoyun Xu, Tingzhen Xie
-
Publication number: 20240106060Abstract: A battery pack includes a battery pack box with an internal space including a first region to an n-th region, each provided with a battery cell. A positive electrode active substance in a positive electrode of each k-th battery cell includes lithium iron phosphate and/or lithium nickel cobalt manganate having a first discharge voltage plateau and one or more types of supplementary active substances having a second discharge voltage plateau. For the first battery cell to the n-th battery cell, in any case where a sum of a discharge capacity corresponding to the first discharge voltage plateau and a discharge capacity corresponding to the second discharge voltage plateau is 100%, a discharge capacity proportion corresponding to the second discharge voltage plateau of the k-th battery cell is greater than a discharge capacity proportion corresponding to the second discharge voltage plateau of the (k?1)-th battery cell.Type: ApplicationFiled: November 7, 2023Publication date: March 28, 2024Inventors: Miaomiao DONG, Hongyu LIU, Changfeng BIE, Shaocong OUYANG, Huan NI, Chenghua FU, Xin SUN
-
Publication number: 20240088460Abstract: A battery pack includes a first battery cell, a second battery cell, and a third battery cell. A positive electrode active substance of each battery cell is composed of lithium iron phosphate and a low-temperature additive. The low-temperature additive is selected from compounds containing at least two carbonyl groups, which are conjugated with an unsaturated structure or an atom having lone-pair electrons connected with the carbonyl groups, and a discharging cut-off voltage of the battery pack at a low temperature has the following rules: discharging cut-off voltages V1, V2, and V3 of the first battery cell, second battery cell, and third battery cell range from 1.95V to 2.1V, from 1.8 V to 2.0V, from 1.6V to 1.9V, respectively, and V1, V2, and V3 satisfy a relationship of V1>V2>V3.Type: ApplicationFiled: October 27, 2023Publication date: March 14, 2024Inventors: Miaomiao DONG, Shaocong OUYANG, Huan NI, Hongyu LIU, Changfeng BIE, Xin SUN, Chenghua FU
-
Patent number: 11929499Abstract: A lithium manganate positive electrode active material, comprising a lithium manganate matrix and a cladding layer as a “barrier layer” and a “functional layer” are described. The cladding layer can not only “prevent” the transition metal ions which have been produced by the lithium manganate matrix from directly “running” into the electrolyte solution, but also “prevent” the hydrofluoric acid in the electrolyte solution from directly contacting with the lithium manganate substrate, and then prevent the lithium manganate matrix from dissolving out more transition metal manganese ions; as a “functional layer”, the cladding layer contains various effective ingredients inside, which can reduce the transition metal manganese ions already present inside the battery through chemical reactions or adsorption effects, thus slowing down the generation of transition metal manganese and the decomposition of the SEI film (solid electrolyte interphase film) catalyzed by the transition metal manganese.Type: GrantFiled: July 14, 2022Date of Patent: March 12, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Shaocong Ouyang, Chenghua Fu, Tingzhen Xie, Bo Wang
-
Publication number: 20240055610Abstract: A battery pack and an electric device including the battery pack. The battery pack includes a battery pack container and first, second and third battery cells accommodated in different regions of the battery pack container, the first, second and third battery cells each has a first and a second discharge voltage plateau, an average discharge voltage of the first discharge voltage plateau is higher than an average discharge voltage of the second discharge voltage plateau, and the first, second and third battery cells have different proportions of the discharge capacity corresponding to the second discharge voltage plateau.Type: ApplicationFiled: October 25, 2023Publication date: February 15, 2024Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Chang ZHU, Shaocong OUYANG, Baoyun XU, Tingzhen XIE
-
Patent number: 11901575Abstract: Provided are a battery pack and a power consuming device. The battery pack includes a battery pack case and a plurality of battery cells accommodated in the battery pack case. An inner space of the battery pack case may be divided into a first region located at the center and a second region enclosing the first region. The plurality of battery cells include: at least one first battery cell disposed in the first region; and at least one second battery cell disposed in the second region. An internal resistance of the first battery cell and an internal resistance of the second battery cell increase with the decrease of a temperature.Type: GrantFiled: September 12, 2023Date of Patent: February 13, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Tingzhen Xie, Shaocong Ouyang, Chenghua Fu, Baoyun Xu, Yunmei Lin
-
Publication number: 20230420785Abstract: Provided are a battery pack and a power consuming device. The battery pack includes a battery pack case and a plurality of battery cells accommodated in the battery pack case. An inner space of the battery pack case may be divided into a first region located at the center and a second region enclosing the first region. The plurality of battery cells include: at least one first battery cell disposed in the first region; and at least one second battery cell disposed in the second region. An internal resistance of the first battery cell and an internal resistance of the second battery cell increase with the decrease of a temperature.Type: ApplicationFiled: September 12, 2023Publication date: December 28, 2023Inventors: Tingzhen Xie, Shaocong Ouyang, Chenghua Fu, Baoyun Xu, Yunmei Lin
-
Publication number: 20230378799Abstract: A charge method includes obtaining a temperature of a battery, and in response to the temperature of the battery being lower than a preset temperature threshold, determining to use a first charge current to charge the battery until the battery meets a preset condition, and then determining to use a second charge current to charge the battery. The first charge current is used for heating the battery during charging, and the first charge current is greater than the second charge current.Type: ApplicationFiled: July 31, 2023Publication date: November 23, 2023Inventors: Chenghua FU, Shaocong OUYANG, Baoyun XU, Xiaojian HUANG, Yonghuang YE, Wenjian MA
-
Patent number: 11811057Abstract: A positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer coated on at least one surface of the positive electrode current collector. The positive electrode active material layer includes an inner active material layer and an outer active material layer successively stacked. The inner active material layer has a three-level pore size distribution: an inner primary pore size distribution from 3 nm to 10 nm, an inner secondary pore size distribution from 10 nm to 100 nm, and an inner tertiary pore size distribution from 0.1 ?m to 2 ?m. The outer active material layer has a three-level pore size distribution: an outer primary pore size distribution from 0.5 nm to 3 nm, an outer secondary pore size distribution from 10 nm to 100 nm, and an outer tertiary pore size distribution from 0.1 ?m to 2 ?m.Type: GrantFiled: June 8, 2023Date of Patent: November 7, 2023Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Baoyun Xu, Shaocong Ouyang, Chenghua Fu
-
Patent number: 11811054Abstract: A battery pack may include a battery pack case and battery cells accommodated in the battery pack case, where an inner space of the battery pack case may include a first area and a second area, a first battery cell may be provided in the first area, second battery cells may be provided in the second area, and the second battery cells may be arranged around the first battery cell; the first battery cell and the second battery cells each may have a first discharge voltage plateau and a second discharge voltage plateau, and an average discharge voltage in the first discharge voltage plateau may be higher than an average discharge voltage in the second discharge voltage plateau.Type: GrantFiled: October 19, 2022Date of Patent: November 7, 2023Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Baoyun Xu, Shaocong Ouyang, Chenghua Fu
-
Publication number: 20230327100Abstract: A single-crystalline-structured low-cobalt ternary positive material, a chemical formula thereof is Li1+x(NiaCobMnc)1-dMdO2-yAy, where a mole fraction of Co element is low. 0.05 ? b ? 0.14; and in a single particle, a ratio of an average Co content per unit area of an outer layer to an average Co content per unit area of an inner core in a cross section passing through a geometric center of the particle is in a range 1.2-5.0:1, optionally, in a range 1.4-2.0:1 is disclosed. The material has better structural stability and dynamic performance at low temperature and high voltage, which improves cycle performance and power performance of the secondary battery at low temperature and high voltage.Type: ApplicationFiled: May 26, 2023Publication date: October 12, 2023Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Huan NI, Changfeng BIE, Xiang YIN, Shaocong OUYANG, Miaomiao DONG, Na LIU