Patents by Inventor Fenggang Zhao

Fenggang Zhao 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: 20220246975
    Abstract: The disclosure relates to a battery module and the technical field of energy storage. The battery module comprises: a frame having an accommodation space; and a plurality of batteries successively arranged in the accommodation space in a thickness direction of the battery, wherein a partition is arranged between adjacent batteries, wherein the partition has a compressibility and a coefficient of compressibility ?1 at a pressure equal to or smaller than 2 MPa, which meets a relation C0×?1?A0×0.2, wherein C0 is an initial thickness of the partition, and A0 is an initial thickness of the battery.
    Type: Application
    Filed: December 1, 2021
    Publication date: August 4, 2022
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Fenggang Zhao, Junda Tu, Xiaobo Chen, Dan Shen, Xuehui Wang
  • Patent number: 11335979
    Abstract: The present disclosure provides a secondary battery which comprises a cap plate, an electrode assembly and a first protecting piece. The cap plate comprises a first electrode terminal. The electrode assembly comprises a main body and a first electrode tab. The first electrode tab is electrically connected with the first electrode terminal. The first electrode tab includes a first connecting portion and a first bending portion, the first connecting portion is electrically connected with the first electrode terminal, and the first bending portion connects the main body and the first connecting portion. The first protecting piece is fixed to a bottom of the first connecting portion. The first protecting piece includes a main portion and a first curve portion, the first curve portion is connected with the main portion and is curved relative to the main portion. The first bending portion is bent downwardly along the first curve portion.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: May 17, 2022
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Yulian Zheng, Chengyou Xing, Peng Wang, Taosheng Zhu, Fenggang Zhao
  • Publication number: 20220118860
    Abstract: Embodiments of the present application provide a case for a battery, a battery, a power consumption device, and a method and device for producing a battery. The case includes: a thermal management component configured to adjust temperature of a battery cell accommodated in the case; a first wall provided with a through hole, the through hole being configured to communicate a gas inside and outside the case; and a heat conducting component attached to the thermal management component and the first wall, the heat conducting component being configured to conduct heat of the thermal management component to the first wall, so that the first wall condenses a gas flowing from the outside of the case to the inside of the case through the through hole. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.
    Type: Application
    Filed: December 27, 2020
    Publication date: April 21, 2022
    Inventors: Fenggang ZHAO, Zhanyu SUN, Xiaoteng HUANG, Jiarong HONG, Haiqi YANG, Wenli WANG, Langchao HU
  • Publication number: 20220123417
    Abstract: The present application relates to the field of an energy storage device, and more particularly, to a top cover assembly of a secondary battery, the secondary battery and an apparatus using a battery. The top cover assembly includes: a top cover sheet provided with an explosion-proof hole; an explosion-proof sheet, a position of the explosion-proof sheet corresponding to the explosion hole; and a fixing member, at least part of the fixing member being located between the top cover sheet and the explosion-proof sheet and connecting the top cover sheet and the explosion-proof sheet; where one of the explosion-proof hole and the fixing member is provided with a protrusion and the other is provided with a first groove, and the protrusion and the first groove are fixed.
    Type: Application
    Filed: December 28, 2021
    Publication date: April 21, 2022
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Siying HUANG, Quankun LI, Shiyao ZHANG, Jinmei XU, Fenggang ZHAO, Peng WANG
  • Publication number: 20220123390
    Abstract: Embodiments of the present application provide a case for a battery, a battery, a power consumption device, and a method and device for producing a battery. The case includes: a thermal management component configured to adjust temperature of a battery cell accommodated in the case; a first wall provided with a through hole, the through hole being configured to communicate a gas inside and outside the case; and a condensing component attached to the thermal management component, the condensing component being configured to shield the through hole so as to condense a gas flowing into the inside of the case through the through hole. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.
    Type: Application
    Filed: December 27, 2020
    Publication date: April 21, 2022
    Inventors: Fenggang ZHAO, Jiarong HONG, Xiaoteng HUANG, Wenli WANG, Cheng XUE, Haiqi YANG, Langchao HU
  • Patent number: 11296385
    Abstract: The embodiments of the present disclosure provide a battery module and a battery pack. A battery module includes: a cooling component; and a battery group, comprising secondary batteries disposed side by side in a first direction and each including a case having an accommodating hole, an electrode assembly disposed in the accommodating hole, and a cap assembly, the electrode assembly including two end faces disposed opposite to each other in a second direction intersecting the first direction and an electrode tab extending from each end face. The secondary batteries each includes two sides opposite to each other in the second direction, the cooling component is disposed on at least one of the two sides, the cooling component and the end face are respectively disposed on two sides of the case in the second direction, and the cooling component is connected and fixed to each of the secondary batteries.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: April 5, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Haizu Jin, Linggang Zhou, Peng Wang, Dongyang Shi, Xingdi Chen, Fei Hu, Fenggang Zhao, Yanhuo Xiang, Yongshou Lin
  • Publication number: 20220069284
    Abstract: An electrode assembly and a lithium-ion battery are described. The electrode assembly includes a positive electrode plate, a separator, and a negative electrode plate, where the negative electrode plate includes a negative electrode current collector and a negative electrode active substance layer, the negative electrode plate further includes a lithium metal layer, the lithium metal layer is formed by a plurality of regular or irregular strip-shaped lithium-rich regions, and the plurality of lithium-rich regions present a discontinuous pattern of spaced distribution in a length direction of the negative electrode plate. The electrode assembly further satisfies that: negative electrode capacity per unit area/positive electrode capacity per unit area=1.2 to 2.1 and negative electrode capacity per unit area/(positive electrode capacity per unit area+capacity of the lithium metal layer on the surface of the negative electrode active substance layer per unit area×80%)?1.10.
    Type: Application
    Filed: February 26, 2019
    Publication date: March 3, 2022
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Longfei YANG, Guobao WANG, Xiaomei LIU, Jiang LIU, Yongshou LIN, Fenggang ZHAO
  • Patent number: 11264610
    Abstract: This application relates to a battery comprising a positive electrode plate, a separator, and a negative electrode plate, wherein the positive electrode plate comprises a positive electrode current collector and at least two layers of positive active material coated on at least one surface of the positive electrode current collector, and wherein the underlying positive active material layer in contact with the positive electrode current collector comprises a first positive active material, a first polymer material and a first conductive material, and the first polymer material comprises fluorinated polyolefin and/or chlorinated polyolefin polymer material. The battery has good safety and improved electrical properties.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: March 1, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Fenggang Zhao, Yongshou Lin, Zhenhua Li, Haizu Jin, Xiaowen Zhang
  • Publication number: 20220021016
    Abstract: The disclosure relates to an electrode assembly and its forming method and a manufacturing system, a secondary battery, a battery module and a device. The electrode assembly includes: a first electrode plate including a plurality of bending sections and a plurality of stacked first stacking sections, each bending section being configured to connect two adjacent first stacking sections, herein the bending section includes a guiding portion for guiding the bending section to be bent during production; and a second electrode plate with a polarity opposite to that of the first electrode plate, the second electrode plate including a plurality of second stacking sections, and each second stacking section being disposed between two adjacent first stacking sections.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 20, 2022
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Fenggang ZHAO, Zhiyang Wu, Ruhu Liao, Gang Zeng, Ya Dai, Yongsheng Yu
  • Publication number: 20220013855
    Abstract: Disclosed are a battery box, a battery cell, a battery, and a method and apparatus for preparing the battery box. The battery box includes: a first wall and a second wall, the first wall intersecting the second wall; and a pressure relief mechanism including a first portion and a second portion connected to each other, the first portion and the second portion being respectively arranged at the first wall and the second wall, wherein the first portion and/or the second portion are/is configured to be able to fracture, when an internal pressure of the battery box reaches a threshold, to relieve the internal pressure. Therefore, according to the battery box, the battery cell, the battery, and the method and apparatus for preparing the battery box of embodiments of the present application, thereby the performance of the pressure relief mechanism on the battery box is improved.
    Type: Application
    Filed: December 5, 2020
    Publication date: January 13, 2022
    Inventors: Fenggang ZHAO, Haibo KE, Quankun LI, Ningsheng WU, Zhanyu SUN
  • Publication number: 20220013755
    Abstract: Embodiments of the present application provide a case of a battery, a battery, a power consumption device, and a method and device for preparing a battery. The case includes: an electrical chamber configured to accommodate a plurality of battery cells and a bus component, where at least one battery cell of the plurality of battery cells includes a pressure relief mechanism; a thermal management component configured to accommodate a fluid to adjust temperatures of the plurality of battery cells; and a collection chamber configured to collect, when the pressure relief mechanism is actuated, emissions from the battery cell provided with the pressure relief mechanism; where the thermal management component is configured to isolate the electrical chamber from the collection chamber. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.
    Type: Application
    Filed: December 5, 2020
    Publication date: January 13, 2022
    Inventors: Xiaobo CHEN, Fenggang ZHAO, Yao LI, Peng WANG, Zhanyu SUN, Yongshou LIN
  • Patent number: 11223063
    Abstract: The disclosure relates to a battery module and the technical field of energy storage. The battery module comprises: a frame having an accommodation space; and a plurality of batteries successively arranged in the accommodation space in a thickness direction of the battery, wherein a partition is arranged between adjacent batteries, wherein the partition has a compressibility and a coefficient of compressibility ?1 at a pressure equal to or smaller than 2 MPa, which meets a relation C0×?1?A0×0.2, wherein C0 is an initial thickness of the partition, and A0 is an initial thickness of the battery.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: January 11, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Fenggang Zhao, Junda Tu, Xiaobo Chen, Dan Shen, Xuehui Wang
  • Patent number: 11196128
    Abstract: The present disclosure provides a battery module and a busbar assembly thereof. The busbar assembly comprises a first busbar, a second busbar and a first insulator. The first busbar comprises a first connecting portion connected to a first battery unit, a second connecting portion connected to a second battery unit and a first main portion connecting the first connecting portion and the second connecting portion. The second busbar comprises a third connecting portion connected to a third battery unit, a fourth connecting portion connected to a fourth battery unit and a second main portion connecting the third connecting portion and the fourth connecting portion. The first main portion partially overlaps the second main portion, and the first insulator insulates the second main portion and the first main portion. The first battery unit, the third battery unit, the second battery unit and the fourth battery unit are arranged sequentially.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: December 7, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Yuqun Zeng, Fenggang Zhao, Daohui Liu, Yangzhi Huang, Chuanlian Chen, Shengtian Cai, Hanqing Gao
  • Publication number: 20210328251
    Abstract: The disclosure relates to a battery module and the technical field of energy storage. The battery module comprises: a frame having an accommodation space; and a plurality of batteries successively arranged in the accommodation space in a thickness direction of the battery, wherein a partition is arranged between adjacent batteries, wherein the partition has a compressibility and a coefficient of compressibility ?1 at a pressure equal to or smaller than 2 MPa, which meets a relation C0×?1?A0×0.2, wherein C0 is an initial thickness of the partition, and A0 is an initial thickness of the battery.
    Type: Application
    Filed: December 4, 2018
    Publication date: October 21, 2021
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Fenggang ZHAO, Junda TU, Xiaobo CHEN, Dan SHEN, Xuehui WANG
  • Publication number: 20210320359
    Abstract: The present application is provided with a battery pack, including a first battery module, a second battery module and a box body, where the first battery module and the second battery module are housed in the box body; the box body including a lower box body configured to support the first battery module and the second battery module, and an upper box body fitting with the lower box body. The lower box body includes a first connecting portion, and the first connecting portion is located between the first battery module and the second battery module. The upper box body includes a second connecting portion, where the first connecting portion and the second connecting portion are fixed and connected. In the battery pack of the present application, the problem of downward deflection of the lower box body is avoided and the strength of the battery pack is improved.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Kaijie YOU, Xingdi CHEN, Yanhuo XIANG, Fenggang ZHAO, Linggang ZHOU, Peng WANG
  • Publication number: 20210313644
    Abstract: The embodiments of the present disclosure provide a battery module and a battery pack. A battery module includes: a cooling component; and a battery group, comprising secondary batteries disposed side by side in a first direction and each including a case having an accommodating hole, an electrode assembly disposed in the accommodating hole, and a cap assembly, the electrode assembly including two end faces disposed opposite to each other in a second direction intersecting the first direction and an electrode tab extending from each end face. The secondary batteries each includes two sides opposite to each other in the second direction, the cooling component is disposed on at least one of the two sides, the cooling component and the end face are respectively disposed on two sides of the case in the second direction, and the cooling component is connected and fixed to each of the secondary batteries.
    Type: Application
    Filed: June 22, 2021
    Publication date: October 7, 2021
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Haizu JIN, Linggang ZHOU, Peng WANG, Dongyang SHI, Xingdi CHEN, Fei Hu, Fenggang ZHAO, Yanhuo XIANG, Yongshou LIN
  • Patent number: 11139526
    Abstract: The present disclosure provides a battery box and a vehicle, the battery box comprises an upper box body, a lower box body, a connecting member, a fixing member. The upper box body comprises a first eave portion, the lower box body comprises a second eave portion. The first eave portion is provided with a first connecting hole, the second eave portion is provided with a second connecting hole and a mounting hole. The connecting member passes through the first connecting hole and the second connecting hole to connect the upper box body and the lower box body. The fixing member passes through the mounting hole to make the lower box body mounted to external equipment, compared with the conventional battery box, the lower box body is equivalent to the arrangement of eliminating the third eave portion, it simplifies the structure and reduces the weight, thereby improving the energy density.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: October 5, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Yuqun Zeng, Fenggang Zhao, Xingdi Chen, Lei Wang, Linggang Zhou, Peng Wang
  • Patent number: 11139527
    Abstract: The present disclosure provides a lower box body, a battery box and a vehicle, the lower box body comprises a base body, a first protecting assembly, a mounting hole. The base body comprises a bottom plate portion, a side plate portion, eave portions. The first protecting assembly is provided at outside of the base body, fixed to the base body and is attached to the eave portion. The mounting hole penetrates the eave portion and the first protecting assembly. The first protecting assembly improves the entirety structural strength of the lower box. Because the mounting hole is formed by penetrating the eave portion and the first protecting assembly, the structural stability of the mounting location of the lower box body is improved, thereby making the mounting location of the lower box body not be prone to be deformed or damaged when the battery box is subjected to the external force.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: October 5, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Yuqun Zeng, Fenggang Zhao, Xingdi Chen, Lei Wang, Linggang Zhou, Peng Wang, Derong Wang, Cong Bao
  • Patent number: 11050124
    Abstract: The present disclosure provides a battery module, a busbar and a busbar assembly thereof. The busbar comprises a first connecting portion, a second connecting portion and a first main portion. The first connecting portion is connected to a first battery of the battery module, the second connecting portion is connected to a second battery. The first main portion connects the first connecting portion and the second connecting portion, and the first connecting portion and the second connecting portion are positioned at the same side of the first main portion in a transverse direction. The first connecting portion and the second connecting portion are spaced from each other in a longitudinal direction, and a first slit is formed between the first connecting portion and the second connecting portion. The first main portion is provided with a first notch, the first notch is communicated with the first slit.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: June 29, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LTD.
    Inventors: Yuqun Zeng, Fenggang Zhao, Shengtian Cai, Yangzhi Huang, Chuanlian Chen, Daohui Liu
  • Patent number: 11050128
    Abstract: The present disclosure relates to a secondary battery and a manufacturing method of the secondary battery, and the secondary battery includes a case; an electrode assembly, accommodated in the case and including a main body and a tab connected to the main body; a cap plate, coupled to the case; an electrode terminal, located on an outer side of the cap plate and provided with a through hole; and a current collecting member, including an extending portion and a connecting portion connected to the extending portion, wherein the connecting portion is located on an inner side of the cap plate and is directly connected to the tab, and the extending portion is adapted to extend toward the electrode terminal and protrude into the through hole, and is connected to the electrode terminal. The configuration of the secondary battery of the present disclosure is conducive to improving an energy density.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: June 29, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Yuqun Zeng, Fenggang Zhao, Yong Zhou, Zhijun Guo, Peng Wang