公开(公告)号：US20240280640A1

公开(公告)日：2024-08-22

申请号：US18024713

申请日：2020-11-20

申请人： EVE ENERGY CO., LTD ,  EVE HYPERPOWER BATTERIES INC.

发明人： Peiling SUN ,  Lang CAO ,  Yuan ZHU ,  Jianhua LIU ,  Jincheng LIU

IPC分类号： G01R31/3842

CPC分类号： G01R31/3842

摘要： The present application provides a charge level early warning method for composite battery packs, comprising: performing voltage test and/or current test on at least two groups of composite battery packs formed by connecting lithium-thionyl chloride batteries and capacitors in parallel, wherein the voltage test is used for obtaining the correlation between the state of charge of the lithium-thionyl chloride batteries and stable voltages, and the current test is used for obtaining the correlation between the state of charge of the lithium-thionyl chloride batteries and the maximum output current; and monitoring the composite battery packs on which charge level early warning is to be performed, and performing early warning according to a voltage, and/or performing early warning according to a current.

公开(公告)号：US20230268479A1

公开(公告)日：2023-08-24

申请号：US18014093

申请日：2020-10-16

申请人： EVE HYPERPOWER BATTERIES INC.

发明人： Huihui DENG ,  Lang CAO ,  Peiling SUN ,  Pingao WANG ,  Jun ZHANG ,  Yuan ZHU ,  Jianhua LIU ,  Jincheng LIU

IPC分类号： H01M4/04

CPC分类号： H01M4/0433 ,  H01M4/0471

摘要： An extrusion head (1) for molding a pole piece and a molding device comprising same, and a molding method and a preparation method therefor. The extrusion head (1) comprises an extrusion head (1) housing, and a through extrusion channel (6) is provided inside the extrusion head (1) housing in an extrusion direction; and the extrusion channel (6) is divided into a transition cavity (61) and a molding cavity (62) that are in sequential butt joint and communication in the extrusion direction, and the diameter of the annular surface of the inner wall of the transition cavity (61) is gradually reduced in the extrusion direction.