公开(公告)号：US20240297419A1

公开(公告)日：2024-09-05

申请号：US18665584

申请日：2024-05-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chunpeng Yu ,  Quanguo Li ,  Qian Liu ,  Yonghuang Ye ,  Dejun Xiao

IPC: H01M50/533 ,  H01M10/04 ,  H01M50/249 ,  H01M50/538 ,  H01M50/553 ,  H01M50/593

CPC classification number: H01M50/533 ,  H01M10/0431 ,  H01M50/249 ,  H01M50/538 ,  H01M50/553 ,  H01M50/593

Abstract: Provided are an electric device, a battery, and a battery unit and a manufacturing method. The battery unit includes a housing, electrode terminals, multiple battery cells, and current collecting members. The electrode terminals are provided at the top of the housing. The multiple battery cells are accommodated within the housing. At least two of the battery cells have different heights, and the current collecting members are provided within an accommodation space formed by a main body of a shortest battery cell and the top of the housing. The battery includes the foregoing battery unit. The electric device includes the foregoing battery. The manufacturing method of the battery unit includes providing current collecting members within an accommodation space formed by a main body of a shortest battery cell and the top of the housing. The electric device, battery, and battery unit and manufacturing method thereof improve space utilization and energy density.

公开(公告)号：US20250006927A1

公开(公告)日：2025-01-02

申请号：US18882759

申请日：2024-09-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo Li ,  Qian Liu ,  Yonghuang Ye ,  Chunpeng Yu ,  Jingxuan Sun ,  Jiahua Chen ,  Dejun Xiao

IPC: H01M4/583 ,  H01M4/02 ,  H01M10/054

Abstract: The present application provides a sodium-ion battery, a battery module, a battery pack, and an electrical device. The sodium-ion battery includes a positive electrode plate, a negative electrode plate, and a separator; the positive electrode plate includes a positive electrode current collector and a positive electrode active material layer arranged on at least one surface of the positive electrode current collector, the negative electrode plate includes a negative electrode current collector and a negative electrode active material layer arranged on at least one surface of the negative electrode current collector, and the separator is arranged between the positive electrode plate and the negative electrode plate; the positive electrode active material layer has a porosity denoted as α, the negative electrode active material layer has a porosity denoted as β, and the separator has a porosity denoted as γ, which satisfy 0≤(β−α)/γ≤1.5, and α≤γ.

公开(公告)号：US20250070321A1

公开(公告)日：2025-02-27

申请号：US18945562

申请日：2024-11-13

Applicant: JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED ,  CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo Li ,  Qian Liu ,  Yonghuang Ye ,  Chunpeng Yu ,  Jingxuan Sun ,  Dejun Xiao ,  Jiahua Chen

IPC: H01M10/658 ,  H01M10/054 ,  H01M50/213 ,  H01M50/244 ,  H01M50/342 ,  H01M50/503 ,  H01M50/509

Abstract: The present application relates to the technical field of batteries, and discloses a battery and a power consuming device. The battery includes: a plurality of first battery cells and a plurality of second battery cells, at least one of the second battery cells being provided between any two of the first battery cells, and any one of the second battery cells being adjacent to at least one of the second battery cells; wherein the thermal stability of the second battery cell is higher than the thermal stability of the first battery cell. With the technical solution of the present application, the risk of the spread of thermal runaway of the battery can be reduced, and thus the safety of the battery can be enhanced.