公开(公告)号：US12021242B2

公开(公告)日：2024-06-25

申请号：US17135540

申请日：2020-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo Li ,  Lile Liu ,  Xia Hu ,  Shaojun Niu ,  Yongbin Wu

IPC: H01M4/66 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/661 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028

Abstract: This application provides a lithium-ion battery, a positive electrode plate for a lithium-ion battery, and an apparatus. The lithium-ion battery includes a positive electrode plate that includes a positive current collector and a positive active material layer arranged on at least one surface of the positive current collector. A positive active material in the positive active material layer includes a positive active substance I and a positive active substance II. The positive active substance I is a layered lithium nickel transition metal oxide. The positive active substance II is an olivine-type li-containing phosphate. The positive electrode plate satisfies 2.5≤N/(PD×(1−P1)×(1−A))≤21. The positive electrode plate for a lithium-ion battery has relatively high energy density, and a high transmission rate of lithium ions, which effectively increases instantaneous discharge power under a low SOC while ensuring high volume energy density of lithium-ion batteries using the positive electrode plate.

公开(公告)号：US20210175511A1

公开(公告)日：2021-06-10

申请号：US17135540

申请日：2020-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo Li ,  Lile Liu ,  Xia Hu ,  Shaojun Niu ,  Yongbin Wu

IPC: H01M4/66 ,  H01M4/36 ,  H01M4/131 ,  H01M4/134 ,  H01M4/133 ,  H01M4/525 ,  H01M4/505 ,  H01M4/58 ,  H01M10/0525

Abstract: This application provides a lithium-ion battery, a positive electrode plate for a lithium-ion battery, and an apparatus. The lithium-ion battery includes a positive electrode plate that includes a positive current collector and a positive active material layer arranged on at least one surface of the positive current collector. A positive active material in the positive active material layer includes a positive active substance I and a positive active substance II. The positive active substance I is a layered lithium nickel transition metal oxide. The positive active substance II is an olivine-type li-containing phosphate. The positive electrode plate satisfies 2.5≤N/(PD×(1−P1)×(1−A))≤21. The positive electrode plate for a lithium-ion battery has relatively high energy density, and a high transmission rate of lithium ions, which effectively increases instantaneous discharge power under a low SOC while ensuring high volume energy density of lithium-ion batteries using the positive electrode plate.