公开(公告)号：US20240113273A1

公开(公告)日：2024-04-04

申请号：US17959991

申请日：2022-10-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenzhu Xu ,  Chuanmiao Yan ,  Fuping Luo ,  Xinxin Du ,  Jiao Cao

IPC: H01M4/02 ,  H01M4/131 ,  H01M4/133 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525

CPC classification number: H01M4/02 ,  H01M4/131 ,  H01M4/133 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021

Abstract: The present disclosure provides a lithium-ion battery, the lithium-ion battery comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte, the positive active material comprises a layered lithium-containing compound, the negative active material comprises graphite, the positive film and the negative film satisfy a relationship 0.3≤(OIc×PDc)/(OIa×PDa)≤20.0. The present disclosure can make the lithium-ion battery have smaller swelling and higher charging capability, and also make the lithium-ion battery have excellent cycle life and excellent safety performance during the long-term fast charging process.

公开(公告)号：US20220166018A1

公开(公告)日：2022-05-26

申请号：US17547278

申请日：2021-12-10

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Maohua LI ,  Chuanmiao Yan ,  Xin Sun

IPC: H01M4/525 ,  H01M4/62 ,  H01M4/134 ,  H01M4/133 ,  H01M4/505

Abstract: The present application discloses a secondary battery and a battery module, a battery pack and an apparatus containing the secondary battery. The secondary battery comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte; the positive electrode plate comprising a positive electrode current collector and a positive electrode film disposed on at least one surface of the positive electrode current collector and comprising a positive electrode active material; the negative electrode plate comprising a negative electrode current collector and a negative electrode film disposed on at least one surface of the negative electrode current collector and comprising a negative electrode active material; wherein the positive electrode active material comprises one or more of lithium nickel cobalt manganese oxides and lithium nickel cobalt aluminium oxides; the negative electrode active material comprises a silicon-based material and a carbon material; and the secondary battery satisfies: 1.05≤K≤1.25.

公开(公告)号：US11658294B2

公开(公告)日：2023-05-23

申请号：US17547284

申请日：2021-12-10

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xin Feng ,  Jinyang Song ,  Xin Sun ,  Huisen Su ,  Chuanmiao Yan

IPC: H01M4/38 ,  H01M4/583 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0585 ,  H01M10/0525 ,  H01M50/209

CPC classification number: H01M4/386 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0585 ,  H01M50/209 ,  H01M2220/20

Abstract: The present application refers to secondary battery and battery module, battery pack and apparatus including the secondary battery. In particular, the secondary battery includes a housing as well as an electrode assembly and an electrolyte contained in the housing; the electrode assembly includes a positive electrode plate, a negative electrode plate and a separator, and the positive electrode plate includes a positive current collector and a positive electrode film that is disposed on at least one surface of the positive electrode current collector and includes a positive electrode active material; the positive electrode active material includes one or more of lithium nickel cobalt manganese oxide and lithium nickel cobalt aluminum oxide; the negative electrode plate includes a negative electrode current collector and a negative electrode film that is disposed on at least one surface of the negative electrode current collector and includes a negative electrode active material.

公开(公告)号：US11502328B2

公开(公告)日：2022-11-15

申请号：US16443371

申请日：2019-06-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenzhu Xu ,  Chuanmiao Yan ,  Fuping Luo ,  Xinxin Du ,  Jiao Cao

IPC: H01M10/0525 ,  H01M10/04

Abstract: The present disclosure provides a lithium-ion battery, the lithium-ion battery comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte, the positive active material comprises a layered lithium-containing compound, the negative active material comprises graphite, the positive film and the negative film satisfy a relationship 0.3≤(OIc×PDc)/(OIa×PDa)≤20.0. The present disclosure can make the lithium-ion battery have smaller swelling and higher charging capability, and also make the lithium-ion battery have excellent cycle life and excellent safety performance during the long-term fast charging process.

公开(公告)号：US11646415B2

公开(公告)日：2023-05-09

申请号：US17547278

申请日：2021-12-10

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Maohua Li ,  Chuanmiao Yan ,  Xin Sun

IPC: H01M4/525 ,  H01M4/133 ,  H01M4/134 ,  H01M4/505 ,  H01M4/62 ,  H01M4/02

CPC classification number: H01M4/525 ,  H01M4/133 ,  H01M4/134 ,  H01M4/505 ,  H01M4/622 ,  H01M4/625 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20

Abstract: The present application discloses a secondary battery and a battery module, a battery pack and an apparatus containing the secondary battery. The secondary battery comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte; the positive electrode plate comprising a positive electrode current collector and a positive electrode film disposed on at least one surface of the positive electrode current collector and comprising a positive electrode active material; the negative electrode plate comprising a negative electrode current collector and a negative electrode film disposed on at least one surface of the negative electrode current collector and comprising a negative electrode active material; wherein the positive electrode active material comprises one or more of lithium nickel cobalt manganese oxides and lithium nickel cobalt aluminium oxides; the negative electrode active material comprises a silicon-based material and a carbon material; and the secondary battery satisfies: 1.05≤K≤1.25.

公开(公告)号：US20220102714A1

公开(公告)日：2022-03-31

申请号：US17547284

申请日：2021-12-10

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xin Feng ,  Jinyang Song ,  Xin Sun ,  Huisen Su ,  Chuanmiao Yan

IPC: H01M4/38 ,  H01M4/583 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0585 ,  H01M10/0525 ,  H01M50/209

Abstract: The present application refers to secondary battery and battery module, battery pack and apparatus including the secondary battery. In particular, the secondary battery includes a housing as well as an electrode assembly and an electrolyte contained in the housing; the electrode assembly includes a positive electrode plate, a negative electrode plate and a separator, and the positive electrode plate includes a positive current collector and a positive electrode film that is disposed on at least one surface of the positive electrode current collector and includes a positive electrode active material; the positive electrode active material includes one or more of lithium nickel cobalt manganese oxide and lithium nickel cobalt aluminum oxide; the negative electrode plate includes a negative electrode current collector and a negative electrode film that is disposed on at least one surface of the negative electrode current collector and includes a negative electrode active material.

公开(公告)号：US11031622B2

公开(公告)日：2021-06-08

申请号：US16443455

申请日：2019-06-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qiaoge Wang ,  Shengwei Wang ,  Chuanmiao Yan ,  Fuping Luo ,  Yanyun Tan ,  Manfang Zhang

IPC: H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0566 ,  H01M4/583 ,  H01M4/133 ,  H01M4/131

Abstract: The present disclosure provides a lithium-ion secondary battery, which comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte. The lithium-ion secondary battery satisfies a relationship: 1.5≤(m×C)/(ρ×Cap)≤6.5. In the present disclosure, by comprehensively considering the rated capacity of the battery, the mass of the electrolyte and the intrinsic parameters of the electrolyte and reasonably quantifying the relationship thereof, the lithium-ion secondary battery can have good dynamics performance and longer cycle life at the same time.

公开(公告)号：US20200014061A1

公开(公告)日：2020-01-09

申请号：US16443455

申请日：2019-06-17

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Qiaoge Wang ,  Shengwei Wang ,  Chuanmiao Yan ,  Fuping Luo ,  Yanyun Tan ,  Manfang Zhang

IPC: H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0566 ,  H01M4/587

Abstract: The present disclosure provides a lithium-ion secondary battery, which comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte. The lithium-ion secondary battery satisfies a relationship: 1.5≤(m×C)/(ρ×Cap)≤6.5. In the present disclosure, by comprehensively considering the rated capacity of the battery, the mass of the electrolyte and the intrinsic parameters of the electrolyte and reasonably quantifying the relationship thereof, the lithium-ion secondary battery can have good dynamics performance and longer cycle life at the same time.