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公开(公告)号：US12119457B2
公开(公告)日：2024-10-15
申请号：US18525335
申请日：2023-11-30
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Haotian Xie , Xin Sun , Yongshou Lin
CPC classification number: H01M10/4235 , H01M4/131 , H01M4/5825 , H01M10/0525 , H01M2004/021 , H01M2004/028
Abstract: A secondary battery includes a positive electrode plate and an electrolyte solution. The positive electrode plate includes a positive current collector and a positive electrode film provided on at least one surface of the positive current collector. The positive electrode film includes a positive electrode active material and a lithium supplement. The lithium supplement includes at least one of substances represented by formula (I) below, and the positive electrode film and/or electrolyte solution comprises one or more nitrone derivatives, a molecule of each of which includes a structure represented by formula (II) below:
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公开(公告)号：US20240290944A1
公开(公告)日：2024-08-29
申请号：US18648388
申请日：2024-04-28
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Miaomiao Dong , Changfeng Bie , Shaocong Ouyang , Huan Ni , Hongyu Liu , Xin Sun , Chenghua Fu
IPC: H01M4/136 , H01M4/02 , H01M4/58 , H01M4/62 , H01M50/204 , H01M50/244
CPC classification number: H01M4/136 , H01M4/5825 , H01M4/62 , H01M50/204 , H01M50/244 , H01M2004/028
Abstract: Provided is a battery pack. The battery pack includes a first battery cell, a second battery cell, and a third battery cell. A positive electrode active substance of each battery cell is composed of lithium iron phosphate and a low-temperature additive. The low-temperature additive is selected from compounds containing at least two carbonyl groups, which are conjugated with an unsaturated structure or an atom having lone-pair electrons connected with the carbonyl groups. At a temperature lower than or equal to 10° C., a ratio of a discharging capacity of a single cell of the second battery cell to a discharging capacity of a single cell of the first battery cell ranges from 1.003 to 1.12, and a ratio of a discharging capacity of a single cell of the third battery cell to a discharging capacity of a single cell of the second battery cell ranges from 1.005 to 1.15.
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3.发明公开公开(公告)号：US20230369728A1
公开(公告)日：2023-11-16
申请号：US18337027
申请日：2023-06-18
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Lili Wu , Xingbu Chen , Xuan Li , Jianren Wei , Huisen Su , Xin Sun
IPC: H01M50/538 , H01M10/04
CPC classification number: H01M50/538 , H01M10/0409 , H01M10/0431
Abstract: Provided are an electrode assembly, a method and system for manufacturing the same, a battery cell, a battery, and an electric apparatus. The electrode assembly includes an electrode member wound along a winding direction, the electrode member includes an electrode body, and the electrode body includes an insulating matrix and a conductive layer disposed on the insulating matrix; and the conductive layer includes a first part coated with an active substance layer and a second part coated with no active substance layer; the second part is provided in a quantity of N, and the N second parts are spaced apart in the winding direction; and in the winding direction, distance between the Mth and (M-1)th second parts is L1., and distance between the Mth and (M+1)th second parts is L2, where both N and M are positive integers, 2 ≤ M ≤ N-1, and 0.95
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4.发明公开公开(公告)号：US20230369562A1
公开(公告)日：2023-11-16
申请号：US18359082
申请日：2023-07-26
Applicant: Contemporary Amperex Technology CO., Limited
Inventor： Lili WU , Miaomiao Dong , Xin Sun , Xingbu Chen , Xuan Li , Liang Yun , Peidong Song
IPC: H01M4/133 , H01M4/1393 , H01M4/583 , H01M4/36 , H01M4/04
CPC classification number: H01M4/133 , H01M4/1393 , H01M4/583 , H01M4/366 , H01M4/0404 , H01M2004/021
Abstract: An electrode plate and a method for preparing the electrode plate, a secondary battery, a battery module, a battery pack, and an electric apparatus are described. The electrode plate includes a current collector and an active substance layer provided on at least one surface of the current collector. The active substance layer includes an active main material and a porous material. The active substance layer has pores, where the pore runs through or not through the active substance layer. Thickness of the active substance layer is x, and distance between two end openings of the pore in a direction perpendicular to the active substance layer is y, where x and y satisfy the following condition: 0.1≤x≤y≤x.
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公开(公告)号：US20240282937A1
公开(公告)日：2024-08-22
申请号：US18648369
申请日：2024-04-27
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Liang Yun , Xin Sun , Lili Wu , Peidong Song , Miaomiao Dong
CPC classification number: H01M4/366 , H01M4/587 , H01M4/606 , H01M2004/021 , H01M2004/027
Abstract: Provided is a pore-forming agent for secondary battery and a preparation method thereof, a negative electrode plate, an electrode assembly, and a secondary battery. The pore-forming agent for secondary battery includes a one-dimensional conductive material and stable-state lithium metal particles, where the stable-state lithium metal particles are loaded on the one-dimensional conductive material.
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Patent Agency Ranking
6.发明授权公开(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.
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公开(公告)号：US12100841B2
公开(公告)日：2024-09-24
申请号：US18446063
申请日：2023-08-08
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xin Sun , Haotian Xie , Bangrun Wang
IPC: H01M4/62 , H01M4/136 , H01M4/36 , H01M4/38 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/58 , H01M10/42 , H01M4/02 , H01M4/131 , H01M10/0525
CPC classification number: H01M4/623 , H01M4/136 , H01M4/364 , H01M4/38 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/622 , H01M10/4235 , H01M2004/021 , H01M2004/028 , H01M4/131 , H01M10/0525 , H01M2220/20
Abstract: A positive electrode slurry composition, and a positive electrode sheet prepared thereof, a secondary battery, a battery module, a battery pack and a power consumption apparatus are described. The positive electrode slurry composition includes a positive electrode active material, a pre-lithiation material, and a binder, where the binder is shown in Formula (II)
where R1, R2, x, y, and z have meanings defined in the specification, a volume average particle size is D10≥0.3 μm, a volume average particle size D50 is 0.5-10 μm. The positive electrode slurry composition includes the binder in Formula (II) and the positive electrode active material with a specific particle size range, which is not easy to agglomerate and has high stability, and is conducive to improving machinability of the positive electrode sheet, and the binder in Formula (II) is conducive to improving bonding strength between the positive electrode active material and the pre-lithiation material.-
8.发明公开公开(公告)号：US20230282824A1
公开(公告)日：2023-09-07
申请号：US18186952
申请日：2023-03-21
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Haotian Xie , Peipei Chen , Xin Sun , Bangrun Wang , Jiantao Huang , Xingbu Chen , Xiao Chen , Na Liu , Chengdu Liang
IPC: H01M4/525 , H01M10/0525 , H01M4/485 , H01M4/505 , H01M10/0568 , H01M4/58 , H01M4/04 , H01M50/207
CPC classification number: H01M4/525 , H01M10/0525 , H01M4/485 , H01M4/505 , H01M10/0568 , H01M4/5825 , H01M4/0404 , H01M50/207 , H01M2004/028
Abstract: A lithium ion secondary battery and a preparation method therefor, a battery module, a battery pack, and a device are provided. In some embodiments, the lithium ion secondary battery comprises a positive electrode plate, a negative electrode plate and an electrolyte, wherein the positive electrode plate comprises a positive electrode active material and a positive electrode lithium-supplementing material comprising a lithium-rich metal oxide, and the lithium-rich metal oxide comprises one or more elements of Ni, Co, Fe, Mn, and Cu; the electrolyte comprises an electrolyte lithium salt and a solvent, and has a percentage ε of the total mass of a fluorine element in the anions of the electrolyte lithium salt relative to the total mass of the electrolyte of
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公开(公告)号：US20240186531A1
公开(公告)日：2024-06-06
申请号：US18407439
申请日：2024-01-09
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Lili Wu , Xuan Li , Xin Sun , Peidong Song , Liang Yun , Xingbu Chen , Miaomiao Dong
CPC classification number: H01M4/80 , H01M4/133 , H01M4/8828 , H01M2004/021 , H01M2004/028
Abstract: Provided are a positive electrode plate for secondary battery, a manufacturing method thereof, and a secondary battery, battery module, battery pack, and electric apparatus using such positive electrode plate for secondary battery. The positive electrode plate for secondary battery includes a current collector and a positive electrode active substance layer and further includes a porous layer containing a porous carbon material between the current collector and the positive electrode active substance layer.
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公开(公告)号：US20230352692A1
公开(公告)日：2023-11-02
申请号：US18324992
申请日：2023-05-28
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Xuan Li , Xin Sun , Lili Wu , Huisen Su , Jianren Wei , Xingbu Chen
Abstract: A secondary battery, a battery module, a battery pack, and an electrical device are provided. The secondary battery includes a negative electrode plate, a positive electrode plate, and a separator located between the negative electrode plate and the positive electrode plate. The negative electrode plate or the separator includes a safety coating. A negative electrode charge capacity Nc and a positive electrode charge capacity Pc of the secondary battery satisfy: 0.45≤Nc/Pc
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