-
公开(公告)号：US20240332622A1
公开(公告)日：2024-10-03
申请号：US18648384
申请日：2024-04-28
发明人： Ningbo Xu , Hailin Zou , Peipei Chen
IPC分类号： H01M10/0567 , H01M10/0525 , H01M10/0569
CPC分类号： H01M10/0567 , H01M10/0525 , H01M10/0569 , H01M2300/0028
摘要： This application relates to a secondary battery including a silicate ester and/or a derivative thereof, where the silicate ester and/or the derivative thereof includes a
structure in a cyclic or non-cyclic structure or a
structure in a cyclic structure. This application further relates to a battery pack including the secondary battery and an electric apparatus including the secondary battery or the battery pack.-
2.发明公开公开(公告)号：US20240283027A1
公开(公告)日：2024-08-22
申请号：US18638759
申请日：2024-04-18
发明人： Peipei Chen , Limei Zhang , Yao Jiang , Jiao Liu
IPC分类号： H01M10/0567 , H01M4/36 , H01M4/505 , H01M4/58
CPC分类号： H01M10/0567 , H01M4/366 , H01M4/505 , H01M4/5825 , H01M2300/0025
摘要： The present application provides a secondary battery and a battery module, battery pack and electrical device containing the same. The secondary battery comprises a positive electrode plate and an non-aqueous electrolytic solution, wherein the positive electrode plate comprises a positive electrode active material with a core-shell structure, said positive electrode active material comprising an core and a shell covering said core, said core has a chemical formula of Li1+xMn1-yAyP1-zRzO4; said shell comprises a first cladding layer covering said core, a second cladding layer covering said first cladding layer and a third cladding layer covering said second cladding layer, said non-aqueous electrolytic solution comprises a first additive, said first additive comprises one or more of compounds as shown by Formula 1, Formula 2 and Formula 3.
-
公开(公告)号：US11961969B2
公开(公告)日：2024-04-16
申请号：US17196943
申请日：2021-03-09
发明人： Chengdu Liang , Chenghua Fu , Peipei Chen , Junmin Feng
IPC分类号： H01M10/0569 , H01M10/0525 , H01M10/0567
CPC分类号： H01M10/0569 , H01M10/0525 , H01M10/0567 , H01M2220/20 , H01M2300/0037
摘要： This application provides a nonaqueous electrolyte, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The nonaqueous electrolyte includes a nonaqueous solvent, a lithium salt, and an additive. The nonaqueous solvent is a high oxidation potential solvent, and the additive includes cyclic sulfate. The high oxidation potential solvent is selected from one or more of compounds represented by formula I and formula II, and the cyclic sulfate may be selected from one or more of compounds represented by formula III. This application can not only improve electrochemical performance of the lithium-ion battery under high temperature and high voltage and improve safety performance such as overcharge safety and hot box safety of the lithium-ion battery, but also ensure that the lithium-ion battery has some kinetic performance.
-
公开(公告)号：US20220123368A1
公开(公告)日：2022-04-21
申请号：US17566699
申请日：2021-12-31
发明人： Chengdu Liang , Peipei Chen , Chenghua Fu , Chang Peng
IPC分类号： H01M10/0569 , H01M10/0567 , H01M4/60
摘要： The present application relates to a secondary battery, comprising: a positive electrode plate, a negative electrode plate, a separator disposed between the positive electrode plate and the negative electrode plate, and an electrolyte solution, the negative electrode plate including a negative electrode current collector and a negative electrode active material layer provided on at least one side of the negative electrode current collector, and the electrolyte solution including an organic solvent and a lithium salt, wherein the negative electrode active material comprises a core structure and a polymer network coating layer coated on at least a part of the surface of the core structure.
-
5.发明授权公开(公告)号：US12100810B2
公开(公告)日：2024-09-24
申请号：US18638759
申请日：2024-04-18
发明人： Peipei Chen , Limei Zhang , Yao Jiang , Jiao Liu
IPC分类号： H01M10/0567 , H01M4/36 , H01M4/505 , H01M4/58
CPC分类号： H01M10/0567 , H01M4/366 , H01M4/505 , H01M4/5825 , H01M2300/0025
摘要： The present application provides a secondary battery and a battery module, battery pack and electrical device containing the same. The secondary battery comprises a positive electrode plate and an non-aqueous electrolytic solution, wherein the positive electrode plate comprises a positive electrode active material with a core-shell structure, said positive electrode active material comprising an core and a shell covering said core, said core has a chemical formula of Li1+xMn1-yAyP1-zRzO4; said shell comprises a first cladding layer covering said core, a second cladding layer covering said first cladding layer and a third cladding layer covering said second cladding layer, said non-aqueous electrolytic solution comprises a first additive, said first additive comprises one or more of compounds as shown by Formula 1, Formula 2 and Formula 3.
-
公开(公告)号：US12068457B2
公开(公告)日：2024-08-20
申请号：US17199256
申请日：2021-03-11
发明人： Junmin Feng , Peipei Chen , Chenghua Fu , Chengdu Liang
IPC分类号： H01M10/0569 , H01M10/0525 , H01M10/0567 , H01M4/1391 , H01M10/0568
CPC分类号： H01M10/0569 , H01M10/0525 , H01M10/0567 , H01M4/1391 , H01M10/0568 , H01M2220/20 , H01M2300/0022 , H01M2300/0034 , H01M2300/0037
摘要： This application provides a lithium-ion battery, a battery module, a battery pack, and an apparatus. The lithium-ion battery includes a positive electrode plate, a negative electrode plate, a separator, and a nonaqueous electrolyte. The positive electrode plate includes Li1+xNiaCobMe(1−a−b)O2−cYc, where −0.1≤x≤0.2, 0.8≤a
-
7.发明申请公开(公告)号：US20230136779A1
公开(公告)日：2023-05-04
申请号：US18149079
申请日：2022-12-31
发明人： Limei Zhang , Peipei Chen , Bangrun Wang
IPC分类号： H01M10/0567 , H01M10/0525 , H01M4/62
摘要： A lithium-ion battery and a battery module, a battery pack, and an electric apparatus containing the same are provided. The lithium-ion battery includes a positive electrode active material layer including a positive electrode active material and a pre-lithiation agent and an electrolyte including an additive, where the pre-lithiation agent is a lithium metal oxide pre-lithiation agent, the additive includes at least one of compound 1 shown in constitutional formula (I) and compound 2 shown in constitutional formula (II) below. In the following constitutional formula (I), R1 is an oxygen atom or methylene, and R2 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 3 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms.
-
公开(公告)号：US11522214B2
公开(公告)日：2022-12-06
申请号：US17320258
申请日：2021-05-14
发明人： Chengdu Liang , Cuiping Zhang , Changlong Han , Ming Zhang , Peipei Chen , Hailin Zou
IPC分类号： H01M10/0525 , H01M10/04 , H01M10/0585 , H01M10/0568 , H01M10/0567 , H01M10/0569 , H01M4/131 , H01M4/02
摘要： This application relates to lithium-ion batteries and related battery modules, battery packs and devices. Specifically, the lithium-ion battery includes a positive electrode plate, a negative electrode plate, an electrolyte, and a separator, wherein the positive electrode plate includes aluminum foil as a positive electrode current collector, and a content of element copper atom as an impurity per unit area of the aluminum foil is from 0.009 g/m2 to 0.021 g/m2, and the electrolyte contains first lithium salt and additive A, and the first lithium salt is a fluorine-containing sulfonimide lithium salt, and relative to total molar amount of lithium salt in the electrolyte, the fluorine-containing sulfonimide lithium salt has a molar amount of 30 mol % or higher; and the additive A is at least one of a phosphate compound containing an unsaturated bond, a cyclic compound containing a —SO2— bond and a silicon-oxygen compound containing an unsaturated bond.
-
公开(公告)号：US20220102757A1
公开(公告)日：2022-03-31
申请号：US17511384
申请日：2021-10-26
发明人： Chengdu Liang , Chenghua Fu , Peipei Chen , Bin Jiang
IPC分类号： H01M10/0567 , H01M10/0525 , H01M10/42 , H01M10/0569 , H01M10/0585 , H01M4/505 , H01M4/525
摘要： This application provides an electrolyte, a lithium-ion battery, and an apparatus containing the lithium-ion battery. The electrolyte includes a lithium salt, an organic solvent, and an additive. The additive includes a sulfur-containing compound and lithium difluorophosphate, and a reduction potential of the sulfur-containing compound is higher than a reduction potential of lithium difluorophosphate. Because the reduction potential of the sulfur-containing compound is higher than the reduction potential of lithium difluorophosphate, the sulfur-containing compound can form a low-impedance SEI film on a surface of a negative electrode prior to lithium difluorophosphate, allowing more lithium difluorophosphate to form a passivation film with good thermostability on a surface of a positive electrode, so that the lithium-ion battery has good high-temperature storage performance and cycling performance, without suffering performance deterioration such as lithium precipitation.
-
公开(公告)号：US11196086B2
公开(公告)日：2021-12-07
申请号：US17131803
申请日：2020-12-23
发明人： Chengdu Liang , Cuiping Zhang , Ming Zhang , Peipei Chen , Hailin Zou , Liye Li
IPC分类号： H01M10/0568 , H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M4/525 , C07C311/48 , C07D327/00 , H01M4/02
摘要： The present application relates to a lithium ion battery, comprising: a positive electrode plate, a negative electrode plate, a separator disposed between the positive electrode plate and the negative electrode plate, and an electrolytic solution, the positive electrode plate including a positive electrode current collector and a positive electrode active material layer provided on at least one side of the positive electrode current collector, and the electrolytic solution including an organic solvent, a lithium salt and an additive, wherein the lithium salt comprises a primary lithium salt, the primary lithium salt is a first compound in an amount of 30% or more relative to the total molar amount of the lithium salt, and the first compound has a structure represented by the following formula I, and wherein the additive comprises a second compound represented by the following formula II.
-
-
-
-
-
-
-
-
-
搜索结果
27 条记录 (耗时 0.022 秒)
