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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.-
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.
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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.
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公开(公告)号：US11909000B2
公开(公告)日：2024-02-20
申请号：US17820944
申请日：2022-08-19
发明人： Chang Peng , Peipei Chen , Hailin Zou , Chengdu Liang
IPC分类号： H01M4/505 , H01M4/525 , H01M10/0568 , H01M10/0525 , H01M10/0567 , H01M4/02
CPC分类号： H01M10/0568 , H01M10/0525 , H01M10/0567 , H01M4/505 , H01M4/525 , H01M2004/028 , H01M2220/20 , H01M2300/0025
摘要： A lithium-ion secondary battery is provided, where an electrolyte solution of the lithium-ion secondary battery comprises a highly heat-stable salt (My+)x/yR1(SO2N−)xSO2R2, where the My+ is a metal ion, R1 and R2 are each independently a fluorine atom, an alkyl with 1-20 carbon atoms, a fluoroalkyl with 1-20 carbon atoms, or a fluoroalkoxy with 1-20 carton atoms, x is 1, 2, or 3, and y is 1, 2, or 3. A mass percent of the salt in the electrolyte solution is set as k2%; a temperature rise coefficient k1 of the positive electrode sheet satisfies 2.5≤k1≤32, where k1=Cw/Mc, Cw is a positive electrode material load per unit area (mg/cm2) on the surface of any side of the positive electrode current collector on which a positive electrode material layer is loaded, and Mc is a carbon content (%) of the positive electrode material layer; and the lithium-ion secondary battery satisfies 0.34≤k2/k1≤8.
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公开(公告)号：US11888116B2
公开(公告)日：2024-01-30
申请号：US17930420
申请日：2022-09-08
发明人： Peipei Chen , Chang Peng , Hailin Zou
IPC分类号： H01M10/0525 , H01M10/0567 , H01M50/534 , H01M10/0568
CPC分类号： H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M50/534 , H01M2220/20
摘要： The present disclosure provides a fast charge long lifetime secondary battery, a battery module, a battery pack, and a power consumption device. In some embodiments, a secondary battery, comprising an electrode assembly and an electrolytic solution, the electrode assembly comprises a positive electrode plate, a negative electrode plate, and a separator, the positive electrode plate comprises a positive electrode tab, and the negative electrode plate comprises a negative electrode tab are provided. In those embodiments, the positive electrode tab has the following temperature rise coefficient:
α
=
C
1
0
S
1
where S1 is a total cross-sectional area of the positive electrode tab, in unit of mm2; C is capacity of the electrode assembly, in unit of A·h; the electrolytic solution contains a heat stable salt and an additive that inhibits decomposition of the lithium salt.-
公开(公告)号：US11329319B2
公开(公告)日：2022-05-10
申请号：US17135600
申请日：2020-12-28
发明人： Hailin Zou , Ming Zhang , Changlong Han , Cuiping Zhang
IPC分类号： H01M10/056 , H01M10/0567 , H01M50/538 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0587 , H01M4/02
摘要： The present disclosure relates to a lithium ion battery including an electrode assembly; and an electrolytic solution for infiltrating the electrode assembly and an electrical apparatus including the same, wherein the electrode assembly includes an electrode body, a positive electrode tab, and a negative electrode tab. The electrode body includes a positive electrode plate, a negative electrode plate, and a separator that are wound together around an axis. The positive electrode plate includes a positive current collector and a positive electrode material layer provided on at least one surface of the positive electrode current collector. In an axial direction (X), the electrode body has two opposite side portions, and the positive electrode tab and the negative electrode tab extend from the two side portions of the electrode body, respectively. A diffusion rate v of the electrolytic solution to the electrode body is from 0.01 μg/s to 5 μg/s.
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公开(公告)号：US20220021020A1
公开(公告)日：2022-01-20
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 , H01M4/131 , H01M10/0567 , H01M10/0569
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.
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公开(公告)号：US20240322260A1
公开(公告)日：2024-09-26
申请号：US18731354
申请日：2024-06-03
发明人： Hailin Zou , Peipei Chen
IPC分类号： H01M10/42 , C07D213/79 , C07F9/50 , H01M10/0525 , H01M10/054 , H01M50/417 , H01M50/426 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/451 , H01M50/457 , H01M50/489
CPC分类号： H01M10/4235 , C07D213/79 , C07F9/5004 , C07F9/5022 , H01M10/0525 , H01M10/054 , H01M50/417 , H01M50/426 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/451 , H01M50/457 , H01M50/489 , H01M2220/20
摘要： The present application provides a secondary battery and an electrical apparatus containing the same. The secondary battery includes a positive electrode sheet, a negative electrode sheet, a separator disposed between the positive electrode sheet and the negative electrode sheet, and an electrolyte solution, wherein the separator includes a substrate and an inorganic and/or organic particle layer disposed on at least one surface of the substrate, and the separator further includes an acid scavenging additive located among the inorganic and/or organic particles of the inorganic and/or organic particle layer or located in a form of a separate layer between the substrate and the inorganic and/or organic particle layer, wherein the maximum dissolution amount of the acid scavenging additive in the electrolyte solution at 25° C. is less than 1% by mass relative to the mass of the electrolyte solution.
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公开(公告)号：US20240283026A1
公开(公告)日：2024-08-22
申请号：US18622884
申请日：2024-03-30
发明人： Ningbo Xu , Hailin Zou , Peipei Chen
IPC分类号： H01M10/0567 , H01M10/0525
CPC分类号： H01M10/0567 , H01M4/62 , H01M10/0525 , H01M10/4235
摘要： A secondary battery includes an additive. The structure of the additive is R1—X—R0, where X is one of carbon, nitrogen, silicon, phosphorus, and sulfur; R0 includes one or two non-polar groups; and R1 is a polar chain group or a polar cyclic group, where the chain group includes one or more of double bond, triple bond, and silicon-oxygen bond, and the cyclic group includes one or more of three-membered heterocycle, four-membered heterocycle, five-membered heterocycle, and six-membered heterocycle.
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10.发明申请公开(公告)号：US20230091618A1
公开(公告)日：2023-03-23
申请号：US17930420
申请日：2022-09-08
发明人： Peipei Chen , Chang Peng , Hailin Zou
IPC分类号： H01M10/0567 , H01M50/534 , H01M10/0568 , H01M10/0525
摘要： The present disclosure provides a fast charge long lifetime secondary battery, a battery module, a battery pack, and a power consumption device. Particularly, the present disclosure provides a secondary battery, comprising an electrode assembly and an electrolytic solution, the electrode assembly comprises a positive electrode plate, a negative electrode plate, and a separator, the positive electrode plate comprises a positive electrode tab, and the negative electrode plate comprises a negative electrode tab, wherein the positive electrode tab has the following temperature rise coefficient: α = C 1 0 S 1 where S1 is a total cross-sectional area of the positive electrode tab, in unit of mm2; C is capacity of the electrode assembly, in unit of A·h; the electrolytic solution contains a heat stable salt and an additive that inhibits decomposition of the lithium salt.
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