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公开(公告)号：US20240356087A1
公开(公告)日：2024-10-24
申请号：US18685367
申请日：2022-08-02
发明人： Takashi FUKUDA , Shinya ASAI , Takuya MURATA
IPC分类号： H01M10/0585 , H01M10/0525 , H01M10/0566 , H01M50/609
CPC分类号： H01M10/0585 , H01M10/0525 , H01M10/0566 , H01M50/609
摘要： A restraining jig includes: a first unit configured to apply a restraining load in the Z-axis direction to an electrode laminate via a pair of restraint members disposed at both ends in the Z-axis direction of the electrode laminate; and a second unit including a flow channel part communicating with a space by being connected to an opening, and a base part supporting the flow channel part. The second unit is disposed to be freely attached to or detached from the first unit. When the base part is fixed to at least one of the pair of restraint members by fixing parts configured to regulate movement in the X-axis direction of the second unit with respect to the first unit and fix the second unit, the flow channel part is liquid-tightly connected to the opening.
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公开(公告)号：US20240283021A1
公开(公告)日：2024-08-22
申请号：US18638223
申请日：2024-04-17
发明人： Masayuki IHARA
IPC分类号： H01M10/0566 , H01M4/02 , H01M4/505 , H01M4/525 , H01M10/0525
CPC分类号： H01M10/0566 , H01M4/505 , H01M4/525 , H01M2004/028 , H01M10/0525
摘要： A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode active material. The electrolytic solution includes an electrolyte salt. The positive electrode active material includes a lithium-containing compound, lithium carbonate, and lithium hydroxide. A content of lithium carbonate in the positive electrode active material is greater than or equal to 0.2 wt % and less than or equal to 0.7 wt %. A content of lithium hydroxide in the positive electrode active material is greater than or equal to 0.2 wt % and less than or equal to 0.7 wt %. The electrolyte salt includes an imide anion, and the imide anion includes at least one of a first imide anion represented by Formula (1), a second imide anion represented by Formula (2), a third imide anion represented by Formula (3), or a fourth imide anion represented by Formula (4).
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公开(公告)号：US20240283020A1
公开(公告)日：2024-08-22
申请号：US18637869
申请日：2024-04-17
发明人： Masayuki IHARA
IPC分类号： H01M10/0566 , H01M4/02 , H01M4/583 , H01M10/0525
CPC分类号： H01M10/0566 , H01M4/583 , H01M10/0525 , H01M2004/027
摘要： A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes a negative electrode active material layer. The electrolytic solution includes an electrolyte salt. The negative electrode active material layer includes a carbon material. The negative electrode active material layer has a thickness of greater than or equal to 30 μm and less than or equal to 100 μm. The negative electrode active material layer has a volume density of greater than or equal to 1.4 g/cm3 and less than or equal to 2 g/cm3. The electrolyte salt includes an imide anion. The imide anion includes at least one of a first imide anion represented by Formula (1), a second imide anion represented by Formula (2), a third imide anion represented by Formula (3), or a fourth imide anion represented by Formula (4).
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公开(公告)号：US12068471B2
公开(公告)日：2024-08-20
申请号：US16971865
申请日：2019-02-21
发明人： Shotaro Doi , Yuki Kusachi , Noboru Yamauchi , Tomohiro Kaburagi , Hideaki Horie , Yusuke Nakashima , Kazuya Tsuchida , Naofumi Shoji , Koji Sumiya , Shigehito Asano , Yasuyuki Koga , Nobuo Ando , Terukazu Kokubo
IPC分类号： H01M4/04 , H01G11/06 , H01G11/50 , H01G11/86 , H01M4/139 , H01M10/0525 , H01M10/0566 , H01M4/02
CPC分类号： H01M4/049 , H01G11/06 , H01G11/50 , H01G11/86 , H01M4/139 , H01M10/0525 , H01M10/0566 , H01M2004/027 , H01M2300/0014 , H01M2300/0025
摘要： A predoping method for a negative electrode active material to dope the negative electrode active material with lithium ions using an electrolyte solution that includes lithium ions. The electrolyte solution includes at least one type of additive having a reduction potential higher than a reduction potential of a solvent contained in the electrolyte solution.
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公开(公告)号：US12057548B2
公开(公告)日：2024-08-06
申请号：US15688156
申请日：2017-08-28
发明人： Aruna Zhamu , Bor Z. Jang
IPC分类号： H01M10/0525 , H01M4/04 , H01M4/139 , H01M4/36 , H01M4/50 , H01M4/62 , H01M10/052 , H01M10/054 , H01M10/0565 , H01M10/0566 , H01M10/0585
CPC分类号： H01M10/0525 , H01M4/0404 , H01M4/139 , H01M4/364 , H01M4/502 , H01M4/622 , H01M10/052 , H01M10/054 , H01M10/0565 , H01M10/0566 , H01M10/0585 , H01M4/0471 , H01M2300/0085 , Y02E60/10
摘要： A process for producing an electrochemical cell, comprising: (A) continuously depositing a wet cathode active material mixture onto a surface of a cathode current collector to form a cathode electrode, wherein the wet cathode active material mixture contains 30% to 85% by volume of a cathode active material and 0% to 15% by volume of a conductive additive dispersed in a first liquid or polymer gel electrolyte; (B) continuously depositing a wet anode active material mixture onto a surface of an anode current collector to form an anode electrode, wherein the wet anode active material mixture contains an anode active material and a conductive additive dispersed in a second electrolytes; and (C) combining the cathode electrode or a portion thereof and the anode electrode or a portion thereof to form the cell; wherein the anode electrode and/or the cathode electrode has a thickness from 200 μm to 3,000 μm.
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公开(公告)号：US12040449B2
公开(公告)日：2024-07-16
申请号：US18347053
申请日：2023-07-05
发明人： Kefei Wang , Qiao Zeng , Liangzhen Xiao , Fei Wu
IPC分类号： H01M4/64 , H01M4/13 , H01M10/0525 , H01M10/0566 , H01M10/0567 , H01M10/0569
CPC分类号： H01M10/0566 , H01M4/13 , H01M4/64 , H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M2300/0025 , H01M2300/0034 , H01M2300/0037
摘要： An electrolyte including a dinitrile compound, a trinitrile compound, and propyl propionate. Based on the total weight of the electrolyte, the weight percentage of the dinitrile compound is X, the weight percentage of the trinitrile compound is Y, and the weight percentage of the propyl propionate is Z, wherein, about 2.2 wt %≤(X+Y)≤about 8 wt %, about 0.1≤(X/Y)≤about 2.3, about 5 wt %≤Z≤about 50 wt %, 1 wt %
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公开(公告)号：US11935998B2
公开(公告)日：2024-03-19
申请号：US17059833
申请日：2019-05-22
IPC分类号： H01M10/04 , H01M10/0566 , H01M10/0585 , H01M50/209 , H01M50/211 , H01M50/238 , H01M50/242
CPC分类号： H01M10/0468 , H01M10/0585 , H01M10/0486 , H01M10/0566 , H01M50/209 , H01M50/211 , H01M50/238 , H01M50/242 , H01M2220/20
摘要： A battery device comprises a nonaqueous electrolyte secondary battery provided with an electric power generating element and a pressing member which presses the electric power generating element in the stacking direction. The electric power generating element comprises: a positive electrode with a positive electrode active material layer of a positive electrode active material on the surface of a positive electrode collector; a negative electrode with a negative electrode active material layer of a negative electrode active material on the surface of a negative electrode collector; and a separator which holds an electrolyte solution. This battery device satisfies (1) 0.1
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公开(公告)号：US11870038B2
公开(公告)日：2024-01-09
申请号：US17736723
申请日：2022-05-04
申请人： AESC Japan Ltd.
IPC分类号： G01R31/28 , H01M10/058 , H01M10/0566 , G01R31/385 , H01M10/42 , H01M4/04 , H01M10/0525 , G01R31/52
CPC分类号： H01M10/058 , G01R31/3865 , H01M4/0447 , H01M10/0525 , H01M10/0566 , H01M10/42 , G01R31/52 , H01M2300/0037
摘要： A method of manufacturing a lithium-ion secondary battery of the present invention includes at least four steps as follows: an initial charging step of charging the lithium-ion secondary battery, which has not been subjected to initial charging, under a temperature environment ranging of equal to or higher than −20° C. and equal to or lower than 15° C.; an aging step of leaving the lithium-ion secondary battery under a temperature environment ranging of equal to or higher than 30° C. and equal to or lower than 80° C. after the initial charging step; a short circuit detecting step of detecting the presence or absence of a short circuit of the lithium-ion secondary battery by measuring a voltage drop quantity of the lithium-ion secondary battery and comparing the voltage drop quantity with a reference value; and a sorting step of sorting out a lithium-ion secondary battery in which no short circuit is detected.
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公开(公告)号：US20240006664A1
公开(公告)日：2024-01-04
申请号：US17809983
申请日：2022-06-30
发明人： Steven A. Hawks
IPC分类号： H01M10/42 , H01M10/0566
CPC分类号： H01M10/4214 , H01M10/0566
摘要： Energy storage apparatus, systems, and methods provide an energy storage enclosure, a negative electrode in the enclosure, a positive electrode in the enclosure, a separator between the negative electrode and the positive electrode, an electrolyte in the enclosure, and the circulation of the electrolyte through the negative electrode and the positive electrode.
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公开(公告)号：US20230352734A1
公开(公告)日：2023-11-02
申请号：US18347053
申请日：2023-07-05
发明人： Kefei WANG , Qiao ZENG , Liangzhen XIAO , Fei WU
IPC分类号： H01M10/0566 , H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M4/64 , H01M4/13
CPC分类号： H01M10/0566 , H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M4/64 , H01M4/13 , H01M2300/0025 , H01M2300/0034 , H01M2300/0037
摘要： An electrolyte including a dinitrile compound, a trinitrile compound, and propyl propionate. Based on the total weight of the electrolyte, the weight percentage of the dinitrile compound is X, the weight percentage of the trinitrile compound is Y, and the weight percentage of the propyl propionate is Z, wherein, about 2.2 wt %≤(X+Y)≤about 8 wt %, about 0.1≤(X/Y)≤about 2.3, about 5 wt %≤Z≤about 50 wt %, 1 wt %
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