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公开(公告)号:US20240063435A1
公开(公告)日:2024-02-22
申请号:US17914601
申请日:2021-11-17
发明人: Jung Gu Han , Jung Min Lee , Chul Haeng Lee , Chul Eun Yeom , Kyung Mi Lee
IPC分类号: H01M10/0567 , H01M10/052 , C07D319/06
CPC分类号: H01M10/0567 , H01M10/052 , C07D319/06 , H01M2300/0042
摘要: A non-aqueous electrolyte solution for a lithium secondary battery according to the present technology includes: a lithium salt; an organic solvent; and a first additive, and the first additive includes a compound represented by following Chemical formula 1:
Herein, R1 is a substituted or unsubstituted unsaturated hydrocarbon group having 2 to 20 carbon atoms, and R2 is one selected from the group consisting of a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms and a substituted or unsubstituted cyclic alkyl group having 3 to 8 carbon atoms.-
2.
公开(公告)号:US20230253619A1
公开(公告)日:2023-08-10
申请号:US17766629
申请日:2021-06-22
发明人: Jung Min Lee , Young Min Lim , Chul Eun Yeom , Chul Haeng Lee
IPC分类号: H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M50/46 , H01M10/0587 , H01M10/052
CPC分类号: H01M10/0567 , H01M10/052 , H01M10/0568 , H01M10/0569 , H01M10/0587 , H01M50/46 , H01M2300/0037 , H01M2300/0051
摘要: A non-aqueous electrolyte and a lithium secondary battery including the same are disclosed herein. The non-aqueous electrolyte may be used in a high-voltage battery to achieve excellent life characteristics. In some embodiments, a non-aqueous electrolyte includes an organic solvent, a lithium salt, a compound represented by Formula 1, and a compound represented by Formula 2, wherein, when an amount of the compound represented by Formula 1 is X wt% and an amount of the compound represented by Formula 2 is Y wt % based on a total weight of the non-aqueous electrolyte, X and Y satisfy X+Y ≤ 5 and X ≤ Y,
R1 is an unsaturated hydrocarbon group
n is an integer of 1 or 2, and R2 is hydrogen, an unsubstituted or substituted alkyl group, or an unsubstituted or substituted alkoxy group.-
公开(公告)号:US20240308803A1
公开(公告)日:2024-09-19
申请号:US18273366
申请日:2022-11-10
发明人: Sangsu Ha , Ki Woog Kim
CPC分类号: B65H19/1852 , B65H26/02 , H01M10/0404 , B65H2701/12411 , B65H2701/19
摘要: One aspect of the present disclosure relates to an auto-splicing device for an electrode and an auto-splicing method, and more particularly, to an auto-splicing device for an electrode and an auto-splicing method, which can minimize connection defects between the running electrode and the new electrode, wherein the running electrode and the new electrode connected and supplied to the running electrode are aligned on the basis of their coating lines by using the auto-slicing device.
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公开(公告)号:US20240219476A1
公开(公告)日:2024-07-04
申请号:US18288264
申请日:2022-09-30
发明人: Yeo Kyung Yoon , Jeong Min Lee
IPC分类号: G01R31/392 , G01R31/367 , G01R31/3835
CPC分类号: G01R31/392 , G01R31/3835 , G01R31/367
摘要: A battery life prediction apparatus according to an embodiment disclosed herein includes a processor and memory having programmed thereon instructions that, when executed, are configured to cause the processor to obtain information about a charge end voltage of a battery corresponding to a charge protocol and predict a life of the battery corresponding to the charge protocol based on the information about the charge end voltage of the battery corresponding to the charge protocol.
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5.
公开(公告)号:US20240113336A1
公开(公告)日:2024-04-04
申请号:US18278202
申请日:2022-11-08
发明人: Haeun Kim , Jeongwoo Oh , Chul Haeng Lee
IPC分类号: H01M10/0567 , H01M4/36 , H01M4/525
CPC分类号: H01M10/0567 , H01M4/366 , H01M4/525 , H01M2004/028
摘要: Provided is a non-aqueous electrolyte solution for a lithium secondary battery containing a lithium salt, an organic solvent, and a phosphoric acid-based additive of Formula 1 below, which significantly improves the high temperature stability of the lithium secondary battery:
wherein R is described herein.-
公开(公告)号:US20240106064A1
公开(公告)日:2024-03-28
申请号:US18285811
申请日:2023-01-12
发明人: Gyung-Soo Kang , Jae-Ho Lee , Hun-Hee Lim
IPC分类号: H01M50/342 , H01M50/105 , H01M50/186
CPC分类号: H01M50/3425 , H01M50/105 , H01M50/186
摘要: The present disclosure relates to a secondary battery including an electrode assembly to which an electrode lead is attached; a case accommodating the electrode assembly and defining a sealing portion to seal the electrode assembly in the case; and a lead film surrounding a portion of an outer surface of the electrode lead and interposed between the electrode lead and the sealing portion. The lead film includes a first region configured to be primarily broken during swelling of the battery and a second region configured to be secondarily broken during swelling of the battery.
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公开(公告)号:US20240097126A1
公开(公告)日:2024-03-21
申请号:US18273419
申请日:2022-10-28
发明人: O Jong Kwon , Ki Woong Kim , In Gu An , Min Hyun Kim , Youn Cheol Joe , Jeong Geun Jo
IPC分类号: H01M4/58 , H01M4/04 , H01M4/36 , H01M4/62 , H01M10/052
CPC分类号: H01M4/58 , H01M4/0404 , H01M4/366 , H01M4/623 , H01M10/052 , H01M2004/021
摘要: A manufacturing method of a positive electrode for a lithium secondary battery includes: a step of preparing a positive electrode in which a positive electrode active material layer including a lithium iron phosphate formed on a current collector; and a step of adsorbing an organic solvent to the positive electrode active material layer, the organic solvent including one or more of N-methyl-2-pyrrolidone (NMP), acetone, ethanol, propylene carbonate, ethylmethyl carbonate, ethylene carbonate, and dimethyl carbonate.
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公开(公告)号:US20240217145A1
公开(公告)日:2024-07-04
申请号:US18289065
申请日:2022-12-12
发明人: Chung Hee Lee , Beom Su Kim , Yong Nam Kim , Dong Hyeuk Park
CPC分类号: B29C43/36 , B29C43/52 , B29C2043/3283 , B29C2043/3665 , B29L2031/7146
摘要: A pouch molding apparatus and method involves deforming a pouch so that a larger amount of clearance is secured to increase the capacity of the pouch, thereby improving the pouch molding process to increase the depth and capacity of a pouch cup part. The pouch molding apparatus includes a die and a punch. The die has a die groove recessed therein in a shape configured to mold a pouch. The punch is disposed above the die groove, wherein the punch includes a body part configured to be inserted into the die groove together with a pouch film disposed between the die and the punch, and pressing parts are provided on opposite sides of the body part to press the pouch film toward an inner surface of the die groove.
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公开(公告)号:US20240091884A1
公开(公告)日:2024-03-21
申请号:US18283254
申请日:2022-04-19
发明人: Jung Hoon Lee , Seok Jin Kim
摘要: A device for inspecting a welded state between a tab, which protrudes from a plurality of electrodes stacked with a separator therebetween, and a lead welded to the tab. The device for inspecting a welded state may include a pair of tab probes, which are in contact with the tab and spaced apart from each other in a width direction of the tab, and a pair of lead probes which are in contact with the lead and spaced apart from each other in a width direction of the lead. Related methods for inspecting the welded state between a tab and a lead thereby are provided.
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公开(公告)号:US20230420724A1
公开(公告)日:2023-12-28
申请号:US18039438
申请日:2022-11-02
发明人: Byung Kwun Kang
IPC分类号: H01M10/04 , H01M50/342
CPC分类号: H01M10/0468 , H01M50/3425
摘要: A battery cell pressure jig of an embodiment of the present invention includes a first pressure block and a second pressure block pressurizing both sides of a battery cell with the battery cell interposed therebetween. The first pressure block and the second pressure block each includes: a flat-type pressure plate that presses the battery cell; a support plate supporting the pressure plate; hinge members provided at the upper edges of the pressure plate and the support plate so that the pressure plate and the support plate are mutually foldable; and an elastic member coupled to the lower end of either the pressure plate or the support plate. The battery cell pressure jig may sequentially press the battery cell from the lower portion to the upper portion.
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