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公开(公告)号：US20230010746A1
公开(公告)日：2023-01-12
申请号：US17783484
申请日：2020-12-21
发明人： Han Young Lee
IPC分类号： H01M10/04 , H01M50/466
摘要： An electrode assembly according to an embodiment of the present invention for achieving the above object includes: a first electrode formed in the form of a single sheet and repetitively in-folded and out-folded at a predetermined interval; a second electrode provided in plurality and respectively interposed in spaces formed by folding the first electrode; a separator formed in the form of a single sheet and interposed between the first electrode and the second electrode so as to be repetitively in-folded and out-folded at a predetermined interval together with the first electrode; and a cover part configured to cover at least portions of an area, on which the separator is out-folded and an exposed surface, which is exposed to the outside together with the second electrode.
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2.发明公开公开(公告)号：US20240079752A1
公开(公告)日：2024-03-07
申请号：US18272708
申请日：2022-11-23
发明人： Han Young Lee
IPC分类号： H01M50/682 , H01M10/052 , H01M10/058 , H01M50/609
CPC分类号： H01M50/682 , H01M10/052 , H01M10/058 , H01M50/609 , H01M2200/10
摘要： A lithium secondary battery includes: an electrolyte replenishing unit filled with a preliminary electrolyte inside a packaging member; and a rupture member disposed adjacent to the electrolyte replenishing unit. The rupture member is deformed by a temperature change to form a hole in the packaging member so that the preliminary electrolyte inside the electrolyte replenishing unit can be injected.
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公开(公告)号：US11870039B2
公开(公告)日：2024-01-09
申请号：US17770828
申请日：2021-02-26
发明人： Han Young Lee
IPC分类号： H01M10/00 , H01M10/0583 , H01M10/04
CPC分类号： H01M10/0583 , H01M10/0454 , H01M10/0459
摘要： An electrode assembly according to an embodiment of the present invention for achieving the above object comprises: a first electrode formed in the form of a single sheet and repetitively in-folded and out-folded at a predetermined interval; a second electrode formed into a plurality of pieces and respectively interposed in spaces formed by folding the first electrode; and a separator formed in the form of a single sheet and interposed between the first electrode and the second electrode so as to be repetitively in-folded and out-folded at a predetermined interval together with the first electrode, wherein the first electrode is a single-sided electrode in which a first electrode active material is applied to only one surface of a first electrode collector, and the second electrode is a double-sided electrode in which a second electrode active material is applied to all both surfaces of a second electrode collector.
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公开(公告)号：US20230278268A1
公开(公告)日：2023-09-07
申请号：US17801706
申请日：2021-04-29
发明人： Han Young Lee
IPC分类号： B29C43/36 , H01M50/105
CPC分类号： B29C43/36 , H01M50/105 , B29C2043/366 , B29C2043/3205 , B29C2043/3602
摘要： The present invention relates to a pouch forming apparatus comprising: a die, in which forming grooves are formed with a partition wall therebetween; and a punch member provided with a punch, which is configured to be inserted into each of the forming grooves to press the pouch film to form a pair of accommodation grooves in the pouch film, wherein the forming groove comprises a vertical space disposed above a forming groove bottom part connected to the partition wall and an inclined space connected to the vertical space and formed by providing an inner wall facing the partition wall, the inner wall defining an inclined surface .
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公开(公告)号：US20220384851A1
公开(公告)日：2022-12-01
申请号：US17770828
申请日：2021-02-26
发明人： Han Young Lee
IPC分类号： H01M10/0583 , H01M10/04
摘要： An electrode assembly according to an embodiment of the present invention for achieving the above object comprises: a first electrode formed in the form of a single sheet and repetitively in-folded and out-folded at a predetermined interval; a second electrode formed into a plurality of pieces and respectively interposed in spaces formed by folding the first electrode; and a separator formed in the form of a single sheet and interposed between the first electrode and the second electrode so as to be repetitively in-folded and out-folded at a predetermined interval together with the first electrode, wherein the first electrode is a single-sided electrode in which a first electrode active material is applied to only one surface of a first electrode collector, and the second electrode is a double-sided electrode in which a second electrode active material is applied to all both surfaces of a second electrode collector.
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6.发明公开公开(公告)号：US20230307807A1
公开(公告)日：2023-09-28
申请号：US17793825
申请日：2021-06-24
发明人： Han Young Lee
IPC分类号： H01M50/682 , H01M50/105 , H01M10/42 , H01M50/211
CPC分类号： H01M50/682 , H01M50/105 , H01M10/425 , H01M50/211
摘要： The present invention relates to a pouch-shaped battery cell configured such that an electrolytic solution depleted during charging and discharging of the pouch-shaped battery cell is replenished, whereby lifespan characteristics of the pouch-shaped battery cell are improved, wherein the pouch-shaped battery cell includes a battery case made of a laminate sheet, an electrode assembly received in the battery case, an inner pouch located on the outer surface of the electrode assembly, the inner pouch having an electrolytic solution for replenishment received therein, and a penetration member configured to penetrate the inner pouch in order to discharge the electrolytic solution for replenishment, wherein the penetration member is deformed to discharge the electrolytic solution for replenishment received in the inner pouch when pressure in the battery case increases.
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7.发明公开公开(公告)号：US20230150176A1
公开(公告)日：2023-05-18
申请号：US18009844
申请日：2021-01-19
发明人： Han Young Lee
IPC分类号： B29C43/02 , H01M50/124 , B29C43/10 , B29C43/16 , B29C43/36 , B29C53/04 , B29C53/38 , B29C65/00 , H01M50/105
CPC分类号： B29C43/021 , H01M50/124 , B29C43/10 , B29C43/16 , B29C43/3607 , B29C53/04 , B29C53/382 , B29C65/00 , B29C66/433 , H01M50/105 , B29C2043/023 , B29C2043/108 , B29L2031/7146
摘要： An apparatus for molding a pouch, the pouch having a first seating part and a second seating part, that are connected to each other, the pouch being configured such that when an electrode assembly is mounted and sealed therein, the first seating part and the second seating part are folded to cover top and bottom surfaces of the electrode assembly, and the first seating part and the second seating part are in contact with each other. The apparatus includes, a lower mold in which a first groove recessed by a predetermined depth from a top surface thereof is formed, and a second groove is additionally recessed from a bottom surface of the first grove; and an upper mold on which a flat portion is formed on one surface thereof, which is inserted into the first groove, and a protrusion inserted into the second groove protrudes from the flat portion.
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公开(公告)号：US20230102148A1
公开(公告)日：2023-03-30
申请号：US17789574
申请日：2021-09-29
发明人： Su Hyun Yun , Bum Young Jung , Sook Yun , Han Young Lee
IPC分类号： H01M10/0569 , H01M10/0567 , H01M10/0568 , H01M10/0525
摘要： A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte includes a lithium salt, a non-aqueous solvent, a compound represented by Formula 1, and a compound represented by Formula 2, wherein the compound represented by Formula 1 and the compound represented by Formula 2 are included in a volume ratio of 1:0.1 to 1:1.5. Also, a lithium secondary battery including the non-aqueous electrolyte has improved high-temperature storage safety.
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公开(公告)号：US20230017099A1
公开(公告)日：2023-01-19
申请号：US17911843
申请日：2020-11-16
发明人： Han Young Lee
IPC分类号： H01M50/211 , H01M50/578 , H01M50/183 , H01M50/533 , H01M10/04
摘要： A secondary battery may include an electrode assembly formed by alternately stacking an electrode and a separator; a battery case; a plurality of electrode tabs, each of which protrudes from the electrode assembly; a plurality of electrode leads, each of which has one end connected to the electrode tab and the other end protruding outward; a piezoelectric element which is disposed to the outside of a cup portion of the battery case that accommodates the electrode assembly and which, when the battery case expands in volume, receives pressure and supplies electric power to the outside; and a short-circuit inducing part which has a wire shape and both ends respectively positioned on sealing portions of the battery case that seal the electrode leads, wherein, when the electric power is applied from the piezoelectric element, both the ends respectively extend toward the electrode leads and come into contact with the electrode leads.
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公开(公告)号：US20220302442A1
公开(公告)日：2022-09-22
申请号：US17633805
申请日：2021-05-03
发明人： Han Young Lee , Bum Young Jung , Su Hyun Yun , Dong Sik Yoon , Suk Woo Lee
IPC分类号： H01M4/36 , H01M4/04 , H01M4/139 , H01M50/531 , H01M4/62
摘要： Provided is a manufacturing method of an electrode, wherein productivity is improved by preventing a short circuit forming between a positive electrode and negative electrode even when an overhang occurs during manufacture of an electrode assembly. The present technology includes a step of forming an electrode active material layer and a resistance layer, by applying a resistance layer composition including inorganic additives and an electrode slurry, including an electrode active material on a current collector; a step of drying the current collector in which the electrode active material layer and resistance layer are formed; and a step of forming the electrode in which an electrode tab is formed at one end by notching the dried current collector and the method of forming the electrode active material layer and resistance layer is performed by one slot die in which two discharge ports are formed.
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