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公开(公告)号：US20240322354A1
公开(公告)日：2024-09-26
申请号：US18580060
申请日：2023-04-17
发明人： Won Pill Hwang , Mincheol Choi , Shin Chul Kim , Hyeok Jeong , Sangho Bae
IPC分类号： H01M50/342 , H01M50/105 , H01M50/186 , H01M50/193
CPC分类号： H01M50/3425 , H01M50/105 , H01M50/186 , H01M50/193
摘要： The present disclosure relates to a battery cell and a manufacturing method thereof. The battery cell according to one embodiment of the present disclosure includes an electrode assembly including a cathode, an anode and a separator; and a battery case including a sealing portion that houses the electrode assembly and seals an outer periphery of the electrode assembly, wherein the sealing portion includes a first area, and a second area excluding the first area, and wherein the first area is an area where the crystallinity of the battery case is higher than that of the second area.
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公开(公告)号：US20240322315A1
公开(公告)日：2024-09-26
申请号：US18609336
申请日：2024-03-19
发明人： Hiroshi SEINO , Jeongchull AHN , Sanghyun KIM
IPC分类号： H01M50/193
CPC分类号： H01M50/193
摘要： A lithium battery includes an electrode assembly including a cathode, an anode, and a separator between the cathode and the anode; a battery case surrounding the electrode assembly; and an adhesive layer between the electrode assembly and the battery case, the adhesive layer attaching the electrode assembly and the battery case to each other, wherein the adhesive layer includes an adhesive including a maleimide-modified polyolefin containing two or more acid functional groups.
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公开(公告)号：US20240313308A1
公开(公告)日：2024-09-19
申请号：US18356434
申请日：2023-07-21
发明人： Wenjie ZHAO
IPC分类号： H01M50/15 , H01M50/103 , H01M50/184 , H01M50/188 , H01M50/193 , H01M50/198 , H01M50/342 , H01M50/474 , H01M50/477 , H01M50/486 , H01M50/533 , H01M50/534 , H01M50/557 , H01M50/586 , H01M50/593 , H01M50/627
CPC分类号： H01M50/15 , H01M50/103 , H01M50/184 , H01M50/188 , H01M50/193 , H01M50/198 , H01M50/3425 , H01M50/474 , H01M50/477 , H01M50/486 , H01M50/533 , H01M50/534 , H01M50/557 , H01M50/586 , H01M50/593 , H01M50/627 , H01M2200/20
摘要： A battery cover plate includes an electrode post plate, a hot-melt adhesive film, a cover plate assembly and a busbar. The cover plate assembly defines a first through hole; the electrode post plate and the busbar are located on two sides of the first through hole, a boss is arranged on the busbar, the boss is embedded in the first through hole, one end of the boss is connected with the electrode post plate. With the hot-melt adhesive film covered on the first through hole, the electrode post plate and the hot-melt adhesive film are placed on the first through hole; under the action of thermal pressing, the electrode post plate and the cover plate assembly are thermally fused together; the hot-melt adhesive film can further seal a part of the boss to fix the electrode post plate in a more reliable way.
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公开(公告)号：US12084562B2
公开(公告)日：2024-09-10
申请号：US17416961
申请日：2019-11-25
发明人： Tomokazu Kobayashi , Daisuke Imoda , Shuji Nakano
IPC分类号： H01M50/193 , C08K3/08 , C08K5/098 , C08K9/04 , H01M10/0562 , H01M10/52 , H01M50/141 , H01M50/191 , H01M50/195 , H01M50/197
CPC分类号： C08K9/04 , C08K3/08 , C08K5/098 , H01M10/0562 , H01M10/52 , H01M50/141 , H01M50/191 , H01M50/193 , H01M50/195 , H01M50/197 , C08K2003/0806 , H01M2300/0068
摘要： A sealer for use in an all-solid-state secondary battery provided with a sulfur-containing solid electrolyte, characterized in that the sealer contains a resin and a particulate fatty acid metal salt dispersed in the resin, and the particulate fatty acid metal salt is a particulate fatty acid metal salt in which a fatty acid is coordinated on the surfaces of the metal particles having a mean particle diameter of not more than 1000 nm. The all-solid-state secondary battery is capable of suppressing the generation of the hydrogen sulfide.
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公开(公告)号：US20240258567A1
公开(公告)日：2024-08-01
申请号：US18436508
申请日：2024-02-08
发明人： Yurika UENO , Kohei WATANABE , Jun YAGISAWA
IPC分类号： H01M10/0567 , H01M4/02 , H01M4/50 , H01M4/62 , H01M4/76 , H01M10/0568 , H01M10/0569 , H01M50/193
CPC分类号： H01M10/0567 , H01M4/502 , H01M4/623 , H01M4/625 , H01M4/76 , H01M10/0568 , H01M10/0569 , H01M50/193 , H01M2004/021 , H01M2004/028 , H01M2300/0037
摘要： A non-aqueous electrolytic solution battery is provided and including a positive electrode containing a positive electrode mixture containing manganese dioxide, a negative electrode containing a lithium element, and a non-aqueous electrolytic solution, in which in an X-ray photoelectron spectroscopy (XPS) spectrum of the positive electrode mixture, a peak intensity ratio I2/I1 of Mn2p3/2 satisfies a following formula (1)
0.3
≦
I
2
I
1
≦
0.55
(
1
)
in the formula (1), I1 represents a peak intensity at a binding energy of 642 eV, and I2 represents a peak intensity at a binding energy of 640 eV.-
公开(公告)号：US20240222755A1
公开(公告)日：2024-07-04
申请号：US18527239
申请日：2023-12-02
发明人： Nok Jung Song , Hee Sik Han , Jee Eun Jang , Yoohan Kim , Doohee Lee
IPC分类号： H01M50/197 , H01M50/105 , H01M50/124 , H01M50/186 , H01M50/193 , H01M50/198
CPC分类号： H01M50/197 , H01M50/105 , H01M50/124 , H01M50/186 , H01M50/193 , H01M50/198
摘要： Disclosed is a secondary battery pouch film including a layered structure wherein at least an outer layer, a barrier layer, and a sealant layer are structured in that order, wherein the sealant layer includes an extrusion (EC) layer and a polypropylene (PP) layer below the extrusion (EC) layer, wherein a thickness ratio of the polypropylene (PP) layer to the sealant layer is more than 0.5, wherein an upper yield strength (N/mm2) in an MD direction of the sealant layer is 17.50 to 19.99, and an upper yield strength (N/mm2) in a TD direction thereof is 17.00 to 19.99, wherein a glass transition temperature (Tg) of the sealant layer is −20° C. to −10° C. The pouch film not only has excellent sealing strength at ambient temperature and high temperature, but also has excellent sealing strength maintenance at ambient temperature and especially at high temperature.
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公开(公告)号：US20240170776A1
公开(公告)日：2024-05-23
申请号：US18475211
申请日：2023-09-27
申请人： Prime Planet Energy & Solutions, Inc. , TOYOTA JIDOSHA KABUSHIKI KAISHA , PRIMEARTH EV ENERGY CO., LTD.
发明人： Tsuyoshi EHARA , Yozo UCHIDA , Yuki SATO , Syoichi TSUCHIYA , Masataka ASAI , Tsuyoshi ASANO , Masahiro UCHIMURA , Takashi TAKIMOTO , Shigeru MATSUMOTO , Yasuaki NAGANO
IPC分类号： H01M50/188 , H01M50/103 , H01M50/176 , H01M50/193
CPC分类号： H01M50/188 , H01M50/103 , H01M50/176 , H01M50/193 , H01G11/82
摘要： A method for producing a power storage device includes an insert-molding step in which a resin member is formed by insert molding with a terminal member inserted in an insertion hole of a case member. This insert-molding step is performed using a molding mold that includes a top-surface contact portion which is to face and tightly contact with a terminal top surface of the terminal member, an inner annular flat portion and an outer annular flat portion to form a frame top surface of the resin member, and an annular protruding portion to form an annular groove of the resin member.
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公开(公告)号：US20240154272A1
公开(公告)日：2024-05-09
申请号：US18280009
申请日：2022-10-11
发明人： Gyung-Soo Kang , Dae-Woong Song , Jae-Ho Lee , Ji-Young Hwang
IPC分类号： H01M50/557 , H01M50/105 , H01M50/178 , H01M50/186 , H01M50/193 , H01M50/578 , H01M50/581 , H01M50/586 , H01M50/59
CPC分类号： H01M50/557 , H01M50/105 , H01M50/178 , H01M50/186 , H01M50/193 , H01M50/578 , H01M50/581 , H01M50/586 , H01M50/59 , H01M2200/10 , H01M2200/20
摘要： A secondary battery according to an embodiment of the present disclosure includes an electrode assembly to which an electrode lead is attached; a case accommodating the electrode assembly so that a portion of the electrode lead is exposed to the outside; a sealing portion formed in the case to seal the electrode assembly; and a lead film covering a portion of an outer surface of the electrode lead and interposed between the electrode lead and the sealing portion, wherein the electrode lead includes a first region not corresponding to the lead film and exposed to the outside of the case, a second region corresponding to the lead film, and a third region not corresponding to the lead film and not exposed to the outside of the case, wherein a separation groove may be located in the third region.
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公开(公告)号：US20240145857A1
公开(公告)日：2024-05-02
申请号：US17914105
申请日：2021-04-01
发明人： Shinji HAYASHI , Yoichi MOCHIZUKI
IPC分类号： H01M50/375 , H01M50/178 , H01M50/186 , H01M50/193 , H01M50/198 , H01M50/342
CPC分类号： H01M50/375 , H01M50/186 , H01M50/193 , H01M50/198 , H01M50/342 , H01M50/178 , H01M2200/10
摘要： An adhesive film for a metal terminal, which is to be interposed between a metal terminal electrically connected to an electrode of a power storage device element and a power storage device packaging material for sealing the power storage device element, wherein the adhesive film for a metal terminal has a laminate sequentially including a first polyolefin layer disposed on the metal terminal side, a base material, and a second polyolefin layer disposed on the power storage device packaging material side, at least one of the first polyolefin layer and the second polyolefin layer has a melting peak temperature of 105° C. or more and 130° C. or less, and the base material has a surface hardness of 15 N/mm2 or more, as measured in an environment at a temperature of 110° C.
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10.发明公开公开(公告)号：US20240088531A1
公开(公告)日：2024-03-14
申请号：US18274542
申请日：2022-09-26
发明人： Mi-Na Kim , Yong-Su Choi , Gyung-Soo Kang
IPC分类号： H01M50/562 , H01M4/62 , H01M50/105 , H01M50/178 , H01M50/186 , H01M50/193 , H01M50/571 , H01M50/586
CPC分类号： H01M50/562 , H01M4/622 , H01M50/105 , H01M50/178 , H01M50/186 , H01M50/193 , H01M50/571 , H01M50/586
摘要： The present disclosure relates to an electrode lead for an electrochemical device, including a nickel plating layer disposed on the surface of a metallic terminal, having a surface irregularity structure on the nickel plating layer, and including a polar group-containing coating layer. The present disclosure also relates to an electrochemical device including the electrode lead. The electrode lead for an electrochemical device provides increased binding force between the electrode lead and the lead film by increasing the contact area between the electrode lead and the lead film, while not causing damages upon the surface of the electrode lead.
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