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71.发明申请公开(公告)号：US20220013852A1
公开(公告)日：2022-01-13
申请号：US17295192
申请日：2019-03-20
IPC分类号： H01M50/325
摘要： When the pressure in the battery case is increased, the gas discharge flow rate is secured sufficiently. This battery case (30) is a battery case in which a battery (2) is housed in a housing (10). The battery case (30) includes a gas discharge mechanism (G). The gas discharge mechanism (G) includes a gas discharge port (51) that opens in a wall plate (43) that covers a periphery of the housing (10), and a lid part (35m). The lid part (35m) is disposed to cover the gas discharge port (51) from inside the wall plate (43), and is fixed on the housing (10) side.
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公开(公告)号：US20200350529A1
公开(公告)日：2020-11-05
申请号：US16642591
申请日：2018-08-13
发明人： Masato Ono , Keigo Atobe , Hatsuna Seshita , Aika Kimura
摘要： A stacked battery includes: a power generation element in which a plurality of electrodes and a plurality of separators are alternately stacked; an exterior member in which the power generation element is accommodated together with an electrolytic solution; and a bonding portion configured to bond an outermost layer of the power generation element and an inner side of the exterior member, wherein when the power generation element is viewed in a plan view from a stacking direction in which the electrodes and the separators are stacked, the bonding portion is located outside an effective region contributing to power generation in the power generation element and has a shape in which an outer peripheral edge of the bonding portion is continuous over an entire circumference of the bonding portion.
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公开(公告)号：US10770716B2
公开(公告)日：2020-09-08
申请号：US16308136
申请日：2016-06-08
IPC分类号： H01M4/131 , H01M4/13 , H01M4/133 , H01M4/134 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/056 , H01M10/0566 , H01M10/0567 , H01M10/0569 , H01M10/052 , H01M4/02 , H01M10/42
摘要： A flat stacked type non-aqueous electrolyte secondary battery includes: a positive electrode comprising a a positive electrode active material formed on a surface of a positive electrode current collector, a negative electrode comprising a negative electrode active material formed on a surface of a negative electrode current collector, and an electrolyte layer, wherein a ratio of a rated capacity to a pore volume of the negative electrode active material layer is 1.12 Ah/cc or more, a ratio of a battery area to a rated capacity is 4.0 cm2/Ah or more, and a rated capacity is 30 Ah or more, and the electrolyte layer contains an electrolyte solution containing an electrolyte salt dissolved and a value obtained by dividing a weight of an electrolyte salt in pores in the negative electrode active material layer by a weight of the negative electrode active material is 0.031 or more.
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公开(公告)号：US10763461B2
公开(公告)日：2020-09-01
申请号：US13885572
申请日：2011-10-05
申请人： Miyuki Terado
发明人： Miyuki Terado
摘要： The present invention relates to a secondary battery in which a stacked electrode assembly having a cathode, an anode and a separator is accommodated together with an electrolytic solution between exterior members. In the present invention, the secondary battery has a plurality of joint parts at which the outer peripheral portion of the separator is joined with the exterior members and a holding part formed at least between the joint parts so as to hold therein the electrolytic solution, wherein a sum of perimeters of the joint parts is longer than a perimeter of a rectangle of minimum area enclosing therein all of the joint parts. In this configuration, it is possible to refill the stacked electrode assembly with the electrolytic solution and protect the joint parts from breakage while preventing displacement of the stacked electrode assembly in the secondary battery.
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公开(公告)号：US10756342B2
公开(公告)日：2020-08-25
申请号：US14966386
申请日：2015-12-11
发明人： Sohei Suga , Koichi Shinohara , Kenji Ohara , Toshihiro Horiuchi , Masanori Aoyagi , Junko Nishiyama
IPC分类号： H01M4/505 , H01M4/36 , H01M4/525 , H01M4/587 , H01M10/0525
摘要： A lithium ion secondary battery includes: a negative electrode having a carbon-based negative electrode material containing graphite particles and amorphous carbon particles; and a positive electrode including a lithium composite oxide. The lithium composite oxide is represented by a general formula: LixNiyMnzCo(1-y-z)O2, where x is a numeral of 1 or more and 1.2 or less, and y and z are positive numerals satisfying the relation of y+z
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公开(公告)号：US20200176809A1
公开(公告)日：2020-06-04
申请号：US16625978
申请日：2018-06-25
发明人： Shin Tanaka , Kenji Ohara , Satoshi Nagashima , Jiro Iriyama
IPC分类号： H01M10/0525 , H01M4/36 , H01M2/16 , H01M4/02
摘要： Present disclosure provides a lithium ion secondary battery element in which a positive electrode including a positive electrode active material layer formed by applying a positive electrode active material mixture, a separator, and a negative electrode including a negative electrode active material layer formed by applying a negative electrode active material mixture are stacked.
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公开(公告)号：US10608444B2
公开(公告)日：2020-03-31
申请号：US16095082
申请日：2017-09-19
发明人： Kazumi Kaneko
摘要： The present invention reduces the possibility that parallel connection is not allowed at the time of reactivation. A plurality of battery packs (11, 12) connected in parallel each include a chargeable-dischargeable battery string (21, 22), relays (41, 42) provided in series to the battery string (21, 22), and a detection unit that detects the state of the battery string. A master control unit (34) that controls the battery packs turns off the relays of the battery packs when a circulating current falls below a cancel-allowing current and, on the basis of a result obtained by the detection unit, makes the cancel-allowing current smaller as the SOC-equivalent value of the battery pack into which the largest amount of the circulating current flows increases.
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公开(公告)号：US10573865B2
公开(公告)日：2020-02-25
申请号：US14007872
申请日：2012-04-06
摘要： A joining device includes a pair of cylindrical rotors 210 and 220, holding surfaces 211 and 221 of which for holding a pair of sheet-like members 30, respectively, have a width smaller than a width of the pair of sheet-like members 30. The joining device has a conveyance unit 200 which superimposes the pair of sheet-like members sequentially while conveying the pair of sheet-like members, by rotating the pair of cylindrical rotors, and joining units (first joining units 300) which join portions of the superimposed pair of sheet-like members to each other sequentially, the portions protruding beyond the holding surfaces of the cylindrical rotors.
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79.发明申请公开(公告)号：US20200044280A1
公开(公告)日：2020-02-06
申请号：US16529145
申请日：2019-08-01
发明人： Akihiro Modeki , Yuji Tanjo
IPC分类号： H01M10/0525 , H01M4/66 , H01M4/04
摘要： A lithium ion secondary battery includes: a power generating element including an electrolyte solution, and an electrode stack including a positive electrode including a positive electrode active material layer and a positive electrode current collector foil and a negative electrode including a negative electrode active material layer and a negative electrode current collector foil, the positive electrode and the negative electrode being stacked with a separator interposed therebetween; and a package that internally seals this power generating element. The negative electrode current collector foil is a copper foil, and the negative electrode has a tensile strength of 17.6 N/mm2 or more and 20.0 N/mm2 or less.
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公开(公告)号：US10431852B2
公开(公告)日：2019-10-01
申请号：US15302435
申请日：2015-03-31
发明人： Takehiro Maeda , Takamitsu Saito , Azusa Matsuo , Ami Oume , Yoshiaki Nitta
IPC分类号： H01M10/0585 , H01M2/02 , H01M10/04 , H01M4/131 , H01M4/133 , H01M10/0525 , H01M2/16 , H01M4/505 , H01M4/525 , H01M4/587 , H01M4/62 , H01M4/66 , H01M10/0569 , H01M4/02
摘要： A flat secondary battery has a laminate-type power generation element in which two or more plate-like electrodes are laminated via separators; and a pair of rectangular exterior members defined by long sides and short sides when viewed from a lamination direction of the two or more electrodes that seal the power generation element and an electrolyte solution. At least one exterior member of the pair of the rectangular exterior members comprises: an abutting part including an abutting surface that abuts against an uppermost layer electrode of the two or more electrodes; a sealing part at which the rectangular exterior members overlap each other at an outer circumferential position of the rectangular exterior members; and an extending part that extends from the abutting part to the sealing part, and the flat secondary battery satisfies 1≤LA/LB≤2.
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