公开(公告)号：US20240088446A1

公开(公告)日：2024-03-14

申请号：US18455626

申请日：2023-08-25

申请人： Prime Planet Energy & Solutions, Inc.

发明人： Yukitoshi UEHARA

IPC分类号： H01M10/0569 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62

CPC分类号： H01M10/0569 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M2004/028 ,  H01M2220/20

摘要： Provided is a nonaqueous electrolyte secondary battery having both high output characteristics and high capacity deterioration resistance in repetitive charge and discharge with a large current. A nonaqueous electrolyte secondary battery disclosed here includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a positive electrode current collector and a positive electrode active material layer supported by the positive electrode current collector. The positive electrode active material layer contains a positive electrode active material and carbon nanotubes. The nonaqueous electrolyte contains a nonaqueous solvent and a supporting electrolyte. The nonaqueous solvent contains 2 to 9 volume % of a carboxylate ester that has 6 or less carbon atoms and may be optionally substituted by a fluorine atom.

公开(公告)号：US20240088441A1

公开(公告)日：2024-03-14

申请号：US18243595

申请日：2023-09-07

申请人： PRIMEARTH EV ENERGY CO., LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  PRIME PLANET ENERGY & SOLUTIONS, INC.

发明人： Gaku OGURA ,  Katsuya TANAKA

IPC分类号： H01M10/0567 ,  H01M10/04 ,  H01M50/609

CPC分类号： H01M10/0567 ,  H01M10/0431 ,  H01M10/049 ,  H01M50/609

摘要： A non-aqueous electrolyte rechargeable battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The negative electrode has a sodium concentration of greater than 532 ppm and less than 71100 ppm. The non-aqueous electrolyte rechargeable battery includes a LiBOB equivalent. The LiBOB equivalent is lithium bis(oxalato)borate in the non-aqueous electrolyte or a substance formed when the lithium bis(oxalato)borate reacts with another substance. The non-aqueous electrolyte has a hypothetical concentration of the LiBOB equivalent of 0.35 wt % or greater and 0.56 wt % or less when an amount of the LiBOB equivalent is converted into a weight of the lithium bis(oxalato)borate.

公开(公告)号：US20240088427A1

公开(公告)日：2024-03-14

申请号：US18462360

申请日：2023-09-06

申请人： Prime Planet Energy & Solutions, Inc.

发明人： Taisuke ISEDA ,  Akira NISHIDA ,  Koji NIHOMMATSU

IPC分类号： H01M10/04 ,  H01M10/0587 ,  H01M50/403

CPC分类号： H01M10/0431 ,  H01M10/0468 ,  H01M10/0587 ,  H01M50/403 ,  H01M50/461

摘要： Provided is a technology which can produce a battery comprising a wound electrode assembly including separators having adhesive layers, with high productivity. In one suitable aspect of the method of manufacturing a battery as disclosed herein, the method comprises a first winding step of bringing a first separator and a second separator into contact with a winding core and winding the first separator and the second separator around the winding core; a second adhesive layer forming step of forming a second adhesive layer in the second separator; a first adhesive layer forming step of forming a first adhesive layer in the first separator; a second winding step of winding a positive electrode sheet and an negative electrode sheet around the winding core along with the first separator and the second separator; and a pressing step of pressing, after the second winding step, the first separator, the positive electrode sheet, the second separator, and the negative electrode sheet which have been wound.

公开(公告)号：US11929503B2

公开(公告)日：2024-03-12

申请号：US17400180

申请日：2021-08-12

申请人： Prime Planet Energy & Solutions, Inc.

发明人： Yuji Yamamoto

IPC分类号： H01M4/583 ,  H01M4/36 ,  H01M4/64 ,  H01M10/02 ,  H01M4/02

CPC分类号： H01M4/583 ,  H01M4/366 ,  H01M4/64 ,  H01M10/02 ,  H01M2004/028

摘要： Provided is a positive electrode for a secondary battery in which carbon nanotubes are used, of which an initial resistance is small, and that suppresses an increase in resistance when charging and discharging are repeated. The positive electrode for a secondary battery disclosed herein includes a positive-electrode current collector and a positive-electrode active material layer provided on the positive-electrode current collector. The positive-electrode active material layer contains a positive-electrode active material and carbon nanotubes, and substantially does not contain a resin binder. The positive-electrode active material layer includes a layer-like region that is in contact with the positive-electrode current collector, and a region other than the layer-like region. Both of the layer-like region and the region other than the layer-like region contain carbon nanotubes. A content of carbon nanotubes in the layer-like region is larger than a content of carbon nanotubes in the region other than the layer-like region.

公开(公告)号：US20240079745A1

公开(公告)日：2024-03-07

申请号：US18461986

申请日：2023-09-06

申请人： Prime Planet Energy & Solutions, Inc.

发明人： Shota YAMAMOTO

IPC分类号： H01M50/564 ,  H01M50/557

CPC分类号： H01M50/564 ,  H01M50/557

摘要： Provided is a technique that enhances a reliability of a connecting part with a terminal and another conductive member. According to the herein disclosed technique, a battery comprises a terminal which comprises a first conductive member and with a second conductive member electrically connected to the first conductive member, and a third conductive member connected to the terminal. The second conductive member includes a crimp part at one of end parts, and a positioning part at an outer surface of the other one of end parts. The crimp part is crimped to the third conductive member. The first conductive member has a through-hole. When viewed along a central axis direction of the through-hole, the positioning part is provided to overlap with the through-hole.

公开(公告)号：US20240079741A1

公开(公告)日：2024-03-07

申请号：US18233629

申请日：2023-08-14

申请人： PRIMEARTH EV ENERGY CO., LTD. ,  PRIME PLANET ENERGY & SOLUTIONS, INC. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Keitaro MACHIDA ,  Tomoki MIZUNO ,  Koichi TANIMOTO

IPC分类号： H01M50/553 ,  H01M50/184 ,  H01M50/188

CPC分类号： H01M50/553 ,  H01M50/184 ,  H01M50/188

摘要： In a battery, a terminal member includes: a columnar portion; a head portion, outside an outer casing, having a larger diameter than a through hole of a lid; and an umbrella-shaped portion, more inside than a current collecting member, having a larger diameter than a through hole of the current collecting member to closely contact an inside surface thereof. A gasket includes: a plate-shaped portion between the lid and the head portion; and a cylindrical portion between a wall surface of the through hole of the lid and the columnar portion. An insulator includes: a plate-shaped portion between the lid and the current collecting member; and a cylindrical portion between the wall surface of the through hole of the lid and the columnar portion. Leading ends of the cylindrical portions close contact each other between the wall surface of the through hole of the lid and the columnar portion.

公开(公告)号：US20240079696A1

公开(公告)日：2024-03-07

申请号：US18352245

申请日：2023-07-14

申请人： Prime Planet Energy & Solutions, Inc.

发明人： Haruhiko YAMAMOTO

IPC分类号： H01M50/169 ,  H01M10/04

CPC分类号： H01M50/169 ,  H01M10/049 ,  H01M50/159

摘要： A power storage device manufacturing method is provided. A closing plate used in a closing process includes an outer peripheral edge portion of a rectangular annular shape, which includes a pair of closing long-side portions arranged in parallel to each other, a pair of closing short-side portions arranged in parallel to each other, and four closing corner portions of circular arcuate shape connecting the long-side portions and the short-side portions. The outer peripheral edge portion further includes an outer circumferential end face located on an outermost side of an outer circumferential surface of the closing plate extending in parallel to a thickwise direction of the closing plate. In the outer circumferential end face, a length of a corner-portion end face included in the closing corner portion is shorter in the thickwise direction than a length of a long-side end face included in a closing long-side portion.

公开(公告)号：US11923560B2

公开(公告)日：2024-03-05

申请号：US17364893

申请日：2021-07-01

申请人： Prime Planet Energy & Solutions, Inc.

发明人： Daiki Watanabe ,  Yu Matsui ,  Akira Nishida

IPC分类号： H01M50/46 ,  H01M10/0525

CPC分类号： H01M50/461 ,  H01M10/0525

摘要： A secondary battery includes: an electrode plate including a main body portion and an electrode terminal portion protruding from the main body portion along a first direction; and a separator adhered to the electrode plate, wherein the main body portion of the electrode plate includes a central region located in a vicinity of a center in the first direction, a first region located on a side close to the electrode terminal portion with respect to the central region in the first direction, and a second region located on a side opposite to the first region with respect to the central region in the first direction, and adhesion strength per unit area between the electrode plate and the separator in the first region is higher than adhesion strength per unit area between the electrode plate and the separator in the second region.

公开(公告)号：US11909231B2

公开(公告)日：2024-02-20

申请号：US17808222

申请日：2022-06-22

申请人： PRIME PLANET ENERGY & SOLUTIONS, INC.

发明人： Atsushi Sugihara ,  Shizuka Masuoka ,  Kodai Nagano

IPC分类号： H02J50/90 ,  H02J50/10 ,  H02J50/00

CPC分类号： H02J50/90 ,  H02J50/005 ,  H02J50/10

摘要： A charging pad includes a side surface on which a charged terminal device is to be placed face to face. The side surface includes a protruding flat surface portion that is raised from a peripheral edge portion, a power transfer coil that is incorporated in a raised region of the protruding flat surface portion, and a holding mechanism that allows the charged terminal device at a predetermined position with respect to the power transfer coil.

公开(公告)号：US20240039122A1

公开(公告)日：2024-02-01

申请号：US18359872

申请日：2023-07-27

申请人： Prime Planet Energy & Solutions, Inc.

发明人： Taisuke ISEDA ,  Akira NISHIDA

IPC分类号： H01M50/46 ,  H01M50/636 ,  H01M50/342 ,  H01M4/525 ,  H01M4/62

CPC分类号： H01M50/461 ,  H01M50/636 ,  H01M50/342 ,  H01M4/525 ,  H01M4/621

摘要： A battery disclosed herein includes an electrode body including a positive electrode including a positive electrode active material layer, a negative electrode, and a separator. The separator includes an adhesive layer on a surface that faces the positive electrode. The adhesive layer includes a first formation region provided so as to face the positive electrode active material layer, and a second formation region provided so as to protrude outward, in an up-down direction or a long side direction of the battery, relative to one end part of the positive electrode active material layer. The first formation region has smaller weight per area than the second formation region.