公开(公告)号：US11121365B2

公开(公告)日：2021-09-14

申请号：US16361006

申请日：2019-03-21

Applicant: BASF TODA BATTERY MATERIALS LLC ,  GS YUASA INTERNATIONAL LTD.

Inventor： Taisei Inoue ,  Daisuke Nishikawa ,  Manabu Yamamoto ,  Katsuya Inoue

IPC: H01M4/36 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/525 ,  C01G53/00 ,  H01M4/02

Abstract: When a non-aqueous electrolyte secondary battery in which a positive electrode active material comprising a layered lithium-composite oxide is used for a positive electrode is subjected to charge/discharge under a prescribed condition, in a graph showing the relationship between voltage “V” with discharge during 5th cycle and value dQ/dV from differentiation of battery capacity “Q” with discharge during 5th cycle by voltage “V”, peak intensity ratio “r” represented by the equation: r=|Ic|/(|Ia|+|Ib|+|Ic|) satisfies 0

公开(公告)号：US11114718B2

公开(公告)日：2021-09-07

申请号：US15763543

申请日：2016-08-09

Applicant: GS Yuasa International Ltd.

Inventor： Ryutaro Nishikawa ,  Yuta Kawai ,  Masamitsu Tononishi ,  Shogo Tsuruta

IPC: H01M50/183 ,  H01G11/10 ,  H01G11/82 ,  H01G11/84 ,  H01M50/20 ,  H01M50/124 ,  H01M50/209 ,  H01M50/543 ,  H01M10/0525 ,  H01M10/058 ,  H01M50/116

Abstract: An energy storage apparatus which includes an energy storage device, an outer case, and an adhesive material which is injected between at least one surface out of a first surface and a second surface which are two surfaces of the energy storage device disposed adjacently to each other and an inner surface of the outer case thus making the at least one surface and the inner surface of the outer case adhere to each other by surface adhesion.

公开(公告)号：US20210273219A1

公开(公告)日：2021-09-02

申请号：US17257877

申请日：2019-07-18

Applicant: GS Yuasa International Ltd.

Inventor： Tomonori KAKO ,  Kazuki KAWAGUCHI ,  Shota ITO ,  Jun OYAMA ,  Taisei SEKIGUCHI

IPC: H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/133 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/0525

Abstract: One aspect of the present invention is an energy storage device including a positive electrode containing: first positive active material particles containing a metal element capable of forming a conductive metal oxide; and second positive active material particles not containing the metal element, in which the first positive active material particles include a nickel-cobalt-manganese-containing lithium-transition metal composite oxide containing lithium, nickel, cobalt, and manganese as constituent elements, and the first positive active material particles are larger in median diameter than the second positive active material particles.

公开(公告)号：US11101078B2

公开(公告)日：2021-08-24

申请号：US16415373

申请日：2019-05-17

Applicant: GS Yuasa International Ltd.

Inventor： Masamitsu Tononishi

IPC: H01G11/10 ,  H01M2/10 ,  H01G9/008 ,  H01G11/78 ,  H01G11/82 ,  H01M50/10 ,  H01M50/20 ,  H01M50/50 ,  H01M50/502

Abstract: An energy storage apparatus includes an energy storage device, an outer covering, an end plate which is disposed on a side of the energy storage device, and a binding member which is mounted on the end plate and applies a binding force to the energy storage device. The end plate includes a region where the binding member is mounted, another region which differs from the region and has a higher rigidity than the region, a first plate member which includes the region, and a second plate member which includes a part of the another region. The first plate member is disposed between the energy storage device and the second plate member.

公开(公告)号：US20210257618A1

公开(公告)日：2021-08-19

申请号：US17274668

申请日：2019-09-10

Applicant: GS Yuasa International Ltd.

Inventor： Kenta OGI ,  Fumiya NAKANO ,  Ryosuke SHIMOKAWA ,  Shota ITO ,  Masaki MASUDA ,  Taro YAMAFUKU ,  Kei KUMABAYASHI ,  Akihiko MIYAZAKI

IPC: H01M4/587 ,  H01M50/578 ,  H01M4/133 ,  H01M4/1393 ,  H01G11/32 ,  H01G11/86 ,  H01G11/78

Abstract: An aspect of the present invention is an energy storage device including an electrode assembly that has a negative electrode and a positive electrode, where the negative electrode contains a negative electrode substrate and a negative active material, and has a negative active material layer disposed in an unpressed shape along at least one surface of the negative electrode substrate, the negative active material includes solid graphite particles as a main component, and the solid graphite particles have an aspect ratio of 1 or more and 5 or less.

公开(公告)号：US11081723B2

公开(公告)日：2021-08-03

申请号：US15760929

申请日：2016-09-16

Applicant: GS Yuasa International Ltd.

Inventor： Kenji Kawate ,  Takao Maki ,  Takeshi Kawahara

IPC: H01M10/0525 ,  H01M10/0587 ,  H01M10/04 ,  H01G11/78 ,  H01M50/10 ,  H01M50/40 ,  H01M50/147 ,  H01M50/463 ,  H01M50/531 ,  H01M50/543 ,  H01M4/38 ,  H01M4/505 ,  H01M4/02

Abstract: An energy storage device includes: an electrode body including curved portions formed by winding an electrode; a container in which the electrode body is accommodated; and a cover plate structure including a cover plate closing the container. The electrode body is accommodated in the container while one end portion in a winding axis direction of the electrode body faces the cover plate structure. The energy storage device includes spacers (side spacers) that are attached to curved portions, and one end portion of the spacer abuts on a part of the cover plate structure.

公开(公告)号：US11079440B2

公开(公告)日：2021-08-03

申请号：US16618475

申请日：2018-05-29

Applicant: GS Yuasa International Ltd.

Inventor： Yuichi Ikeda ,  Nan Ukumori

IPC: H02J7/00 ,  G01R31/3842 ,  H01M10/42 ,  H01M10/48

Abstract: A management device is provided with an acquiring unit for acquiring the amount of variation between the voltage of a power storage element when conduction of power is suspended from a state in which power is being conducted to the power storage element and the voltage when a period has elapsed, and a determination unit for determining whether the amount of variation is included in a second range that corresponds to a first range in which the voltage difference between each power storage amount-voltage characteristic during charging and discharging for the same power storage amount is less than another range.

公开(公告)号：US11075432B2

公开(公告)日：2021-07-27

申请号：US16336233

申请日：2017-09-14

Applicant: GS Yuasa International Ltd.

Inventor： Shinsuke Shibata

IPC: H01M2/34 ,  H01M2/16 ,  H01G11/16 ,  H01G11/52 ,  H01M50/572 ,  H01M4/13 ,  H01G11/06 ,  H01M10/0585 ,  H01M10/04 ,  H01M50/409 ,  H01M50/46

Abstract: One aspect of the present invention is an energy storage device that includes an electrode assembly including a positive electrode, a heat resistance layer, a separator, and a negative electrode layered in this order, a peeling strength between the positive electrode and the heat resistance layer being larger than a peeling strength between the heat resistance layer and the separator, and the peeling strength between the heat resistance layer and the separator being larger than a peeling strength between the separator and the negative electrode.

公开(公告)号：US20210143513A1

公开(公告)日：2021-05-13

申请号：US17253539

申请日：2019-06-21

Applicant: GS Yuasa International Ltd.

Inventor： Yoshimasa TOSHIOKA

IPC: H01M50/547 ,  H01M50/204

Abstract: An embodiment includes at least one energy storage device, an end member arranged in a first direction with the energy storage device, and an external connection terminal fixed to the end member and forming a conduction path between an external device and the energy storage device, in which the external connection terminal has a conduction surface that conducts with the energy storage device and is fixed to the end member in a normal direction of the conduction surface.

公开(公告)号：US20210135324A1

公开(公告)日：2021-05-06

申请号：US16629500

申请日：2018-07-13

Applicant: GS Yuasa International Ltd.

Inventor： Hiroyuki DANNO ,  Jun NAKANISHI

IPC: H01M50/636

Abstract: An energy storage device includes a case. The case includes a cover body where an electrolyte solution filling port is formed, and an electrolyte solution plug that closes the electrolyte solution filling port. The electrolyte solution plug includes a shaft part inserted into the electrolyte solution filling port, and a projecting part that projects from a periphery of the shaft part and is bonded to the cover body. In the cover body, a space adjacent to the shaft part is formed around the electrolyte solution filling port, and a tip end of the shaft part is disposed in the electrolyte solution filling port.