公开(公告)号：US20240274817A1

公开(公告)日：2024-08-15

申请号：US18636017

申请日：2024-04-15

Applicant: RSR Technologies, Inc.

Inventor： R. David PRENGAMAN ,  Timothy W. ELLIS ,  Matthew T. RAIFORD

IPC: H01M4/57 ,  B22F9/04 ,  B22F9/08 ,  B22F9/16 ,  C01B35/12 ,  C01G29/00 ,  C22C11/00 ,  C22C11/10 ,  H01M4/02 ,  H01M4/04 ,  H01M4/14 ,  H01M4/20 ,  H01M4/21 ,  H01M4/38 ,  H01M4/56 ,  H01M4/66 ,  H01M4/73 ,  H01M10/08

CPC classification number: H01M4/57 ,  B22F9/04 ,  B22F9/082 ,  B22F9/16 ,  C01B35/128 ,  C01G29/006 ,  C22C11/00 ,  C22C11/10 ,  H01M4/0404 ,  H01M4/0445 ,  H01M4/0447 ,  H01M4/0471 ,  H01M4/14 ,  H01M4/20 ,  H01M4/21 ,  H01M4/38 ,  H01M4/56 ,  H01M4/662 ,  H01M4/73 ,  H01M10/08 ,  B22F2009/043 ,  B22F2009/0848 ,  B22F2009/086 ,  B22F2301/30 ,  B22F2302/25 ,  B22F2998/10 ,  C01P2006/40 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2300/0011

Abstract: A lead-based alloy containing alloying additions of bismuth, antimony, arsenic, and tin is used for the production of doped leady oxides, lead-acid battery active materials, lead-acid battery electrodes, and lead-acid batteries.

公开(公告)号：US12051811B2

公开(公告)日：2024-07-30

申请号：US17112749

申请日：2020-12-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jing Li ,  Qingrui Xue ,  Zige Zhang ,  Wei Li ,  Xianwei Yang

IPC: H01M4/66

CPC classification number: H01M4/662 ,  H01M4/663 ,  H01M4/664 ,  H01M4/667

Abstract: This application relates to an electrode plate that includes a current collector and an electrode active material layer disposed on at least one surface of the current collector. The current collector includes a support layer and a conductive layer disposed on at least one surface of the support layer. A single-side thickness D2 of the conductive layer satisfies 30 nm≤D2≤3 μm, a conductive primer layer including a conductive material and a bonding agent is further disposed between the current collector and the electrode active material layer. The bonding agent in the conductive primer layer includes a water-based bonding agent. The electrode plate in this application has good machinability. An electrochemical apparatus including the electrode plate has high energy density, good electrical performance, and long-term reliability.

公开(公告)号：US20240234740A1

公开(公告)日：2024-07-11

申请号：US18557603

申请日：2022-04-28

Applicant: TOYO KOHAN CO., LTD.

Inventor： Keishi KATSURA ,  Misato UENO ,  Shinichirou HORIE ,  Etsuro TSUTSUMI ,  Satoko HARADA ,  Toshifumi KOYANAGI ,  Shunki OBATA ,  Koh YOSHIOKA

IPC: H01M4/66 ,  H01M4/02 ,  H01M10/34

CPC classification number: H01M4/662 ,  H01M4/667 ,  H01M10/345 ,  H01M2004/021

Abstract: To provide a surface treated steel foil that is for a current collector and that has hydrogen barrier properties suitable for a battery using a hydrogen occluding alloy.
The surface treated steel foil for a current collector has a first surface on which a hydrogen occluding alloy is disposed and a second surface located on a side opposite to the first surface. The surface treated steel foil for a current collector is characterized by having an iron-nickel alloy layer that is laminated on at least one surface side of the first surface side and the second surface side on the side opposite to the first surface side of a metallic base material composed of steel foil and that restrains permeation or diffusion of hydrogen in the surface treated steel foil for a current collector, and is characterized in that at least one layer included in the iron-nickel alloy layer has a thickness of not less than 0.5 μm.

公开(公告)号：US20240229284A1

公开(公告)日：2024-07-11

申请号：US18557606

申请日：2022-04-28

Applicant: TOYO KOHAN CO., LTD.

Inventor： Etsuro TSUTSUMI ,  Kyoko TAKANO ,  Shinichirou HORIE ,  Koh YOSHIOKA ,  Keishi KATSURA ,  Satoko HARADA ,  Misato UENO ,  Toshifumi KOYANAGI ,  Shunki OBATA

IPC: C25D7/06 ,  B32B15/01 ,  C25D3/12 ,  C25D5/14 ,  C25D5/50 ,  H01M4/02 ,  H01M4/66

CPC classification number: C25D7/0614 ,  B32B15/011 ,  B32B15/015 ,  C25D3/12 ,  C25D5/14 ,  C25D5/50 ,  H01M4/662 ,  H01M4/667 ,  H01M2004/029

Abstract: [Object]
To provide a surface treated steel foil having hydrogen barrier properties suitable for a bipolar battery.
[Solving Means]
A surface treated steel foil having a first surface and a second surface located on a side opposite to the first surface, the surface treated steel foil including a base material composed of a low carbon steel or an ultra low carbon steel, and an iron-nickel alloy layer laminated on the base material on at least one surface side of the first surface side and the second surface side. Fe1Ni1 is included as an alloy phase in the iron-nickel alloy layer, an orientation index in X-ray diffraction of a (220) plane of Fe1Ni1 in the surface having the iron-nickel alloy layer is not less than 1.0, and the ratio of the maximum value of diffraction intensity of the (220) plane of Fe1Ni1 and the maximum value of diffraction intensity of a Fe(200) plane satisfies the following formula (1).

公开(公告)号：US11955637B2

公开(公告)日：2024-04-09

申请号：US17295617

申请日：2019-11-22

Applicant: ATTACCATO Limited Liability Company ,  ADEKA Corporation

Inventor： Takashi Mukai ,  Naoto Yamashita ,  Yuta Ikeuchi ,  Taichi Sakamoto ,  Kenji Kakiage ,  Hiroyuki Osada ,  Yohei Aoyama

IPC: H01M4/00 ,  H01M4/04 ,  H01M4/38 ,  H01M4/46 ,  H01M4/58 ,  H01M4/62 ,  H01M4/66

CPC classification number: H01M4/5825 ,  H01M4/0404 ,  H01M4/382 ,  H01M4/466 ,  H01M4/622 ,  H01M4/662

Abstract: To provide an electrode for non-aqueous electrolyte batteries, which traps hydrogen sulfide gas, generated from the inside thereof for some reason, in the electrode, and suppresses the outflow of hydrogen sulfide gas to the outside of the battery. An electrode for lithium ion batteries includes a coating material which contains a silanol group and is present on at least a surface of an active material layer. The active material layer contains a sulfur-based material and a resin-based binder. The sulfur-based material is an active material capable of alloying with lithium metal or an active material capable of occluding lithium ions. The coating material containing the silanol group is a silicate having a siloxane bond or a silica fine particle aggregate having a siloxane bond as a component.

公开(公告)号：US20240105960A1

公开(公告)日：2024-03-28

申请号：US17768966

申请日：2020-09-29

Applicant: TOYO KOHAN CO., LTD.

Inventor： Michio KAWAMURA ,  Shinichiro HORIE ,  Etsuro TSUTSUMI ,  Yuma YOSHIZAKI ,  Koh YOSHIOKA

IPC: H01M4/66 ,  H01M4/70

CPC classification number: H01M4/662 ,  H01M4/70

Abstract: An electrolytic foil and a battery current collector is provided in which the risk of breakage or tearing during manufacturing presented by reduced thickness can be restrained, and which possess sufficient strength for repeated charging and discharging in a secondary battery. The electrolytic foil and the battery current collector contain a Ni—Fe alloy layer, having a thickness of 1.5 to 10 μm and having a first surface and a second surface and wherein the value of a three-dimensional surface properties parameter Sv divided by the thickness is equal to or less than 0.5 for the first surface and the second surface.

公开(公告)号：US20240088399A1

公开(公告)日：2024-03-14

申请号：US17944760

申请日：2022-09-14

Applicant: GM Global Technology Operations LLC

Inventor： Michael P. Balogh ,  Jiazhi Hu ,  Jing Gao ,  Nicole Ellison ,  Ratandeep Singh Kukreja

IPC: H01M4/80 ,  H01M4/04 ,  H01M4/38 ,  H01M4/48 ,  H01M4/525 ,  H01M4/587 ,  H01M4/66 ,  H01M10/0525 ,  H01M50/434

CPC classification number: H01M4/80 ,  H01M4/0404 ,  H01M4/382 ,  H01M4/386 ,  H01M4/483 ,  H01M4/525 ,  H01M4/587 ,  H01M4/662 ,  H01M4/663 ,  H01M10/0525 ,  H01M50/434 ,  H01M2004/021

Abstract: A battery electrode for an electrochemical cell that cycles lithium ions is described and includes: a first separator layer including a first side and a second side; a first conductive porous layer located on the first side of the first separator layer; and an active material layer to cycle lithium ions and including a first side and a second side, where the first side of the active material layer is in contact with the first conductive porous layer.

公开(公告)号：US11923547B2

公开(公告)日：2024-03-05

申请号：US17501905

申请日：2021-10-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jing Li ,  Wei Li ,  Qingrui Xue ,  Zige Zhang ,  Yang Zhang ,  Pengxiang Wang ,  Yang Lu

IPC: H01M4/66 ,  H01M4/13 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/667 ,  H01M4/13 ,  H01M4/622 ,  H01M4/625 ,  H01M4/626 ,  H01M4/661 ,  H01M4/662 ,  H01M4/668 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

Abstract: This application relates to the battery field, and specifically, to a positive electrode plate, an electrochemical apparatus, and an apparatus. The positive electrode plate in this application includes a current collector and an electrode active material layer disposed on at least one surface of the current collector, where the current collector includes a support layer and a conductive layer disposed on at least one surface of the support layer. A single-sided thickness D2 of the conductive layer satisfies 30 nm≤D2≤3 μm. A thickness D1 of the support layer satisfies 1 μm≤D1≤30 μm. The support layer is made of a polymer material or a polymer composite material. The electrode active material layer includes electrode active materials, a binder, and a conductive agent.

公开(公告)号：US11923511B2

公开(公告)日：2024-03-05

申请号：US16925755

申请日：2020-07-10

Applicant: Electrochem Solutions, Inc.

Inventor： Yufei Wang ,  John S. Miller ,  John Hession ,  Arden P Johnson

IPC: H01M10/0587 ,  A61K31/433 ,  A61K31/44 ,  A61K31/4439 ,  A61K31/444 ,  A61K31/4545 ,  A61K31/4965 ,  A61K31/497 ,  A61K31/501 ,  A61K31/505 ,  A61K31/506 ,  A61K45/06 ,  C07D213/75 ,  C07D239/42 ,  C07D241/20 ,  C07D285/135 ,  C07D401/04 ,  C07D401/12 ,  C07D417/06 ,  C07D417/08 ,  C07D417/14 ,  H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M4/58 ,  H01M4/62 ,  H01M4/66 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/119 ,  H01M50/131 ,  H01M50/138 ,  H01M50/148 ,  H01M50/159 ,  H01M50/186 ,  H01M50/188 ,  H01M50/191 ,  H01M50/466

CPC classification number: H01M10/0587 ,  A61K31/433 ,  A61K31/44 ,  A61K31/4439 ,  A61K31/444 ,  A61K31/4545 ,  A61K31/4965 ,  A61K31/497 ,  A61K31/501 ,  A61K31/505 ,  A61K31/506 ,  A61K45/06 ,  C07D213/75 ,  C07D239/42 ,  C07D241/20 ,  C07D285/135 ,  C07D401/04 ,  C07D401/12 ,  C07D417/06 ,  C07D417/08 ,  C07D417/14 ,  H01M4/134 ,  H01M4/368 ,  H01M4/382 ,  H01M4/582 ,  H01M4/623 ,  H01M4/625 ,  H01M4/662 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/119 ,  H01M50/138 ,  H01M50/1535 ,  H01M50/159 ,  H01M50/186 ,  H01M50/188 ,  H01M50/191 ,  H01M50/466 ,  H01M50/131 ,  H01M2300/0031 ,  Y02A50/30

Abstract: A novel wound electrode assembly for a lithium oxyhalide electrochemical cell is described. The electrode assembly comprises an elongate cathode of an electrochemically non-active but electrically conductive carbonaceous material disposed between an inner elongate portion and an outer elongate portion of a unitary lithium anode. That way, lithium faces the entire length of the opposed major sides of the cathode. This inner anode portion/cathode/outer anode portion configuration is rolled into a wound-shaped electrode assembly that is housed inside a cylindrically-shaped casing. A cylindrically-shaped sheet-type spring centered in the electrode assembly presses outwardly to limit axial movement of the electrode assembly. In one embodiment, all the non-active components, except for the cathode current collector which is nickel, are made of stainless-steel. This provides the cell with a low magnetic signature without adversely affecting the cell's high-rate capability.

公开(公告)号：US20240039000A1

公开(公告)日：2024-02-01

申请号：US18123366

申请日：2023-03-20

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xingxing LI ,  Zhiming CHEN ,  Xiaoteng HUANG

IPC: H01M4/66 ,  H01M10/04 ,  H01M50/103

CPC classification number: H01M4/667 ,  H01M4/662 ,  H01M4/663 ,  H01M10/0431 ,  H01M50/103 ,  H01M2220/20

Abstract: The present application relates to the technical field of batteries, and in particular to a current collector, an electrode sheet, an electrode assembly, a battery cell, a battery and an electric apparatus. The current collector includes: a support layer; and a conductive layer on at least one of two opposite sides of the support layer, where when the support layer is heated and shrinks, the conductive layer shrinks with the support layer to form a hole around a heated portion, the conductive layer includes a first conductive layer in contact with the support layer, and the first conductive layer is a granular conductive layer. On this basis, the safety performance can be improved.