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公开(公告)号：US11631862B2
公开(公告)日：2023-04-18
申请号：US17543954
申请日：2021-12-07
发明人： Yaru Zhou , Qingrui Xue , Zige Zhang , Miao Jiang , Jing Li , Wei Li , Long Wang
IPC分类号： H01M4/66 , H01M4/70 , H01M50/536 , H01M4/02
摘要： The present disclosure relates to a secondary battery and an electrode plate. The electrode plate includes a current collector, an active material layer, a conductive structure, and a first protective layer. The current collector includes an insulating layer and a conductive layer disposed on the insulating layer. The conductive layer includes a main body portion and a protrusion portion. A surface of the main body portion facing away from the insulating layer is covered by the active material layer, while a surface of the protrusion portion facing away from the insulating layer is uncovered by the active material layer. The conductive structure is welded to the protrusion portion and thus a welded zone is formed. The first protective layer has elasticity, and is disposed on a side of the protrusion portion facing away from the insulating layer and is located between the welded zone and the active material layer.
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32.发明申请公开(公告)号：US20220367985A1
公开(公告)日：2022-11-17
申请号：US17815216
申请日：2022-07-27
发明人： Wenwei Chen , Xiaona Wang , Zige Zhang , Qingrui Xue , Chengdu Liang
IPC分类号： H01M50/533 , H01M50/169 , H01M50/566 , H01M50/209 , H01M50/54 , H01M4/38
摘要： Embodiments provide an electrode assembly, a battery cell, a battery, an electrical apparatus, and a manufacturing method and device. In those embodiments, the electrode assembly includes: an electrode plate, including a main portion and at least one protruding portion. The main portion includes a metal substrate and an active material layer coated on a surface of the metal substrate. The protruding portion is connected to the metal substrate. The metal substrate protrudes along a length direction of the electrode assembly. Along a thickness direction of the electrode assembly, a size of at least a part of the protruding portion is greater than a size of the metal substrate. The electrode assembly according to the Embodiments aims to solve a technical problem of severe heat emission of a tab.
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33.发明授权公开(公告)号：US11444284B2
公开(公告)日：2022-09-13
申请号：US16817278
申请日：2020-03-12
发明人： Zige Zhang , Wei Li , Qingrui Xue , Jing Li , Pengxiang Wang , Yang Zhang
摘要： The present application relates to a secondary battery and an electrode member thereof. The electrode member includes an insulating substrate, a conducting layer and an active material layer. The conducting layer is provided on a surface of the insulating substrate, and the conducting layer includes a main portion and a protruding portion extending from the main portion, the main portion is coated with the active material layer, the protruding portion is not coated with the active material layer. The active material layer includes a first portion and a second portion, the first portion is positioned at an end of the active material layer away from the protruding portion, the second portion is positioned at a side of the first portion close to the protruding portion, and a thickness of the first portion is less than a thickness of the second portion.
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公开(公告)号：US20220102698A1
公开(公告)日：2022-03-31
申请号：US17547324
申请日：2021-12-10
发明人： Wei LI , Qingrui Xue , Jing Li , Zige Zhang , Yang Zhang , Yang Lu , Pengxiang Wang
IPC分类号： H01M4/13 , H01M50/536 , H01M4/66 , H01M4/62 , H01M4/36 , H01M10/0525
摘要： This application relates to an electrode plate, an electrochemical apparatus, and an apparatus thereof. The electrode plate includes a current collector, an electrode active material layer provided on at least one surface of the current collector, and an electrical connection member electrically connected to the current collector. The electrode active material layer is provided at a zone referred to as a membrane zone on a main body portion of the current collector, the electrical connection member and the current collector are welded and connected at a welding zone referred to as an adapting welding zone at an edge of the current collector, and a transition zone is referred to as an extension zone, where the transition zone is of the current collector between the membrane zone and the adapting welding zone and coated with no electrode active material layer. The current collector is a composite current collector.
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公开(公告)号：US20220093933A1
公开(公告)日：2022-03-24
申请号：US17541300
申请日：2021-12-03
发明人： Wei Li , Jing Li , Qingrui Xue , Yang Zhang , Zige Zhang , Pengxiang Wang , Yang Lu
IPC分类号： H01M4/66 , H01M4/62 , H01M50/586 , H01M50/536 , H01M50/59 , H01M10/0525
摘要： This application relates to an electrode plate, an electrochemical apparatus, and an apparatus thereof. The electrode plate in this application includes a current collector, an electrode active material layer disposed on at least one surface of the current collector, and an electrical connection member electrically connected to the current collector. The electrode active material layer is disposed on a main body portion of the current collector at a zone referred to as a film zone, the electrical connection member and the current collector are welded and connected at an edge of the current collector at a welding zone referred to as a transfer welding zone, and a transition zone of the current collector between the film zone and the transfer welding zone, coated with no electrode active material layer, is referred to as an extension zone. The current collector is a composite current collector.
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公开(公告)号：US20210296654A1
公开(公告)日：2021-09-23
申请号：US17335034
申请日：2021-05-31
发明人： Chengdu Liang , Jing Li , Wei Li , Qingrui Xue , Zige Zhang , Yang Zhang
摘要： The electrode plate according to the present application includes a current collector and an electrode active material layer disposed on at least one surface of the current collector, wherein the current collector includes a support layer and a conductive layer disposed on at least one surface of the support layer, the conductive layer has a single-sided thickness D2 satisfying: 30 nm≤D2≤3 μm; and a conductive primer layer containing a first conductive material and a binder is provided between the current collector and the electrode active material layer, and the first conductive material in the conductive primer layer comprises at least one of a one-dimensional conductive material and a two-dimensional conductive material. The electrode plate of the present application has good workability, and the electrochemical device including the electrode plate has high energy density, good electrical performance and long-term reliability.
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公开(公告)号：US11101493B2
公开(公告)日：2021-08-24
申请号：US16268364
申请日：2019-02-05
发明人： Chengdu Liang , Zige Zhang , Qingrui Xue , Wei Li , Jing Li , Pengxiang Wang
IPC分类号： H01M10/04 , H01M2/02 , H01M50/116
摘要： The present disclosure provides a secondary battery and an electrode plate thereof. The electrode member comprises an insulating substrate, a first conducting layer and an active material layer; the first conducting layer is provided on a surface of the insulating substrate, the active material layer is provided at a side of the first conducting layer away from the insulating substrate; the first conducting layer is provided with a stripe-shape groove extending in a height direction, the stripe-shape groove is used for releasing stress of the first conducting layer. The secondary battery comprises an electrode assembly, the electrode assembly comprises the electrode member.
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公开(公告)号：US11043677B2
公开(公告)日：2021-06-22
申请号：US17137077
申请日：2020-12-29
发明人： Zige Zhang , Wei Li , Qingrui Xue , Jing Li , Pengxiang Wang , Yang Zhang
摘要： The present application relates to a secondary battery and an electrode member thereof. The electrode member includes an insulating substrate, a conducting layer and an active material layer. The conducting layer is provided on a surface of the insulating substrate, and the conducting layer includes a main portion and a protruding portion extending from the main portion, the main portion is coated with the active material layer, the protruding portion is not coated with the active material layer. The active material layer includes a first portion and a second portion, the first portion is positioned at an end of the active material layer away from the protruding portion, the second portion is positioned at a side of the first portion close to the protruding portion, and a thickness of the first portion is less than a thickness of the second portion.
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公开(公告)号：US20210151772A1
公开(公告)日：2021-05-20
申请号：US17132548
申请日：2020-12-23
发明人： Jing LI , Qingrui Xue , Zige Zhang , Wei Li , Xianwei Yang
IPC分类号： H01M4/66 , H01M4/62 , H01M10/0525 , H01M4/13
摘要： 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. The electrode active material layer includes an electrode active material, a binder, and a conductive agent unevenly distributed in a thickness direction of the electrode active material layer. A weight percentage of the conductive agent in an interior area of the electrode active material layer is higher than that in an exterior area of the electrode active material layer.
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