-
公开(公告)号：US20240332510A1
公开(公告)日：2024-10-03
申请号：US18737891
申请日：2024-06-07
发明人： Baohai ZHANG , Chong PENG , Junyi LI
IPC分类号： H01M4/36 , H01M4/02 , H01M4/133 , H01M4/587 , H01M10/0525
CPC分类号： H01M4/366 , H01M4/133 , H01M4/587 , H01M10/0525 , H01M2004/021 , H01M2004/027
摘要： A negative electrode sheet, including a negative current collector, where a first negative electrode film layer is attached to a surface of the negative current collector, and an active substance of the first negative electrode film layer includes silicon particles and first graphite particles; a second negative electrode film layer is attached to a surface of the first negative electrode film layer, and an active substance of the second negative electrode film layer includes second graphite particles. That is, a negative electrode film layer is divided into two layers, such that when lithium-ions move to the negative electrode sheet, part of lithium-ions are first embedded into the second negative electrode film layer, and the remaining lithium-ions are embedded into the first negative electrode film layer.
-
公开(公告)号：US20240145757A1
公开(公告)日：2024-05-02
申请号：US18400357
申请日：2023-12-29
发明人： Baohai ZHANG , Chong PENG , Junyi LI
CPC分类号： H01M10/0431 , H01M4/366 , H01M4/62 , H01M10/4235 , H01M2004/027
摘要： The present application provides a rolled core and a battery, where the rolled core includes a positive electrode piece having a paste-removal portion of positive electrode piece, and a negative electrode piece including a negative current collector, a negative active material layer, and a gap filling body; the paste-removal portion of positive electrode piece is a missing part of the positive electrode piece relative to the negative electrode piece at a winding-start end of the rolled core; the negative current collector includes a first side and a second side which are opposite to each other, and at least one of the first side and the second side is provided with a negative active material layer; the gap filling body is arranged on one of the first side and the second side at a position corresponding to the winding-start end of the rolled core.
-
公开(公告)号：US20240339668A1
公开(公告)日：2024-10-10
申请号：US18746454
申请日：2024-06-18
发明人： Baohai ZHANG , Chong PENG , Junyi LI
IPC分类号： H01M10/0587 , C09J9/00 , H01M4/02 , H01M4/13 , H01M10/0525 , H01M50/531
CPC分类号： H01M10/0587 , C09J9/00 , H01M4/13 , H01M10/0525 , H01M50/531 , H01M2004/027 , H01M2004/028
摘要： A winding battery includes a positive electrode plate and a negative electrode plate which are formed by winding, the positive electrode plate includes a positive electrode current collector and a first coating layer, and the negative electrode plate includes a negative electrode current collector and a negative electrode active layer. The first coating layer includes a first insulating adhesive layer and a positive electrode active layer, the positive electrode active layer is disposed on a surface of the positive electrode current collector, the first insulating adhesive layer is connected to the positive electrode active layer, and at least one cross section of the first insulating adhesive layer and an end surface, close to a winding start point, of the negative electrode active layer are located in a same plane.
-
公开(公告)号：US20230361358A1
公开(公告)日：2023-11-09
申请号：US18354885
申请日：2023-07-19
发明人： Baohai ZHANG , Chong PENG , Junyi LI
IPC分类号： H01M10/0587 , H01M10/0525
CPC分类号： H01M10/0587 , H01M10/0525
摘要： Disclosed is a battery, which includes a jelly roll. The jelly roll includes a first electrode plate, a separator, and a second electrode plate; the first tab is close to a first bending portion of a first end of the jelly roll, the second tab is close to a second bending portion of a second end of the jelly roll, a winding tail end of the jelly roll covers the first bending portion, and the winding tail end extends in a direction from the first bending portion to the second bending portion; and an outer side of the jelly roll includes a first outer adhesive paper, a region between a head of the second end of the jelly roll and the second tab directly faces a first portion of the jelly roll, and the first outer adhesive paper covers at least one side surface of the first portion.
-
公开(公告)号：US20240332514A1
公开(公告)日：2024-10-03
申请号：US18740175
申请日：2024-06-11
发明人： Baohai ZHANG , Chong PENG , Junyi LI
CPC分类号： H01M4/366 , H01M4/133 , H01M4/134 , H01M4/364 , H01M4/386 , H01M4/583 , H01M4/625 , H01M4/626 , H01M10/0525 , H01M2004/021 , H01M2004/027
摘要： A negative electrode sheet, including a negative current collector, where a first negative electrode film layer is attached to a surface of the negative current collector, and an active substance of the first negative electrode film layer includes silicon particles and hard carbon particles; a second negative electrode film layer is attached to a surface of the first negative electrode film layer, and an active substance of the second negative electrode film layer includes graphite particles, such that when lithium-ions move to the negative electrode sheet, part of lithium-ions are first embedded into the second negative electrode film layer, and the remaining lithium-ions are embedded into the first negative electrode film layer.
-
公开(公告)号：US20230361359A1
公开(公告)日：2023-11-09
申请号：US18355614
申请日：2023-07-20
发明人： Baohai ZHANG , Chong PENG , Junyi LI
IPC分类号： H01M10/0587 , H01M50/474 , H01M50/595 , H01M50/105
CPC分类号： H01M10/0587 , H01M50/474 , H01M50/595 , H01M50/105 , H01M10/0525
摘要： A jelly roll includes a negative electrode plate, along a winding direction, an inner surface of a second bending region of the negative electrode plate is covered by a first tape layer, and in a thickness direction of the jelly roll, a projection of two ends of the first tape layer is connected to or partially overlapped with a projection of a winding head of the negative electrode plate. As a result, surface unevenness of the jelly roll is improved, thereby improving the flatness of a battery cell.
-
7.发明申请公开(公告)号：US20210351392A1
公开(公告)日：2021-11-11
申请号：US17119304
申请日：2020-12-11
发明人： Baohai ZHANG , Chong PENG , Wei HE , Chao SHI , Junyi LI , Yanming XU
IPC分类号： H01M4/04 , H01M4/36 , H01M10/0525
摘要： The present disclosure provides a negative electrode sheet, a preparation method thereof and a lithium ion battery containing the same. The negative electrode sheet includes a negative electrode current collector, where the negative electrode current collector includes a single-sided coating area and a double-sided coating area; in the double-sided coating area, second coating layers are disposed on both side surfaces of the negative electrode current collector, respectively, wherein each of the second coating layers includes a first negative electrode active material layer and a second negative electrode active material layer, the second negative electrode active material layer is disposed on a surface of the negative electrode current collector, and the first negative electrode active material layer is disposed on a surface of the second negative electrode active material layer.
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.014 秒)
