公开(公告)号：US20230187778A1

公开(公告)日：2023-06-15

申请号：US18162421

申请日：2023-01-31

申请人： Enovix Corporation

发明人： Robert S. BUSACCA ,  Aditya MANDALAM ,  Jeffrey G. BUCK ,  Anthony CALCATERRA ,  Kim Han LEE ,  Prajanya Sunil KENDREKAR

IPC分类号： H01M50/403 ,  H01M50/569 ,  H01M50/449

CPC分类号： H01M50/403 ,  H01M50/569 ,  H01M50/449

摘要： A secondary battery includes a constraint and an electrode assembly disposed within the constraint. The electrode assembly includes a population of unit cells including an electrode current collector layer, an electrode layer, a separator layer, a counter-electrode layer, and a counter-electrode current collector layer in stacked succession in a longitudinal direction. The electrode layer includes an electrode active material, and the counter-electrode layer includes a counter-electrode active material. One of the electrode active material and the counter-electrode material is a cathodically active material and the other of the electrode active material and the counter-electrode material is an anodically active material. A subset of the unit cell population includes at least one extended spacer member located between the electrode current collector layer and the counter-electrode current collector layer, the at least one spacer member extending a distance SD in an x-axis direction beyond an x-axis edge of the constraint.

公开(公告)号：US20230318022A1

公开(公告)日：2023-10-05

申请号：US18189404

申请日：2023-03-24

申请人： Enovix Corporation

发明人： Aditya MANDALAM ,  James MOODY ,  Richard J. CONTRERAS ,  Kim Han LEE ,  Robert S. Busacca ,  Claire KO ,  Anand Mohan YADAV

IPC分类号： H01M10/0525 ,  H01M50/507 ,  H01M50/105 ,  H01M10/04 ,  H01M50/183

CPC分类号： H01M10/0525 ,  H01M50/507 ,  H01M50/105 ,  H01M10/0481 ,  H01M50/183

摘要： A method comprises positioning a lithium containing secondary battery within a pouch defined by an enclosure, trimming the enclosure to form a plurality of flaps, attaching a first side flap and a second side flap of the plurality of flaps to the pouch by folding each of the first and second side flaps towards and into contact with the pouch, wherein a portion of the first side flap extends beyond the pouch to define a first tab and a portion of the second side flap extends beyond the pouch to define a second tab, attaching an end flap of the plurality of flaps to the pouch by folding the end flap towards and into contact with the pouch, and attaching the first tab and the second tab to the end flap by folding the first and second tabs towards and into contact with the end flap.

公开(公告)号：US20220399612A1

公开(公告)日：2022-12-15

申请号：US17838733

申请日：2022-06-13

申请人： Enovix Corporation

发明人： Robert S. BUSACCA ,  Aditya MANDALAM ,  Jeffrey Glenn BUCK ,  Anthony CALCATERRA ,  Kim Han LEE ,  Prajanya Sunil KENDREKAR

IPC分类号： H01M50/403 ,  H01M50/449 ,  H01M50/569

摘要： A secondary battery includes an electrode assembly disposed within a constraint. The electrode assembly comprises a population of unit cells comprising an electrode current collector layer, an electrode layer, a separator layer, a counter-electrode layer, and a counter-electrode current collector layer in stacked succession. A subset of the unit cell population includes extended spacer members between the electrode current collector layer and the counter-electrode current collector layer. One of the spacer members is spaced in a transverse direction from the other extended spacer member, at least a portion of the counter-electrode active material of the counter-electrode layer being located between the spacer members such that the portion of the counter-electrode active material and the spacer members lie in a common plane defined by x and z axes, wherein each of the extended spacer members extend a distance SD in the x-axis direction beyond an x-axis edge of the constraint.