公开(公告)号：US20240105984A1

公开(公告)日：2024-03-28

申请号：US18361437

申请日：2023-07-28

申请人： Sila Nanotechnologies, Inc.

发明人： Sepideh PARVINIAN ,  Indrani BHATTACHARYYA ,  Michael PAVILONIS ,  Weimin WANG ,  Gaurav Rajpal SHARMA ,  Jens STEIGER

IPC分类号： H01M10/0525 ,  H01M4/04 ,  H01M10/0587

CPC分类号： H01M10/0525 ,  H01M4/0404 ,  H01M10/0587

摘要： A lithium-ion battery and methods thereof are disclosed. In an aspect, the lithium-ion battery includes an anode component, a cathode component, a separator, and an electrolyte. The anode component includes an anode current collector and a respective anode coating on each side of the anode current collector. An anode coating includes composite particles including carbon and silicon. A mass fraction of the silicon in the composite particles of the anode coatings may be in a range of about 5 wt. % to about 70 wt. % of the anode coatings. The anode component undergoes a maximum areal expansion (Amax) during the multiple charging and discharging cycles. The anode current collector comprises a copper foil, the copper foil being characterized, before the respective anode coatings are formed thereon, by an ultimate tensile stress (UTS) and a strain at the UTS (εUTS).

公开(公告)号：US20200083542A1

公开(公告)日：2020-03-12

申请号：US16563791

申请日：2019-09-06

申请人： Sila Nanotechnologies, Inc.

发明人： Gleb YUSHIN ,  Justin YEN ,  Jens STEIGER ,  Eniko ZSOLDOS ,  Mareva FEVRE ,  Adam KAJDOS ,  Weimin WANG

IPC分类号： H01M4/88 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/38

摘要： In an embodiment, a Li-ion battery electrode comprises a conductive interlayer arranged between a current collector and an electrode active material layer. The conductive interlayer comprises first conductive additives and a first polymer binder, and the electrode active material layer comprises a plurality of active material particles mixed with a second polymer binder (which may be the same as or different from the first polymer binder) and second conductive additives (which may be the same as or different from the first conductive additives). In a further embodiment, the Li-ion battery electrode may be fabricated via application of successive slurry formulations onto the current collector, with the resultant product then being calendared (or densified).

公开(公告)号：US20220416256A1

公开(公告)日：2022-12-29

申请号：US17898050

申请日：2022-08-29

申请人： Sila Nanotechnologies, Inc.

发明人： Gleb YUSHIN ,  Justin YEN ,  Jens STEIGER ,  Eniko ZSOLDOS ,  Mareva FEVRE ,  Adam KAJDOS ,  Weimin WANG

IPC分类号： H01M4/88 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525

摘要： In an embodiment, a Li-ion battery electrode comprises a conductive interlayer arranged between a current collector and an electrode active material layer. The conductive interlayer comprises first conductive additives and a first polymer binder, and the electrode active material layer comprises a plurality of active material particles mixed with a second polymer binder (which may be the same as or different from the first polymer binder) and second conductive additives (which may be the same as or different from the first conductive additives). In a further embodiment, the Li-ion battery electrode may be fabricated via application of successive slurry formulations onto the current collector, with the resultant product then being calendared (or densified).

公开(公告)号：US20240332552A1

公开(公告)日：2024-10-03

申请号：US18738427

申请日：2024-06-10

申请人： Sila Nanotechnologies, Inc.

发明人： Gleb YUSHIN ,  Justin YEN ,  Jens STEIGER ,  Eniko ZSOLDOS ,  Mareva FEVRE ,  Adam KAJDOS ,  Weimin WANG

IPC分类号： H01M4/88 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525

CPC分类号： H01M4/8828 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/622 ,  H01M4/625 ,  H01M4/661 ,  H01M4/663 ,  H01M4/667 ,  H01M4/668 ,  H01M10/0525 ,  Y02E60/10 ,  Y02E60/50

摘要： In an embodiment, a Li-ion battery electrode comprises a conductive interlayer arranged between a current collector and an electrode active material layer. The conductive interlayer comprises first conductive additives and a first polymer binder, and the electrode active material layer comprises a plurality of active material particles mixed with a second polymer binder (which may be the same as or different from the first polymer binder) and second conductive additives (which may be the same as or different from the first conductive additives). In a further embodiment, the Li-ion battery electrode may be fabricated via application of successive slurry formulations onto the current collector, with the resultant product then being calendared (or densified).