公开(公告)号：US12009481B2

公开(公告)日：2024-06-11

申请号：US16774003

申请日：2020-01-28

Applicant: StoreDot Ltd.

Inventor： Nir Kedem ,  Liron Amir ,  Evgenia Liel (Jeny) Kuks ,  Ido Herzog ,  Shirel Cohen ,  Rony Schwarz ,  Eran Sella

IPC: H01M10/0569 ,  H01M4/38 ,  H01M10/0525 ,  H01M10/0567

CPC classification number: H01M10/0569 ,  H01M4/386 ,  H01M4/387 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2300/0051

Abstract: Lithium ion batteries and electrolytes therefor are provided, which include electrolyte additives having dithioester functional group(s) that stabilize the SEI (solid-electrolyte interface) at the surfaces of the anode material particles, and/or stabilize the CEI (cathode electrolyte interface) at the surfaces of the cathode material particles, and/or act as oxygen scavengers to prevent cell degradation. The electrolyte additives having dithioester functional group(s) may function as polymerization controlling and/or chain transfer agents that regulate the level of polymerization of other electrolyte components, such as VC (vinyl carbonate) and improve the formation and operation of the batteries. The lithium ion batteries may have metalloid-based anodes—including mostly Si, Ge and/or Sn as anode active material particles.

公开(公告)号：US11575156B2

公开(公告)日：2023-02-07

申请号：US16774005

申请日：2020-01-28

Applicant: StoreDot Ltd.

Inventor： Ido Herzog ,  Shirel Cohen ,  Rony Schwarz ,  Eran Sella

IPC: H01M10/0567 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/02

Abstract: Lithium ion batteries and electrolytes therefor are provided, which include electrolyte additives having dithioester functional group(s) that stabilize the SEI (solid-electrolyte interface) at the surfaces of the anode material particles, and/or stabilize the CEI (cathode electrolyte interface) at the surfaces of the cathode material particles, and/or act as oxygen scavengers to prevent cell degradation. The electrolyte additives having dithioester functional group(s) may function as polymerization controlling and/or chain transfer agents that regulate the level of polymerization of other electrolyte components, such as VC (vinyl carbonate) and improve the formation and operation of the batteries. The lithium ion batteries may have metalloid-based anodes including mostly Si, Ge and/or Sn as anode active material particles.

公开(公告)号：US11996520B2

公开(公告)日：2024-05-28

申请号：US16774004

申请日：2020-01-28

Applicant: StoreDot Ltd.

Inventor： Ido Herzog ,  Sanaa Musa ,  Shirel Cohen ,  Rony Schwarz ,  Eran Sella

IPC: H01M4/00 ,  H01M4/38 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2300/0051

Abstract: Lithium ion batteries and electrolytes therefor are provided, which include electrolyte additives having dithioester functional group(s) that stabilize the SEI (solid-electrolyte interface) at the surfaces of the anode material particles, and/or stabilize the CEI (cathode electrolyte interface) at the surfaces of the cathode material particles, and/or act as oxygen scavengers to prevent cell degradation. The electrolyte additives having dithioester functional group(s) may function as polymerization controlling and/or chain transfer agents that regulate the level of polymerization of other electrolyte components, such as VC (vinyl carbonate) and improve the formation and operation of the batteries. The lithium ion batteries may have metalloid-based anodes—including mostly Si, Ge and/or Sn as anode active material particles.

公开(公告)号：US11658279B2

公开(公告)日：2023-05-23

申请号：US16735737

申请日：2020-01-07

Applicant: Storedot Ltd.

Inventor： Ivgeni Shterenberg ,  Eran Sella ,  Eynat Matzner ,  Shirel Cohen ,  Hadar Mazor Shafir ,  Daniel Aronov

IPC: H01M4/04 ,  H01M4/1395 ,  H01M4/38 ,  H01M10/0525 ,  H01M10/02 ,  H01M4/02

CPC classification number: H01M4/0445 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/387 ,  H01M10/02 ,  H01M10/0525 ,  H01M2004/027

Abstract: Prelithiation methods and fast charging lithium ion cell are provided, which combine high energy density and high power density. Several structural and chemical modifications are disclosed to enable combination of features that achieve both goals simultaneously in fast charging cells having long cycling lifetime. The cells have anodes with high content of Si, Ge and/or Sn as principal anode material, and cathodes providing a relatively low C/A ratio, with the anodes being prelithiated to have a high lithium content, provided by a prelithiation algorithm. Disclosed algorithms determine lithium content achieved through prelithiation by optimizing the electrolyte to increase cycling lifetime, adjusting energy density with respect to other cell parameters, and possibly reducing the C/A ratio to maintain the required cycling lifetime.

公开(公告)号：US20190356013A1

公开(公告)日：2019-11-21

申请号：US16525627

申请日：2019-07-30

Applicant: StoreDot Ltd.

Inventor： Eran Sella ,  Shirel Cohen ,  Ido Herzog ,  Rony Schwarz

IPC: H01M10/052 ,  H01M10/0569

Abstract: Lithium ion batteries and electrolytes therefor are provided, which include electrolyte additives having dithioester functional group(s) that stabilize the SEI (solid-electrolyte interface) at the surfaces of the anode material particles, and/or stabilize the CEI (cathode electrolyte interface) at the surfaces of the cathode material particles, and/or act as oxygen scavengers to prevent cell degradation. The electrolyte additives having dithioester functional group(s) may function as polymerization controlling and/or chain transfer agents that regulate the level of polymerization of other electrolyte components, such as VC (vinyl carbonate) and improve the formation and operation of the batteries. The lithium ion batteries may have metalloid-based anodes—including mostly Si, Ge and/or Sn as anode active material particles.

公开(公告)号：US20240363902A1

公开(公告)日：2024-10-31

申请号：US18645351

申请日：2024-04-24

Applicant: STOREDOT LTD.

Inventor： Shirel Cohen ,  Ilya Kisets ,  John Dominic Herszman

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/52

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M10/52

Abstract: A lithium ion cell that includes electrodes, an organic electrolyte; and a metal-free electrolyte additive that comprises an epoxide functional group configured to convert gaseous carbon dioxide generated during use of the lithium ion cell into liquid carbonate under ambient conditions.

公开(公告)号：US20210242497A1

公开(公告)日：2021-08-05

申请号：US16774005

申请日：2020-01-28

Applicant: StoreDot Ltd.

Inventor： Ido Herzog ,  Shirel Cohen ,  Rony Schwarz ,  Eran Sella

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/525 ,  H01M4/505 ,  H01M4/58 ,  H01M10/0568 ,  H01M4/02

Abstract: Lithium ion batteries and electrolytes therefor are provided, which include electrolyte additives having dithioester functional group(s) that stabilize the SEI (solid-electrolyte interface) at the surfaces of the anode material particles, and/or stabilize the CEI (cathode electrolyte interface) at the surfaces of the cathode material particles, and/or act as oxygen scavengers to prevent cell degradation. The electrolyte additives having dithioester functional group(s) may function as polymerization controlling and/or chain transfer agents that regulate the level of polymerization of other electrolyte components, such as VC (vinyl carbonate) and improve the formation and operation of the batteries. The lithium ion batteries may have metalloid-based anodes including mostly Si, Ge and/or Sn as anode active material particles.