公开(公告)号：US20240313196A1

公开(公告)日：2024-09-19

申请号：US18604062

申请日：2024-03-13

Applicant: StoreDot, Ltd.

Inventor： Daniel Aronov ,  Nir Kedem ,  Yaron Idesis ,  Dan Corfas ,  Assaf Zehavi ,  Zvi Ioffe

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0567 ,  H01M50/417 ,  H01M50/426 ,  H01M50/491

CPC classification number: H01M4/364 ,  H01M4/386 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0567 ,  H01M50/417 ,  H01M50/426 ,  H01M50/491 ,  H01M2004/027 ,  H01M2004/028

Abstract: Rechargeable battery cells and methods for extreme fast charging are disclosed. For example, such a rechargeable battery cell might be chargeable to at least 70% of usable capacity within 15 minutes. Such a rechargeable battery cell may include an anode having at least one surface with a reversible areal capacity, after formation, up to 8.0 mAh/cm2, containing a Si—C composite within a porous structure and including a carbon-based conductive additive, wherein the Si—C composite is at least 30% Si by weight, and the material is at least 85% Si—C composite. The rechargeable battery cell may also include a cathode having at least one surface with a reversible areal capacity, after formation, up to 6 mAh/cm2, wherein a ratio of areal capacity of the at least one surface of the anode to the at least one surface of the cathode is between 1.15 to 1.45.

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：US10923712B2

公开(公告)日：2021-02-16

申请号：US16236544

申请日：2018-12-30

Applicant: StoreDot Ltd.

Inventor： Doron Burshtain ,  Nir Kedem ,  Daniel Aronov

IPC: H01M4/16 ,  H01M4/134 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/36 ,  H01M4/1395 ,  H01M4/04 ,  H01M4/62 ,  H01M4/02

Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.

公开(公告)号：US10312504B2

公开(公告)日：2019-06-04

申请号：US15480911

申请日：2017-04-06

Applicant: STOREDOT LTD.

Inventor： Doron Burshtain ,  Nir Kedem ,  Daniel Aronov

IPC: H01M4/134 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/36 ,  H01M4/1395 ,  H01M4/04 ,  H01M4/62 ,  H01M4/02

Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.

公开(公告)号：US10297872B2

公开(公告)日：2019-05-21

申请号：US15706829

申请日：2017-09-18

Applicant: StoreDot Ltd.

Inventor： Ron Paz ,  Nir Kedem ,  Doron Burshtain ,  Nir Baram ,  Nir Pour ,  Daniel Aronov

IPC: H01M10/42 ,  H01M10/0525

Abstract: Systems and methods are provided, in which the level of metal ions in cells stacks and lithium ion batteries is regulated in situ, with the electrodes of the cell stack(s) in the respective pouches. Regulation of metal ions may be carried out electrochemically by metal ion sources in the pouches, electrically connected to the electrodes. The position and shape of the metal ion sources may be optimized to create uniform metal ion movements to the electrode surfaces and favorable SEI formation. The metal ion sources may be removable, or comprise a lithium source for lithiating the anodes or cathodes during operation of the battery according to SoH parameters. Regulation of metal ions may be carried out from metal ion sources in separate electrolyte reservoir(s), with circulation of the metal-ion-containing electrolyte through the cell stacks in the pouches prior or during the formation.

公开(公告)号：US11916198B2

公开(公告)日：2024-02-27

申请号：US17247851

申请日：2020-12-27

Applicant: STOREDOT LTD.

Inventor： Nir Pour ,  Dafna Meron ,  Daniel Hirshberg ,  Nir Kedem ,  Evgenia Llel Kuks

IPC: H01M10/0569 ,  H01M10/0567 ,  H01M10/0568 ,  H01M4/38 ,  H01M10/0525

CPC classification number: H01M10/0569 ,  H01M4/386 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568

Abstract: Fast-charging lithium ion cells are provided, which have electrolytes that do not react with the cell anodes, but instead form a solid-electrolyte interphase (SEI) on the cathodes. Advantageously, such electrolytes improve the performance of the fast-charging cells, and enhance their lifetime and safety. Various electrolyte solutions and lithium ions are proposed to limit electrolyte interactions to the cathodes, or possibly even minimize or prevent these reactions by coating the cathodes. Redox couples may be used to prevent SEI formation on the anode, while promoting SEI formation on the cathode.

公开(公告)号：US11652200B2

公开(公告)日：2023-05-16

申请号：US16735721

申请日：2020-01-07

Applicant: StoreDot Ltd.

Inventor： Shaked Rosenne ,  Ron Paz ,  Nir Kedem ,  Doron Burshtain ,  Nir Baram ,  Nir Pour ,  Daniel Aronov

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

CPC classification number: H01M4/0447 ,  H01M10/0525 ,  H01M2004/028

Abstract: Systems and methods are provided, in which the level of metal ions in cells stacks and lithium ion batteries is regulated in situ, with the electrodes of the cell stack(s) in the respective pouches. Regulation of metal ions may be carried out electrochemically by metal ion sources in the pouches, electrically connected to the electrodes. The position and shape of the metal ion sources may be optimized to create uniform metal ion movements to the electrode surfaces and favorable SEI formation. The metal ion sources may be removable, or comprise a lithium source for lithiating the anodes or cathodes during operation of the battery according to SoH parameters. Regulation of metal ions may be carried out from metal ion sources in separate electrolyte reservoir(s), with circulation of the metal-ion-containing electrolyte through the cell stacks in the pouches prior or during the formation.

公开(公告)号：US10818919B2

公开(公告)日：2020-10-27

申请号：US16157152

申请日：2018-10-11

Applicant: STOREDOT LTD.

Inventor： Doron Burshtain ,  Nir Kedem ,  Eran Sella ,  Daniel Aronov ,  Hani Farran ,  Leora Shapiro

IPC: H01M4/1395 ,  H01M4/36 ,  H01M4/62 ,  H01M4/485 ,  H01M4/60 ,  H01M4/134 ,  H01M4/137 ,  H01M4/1399 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/02

Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.

公开(公告)号：US10461323B2

公开(公告)日：2019-10-29

申请号：US16254644

申请日：2019-01-23

Applicant: STOREDOT LTD.

Inventor： Doron Burshtain ,  Nir Kedem ,  Eran Sella ,  Daniel Aronov

IPC: H01M4/131 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/38 ,  H01M4/1395 ,  H01M4/62 ,  H01M4/02

Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.

公开(公告)号：US10454104B2

公开(公告)日：2019-10-22

申请号：US16243193

申请日：2019-01-09

Applicant: STOREDOT LTD.

Inventor： Doron Burshtain ,  Nir Kedem ,  Daniel Aronov

IPC: H01M4/13 ,  H01M4/36 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.