公开(公告)号：US10367191B2

公开(公告)日：2019-07-30

申请号：US15480904

申请日：2017-04-06

Applicant: STOREDOT LTD.

Inventor： Doron Burshtain ,  Sergey Remizov ,  David Jacob ,  Nitzan Shadmi ,  Hani Farran ,  Leora Shapiro ,  Ohad Goldbart ,  Boris Brudnik ,  Carmit Ophir ,  Daniel Aronov

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

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：US20190157727A1

公开(公告)日：2019-05-23

申请号：US16258728

申请日：2019-01-28

Applicant: StoreDot Ltd.

Inventor： David Jacob ,  Sergey Remizov ,  Nitzan Shadmi ,  Hani Farran ,  Daniel Aronov ,  Boris Brudnik

IPC: H01M10/42 ,  H01M4/36 ,  C09D5/24 ,  C09D179/02 ,  H01M10/0525 ,  H01M4/38

CPC classification number: H01M10/4235 ,  C09D5/24 ,  C09D179/02 ,  H01M4/364 ,  H01M4/366 ,  H01M4/386 ,  H01M4/387 ,  H01M10/0525 ,  H01M2004/027

Abstract: Methods of making anode active materials include milling graphite particles with carbohydrate particles to yield graphite-carbohydrate particles, milling the particles with anode material and carbonizing to form composite anode material particles. The anode active materials thus producted are provided with an at least partially porous carbon-graphite coating with both electronic and ionic conductivity.

公开(公告)号：US09966591B1

公开(公告)日：2018-05-08

申请号：US15431793

申请日：2017-02-14

Applicant: Storedot Ltd.

Inventor： Sergey Remizov ,  Boris Brudnik ,  David Jacob ,  Daniel Aronov

IPC: H01M4/04 ,  H01M10/0585

CPC classification number: H01M4/0402 ,  H01M2/168 ,  H01M4/0435 ,  H01M4/667 ,  H01M10/0585

Abstract: Methods, stacks and electrochemical cells are provided, which improve production processes and yield flexible and durable electrode stacks. Methods comprise depositing an electrode slurry on a sacrificial film to form an electrode thereupon, wherein the electrode slurry comprises a first solvent, attaching (e.g., laminating) a current collector film, which is produced at least partly using a second solvent, onto the formed electrode, to yield a stack, wherein a binding strength of the electrode to the current collector film is higher than a binding strength of the electrode to the sacrificial film, and delaminating the sacrificial film from the electrode while maintaining the attachment of the electrode to the current collector film. Additional layers such as a cell separator and an additional electrode may be further attached using similar steps.

公开(公告)号：US20170294643A1

公开(公告)日：2017-10-12

申请号：US15480904

申请日：2017-04-06

Applicant: STOREDOT LTD.

Inventor： Doron BURSHTAIN ,  Sergey Remizov ,  David Jacob ,  Nitzan Shadmi ,  Hani Farran ,  Leora Shapiro ,  Ohad Goldbart ,  Boris Brudnik ,  Carmit Ophir ,  Daniel Aronov

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

CPC classification number: H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/387 ,  H01M4/621 ,  H01M4/624 ,  H01M4/625 ,  H01M10/0525

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：US10903530B2

公开(公告)日：2021-01-26

申请号：US16390837

申请日：2019-04-22

Applicant: StoreDot Ltd.

Inventor： David Jacob ,  Sergey Remizov ,  Nitzan Shadmi ,  Hani Farran ,  Daniel Aronov ,  Boris Brudnik

IPC: H01M4/134 ,  H01M10/42 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/38 ,  C09D179/02 ,  C09D5/24 ,  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：US10468727B2

公开(公告)日：2019-11-05

申请号：US16258728

申请日：2019-01-28

Applicant: StoreDot Ltd.

Inventor： David Jacob ,  Sergey Remizov ,  Nitzan Shadmi ,  Hani Farran ,  Daniel Aronov ,  Boris Brudnik

IPC: H01M4/38 ,  H01M10/42 ,  H01M4/36 ,  C09D5/24 ,  C09D179/02 ,  H01M10/0525 ,  H01M4/02

Abstract: Methods of making anode active materials include milling graphite particles with carbohydrate particles to yield graphite-carbohydrate particles, milling the particles with anode material and carbonizing to form composite anode material particles. The anode active materials thus producted are provided with an at least partially porous carbon-graphite coating with both electronic and ionic conductivity.

公开(公告)号：US10367193B2

公开(公告)日：2019-07-30

申请号：US16243224

申请日：2019-01-09

Applicant: STOREDOT LTD.

Inventor： Doron Burshtain ,  Sergey Remizov ,  David Jacob ,  Nitzan Shadmi ,  Hani Farran ,  Leora Shapiro ,  Ohad Goldbart ,  Boris Brudnik ,  Carmit Ophir ,  Daniel Aronov

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

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.