公开(公告)号：US20190044180A1

公开(公告)日：2019-02-07

申请号：US16157128

申请日：2018-10-11

Applicant: StoreDot Ltd.

Inventor： Zohar Drach ,  Olga Guchok ,  Leonid Krasovitsky ,  Ekaterina Gotlib Vainshtein ,  Liron Amir

IPC: H01M10/052 ,  H01M10/0569 ,  H01M10/0567

Abstract: Electrolytes, lithium ion cells and corresponding methods are provided, for extending the cycle life of fast charging lithium ion batteries. The electrolytes are based on fluoroethylene carbonate (FEC) and/or vinylene carbonate (VC) as the cyclic carbonate component, and possibly on ethyl acetate (EA) and/or ethyl methyl carbonate (EMC) as the linear component. Proposed electrolytes extend the cycle life by factors of two or more, as indicated by several complementary measurements.

公开(公告)号：US10199677B2

公开(公告)日：2019-02-05

申请号：US15844689

申请日：2017-12-18

Applicant: StoreDot Ltd.

Inventor： Zohar Drach ,  Olga Guchok ,  Leonid Krasovitsky ,  Ekaterina Gotlib Vainshtein ,  Liron Amir

IPC: H01M10/052 ,  H01M10/0569

Abstract: Electrolytes, lithium ion cells and corresponding methods are provided, for extending the cycle life of fast charging lithium ion batteries. The electrolytes are based on fluoroethylene carbonate (FEC) and/or vinylene carbonate (VC) as the cyclic carbonate component, and possibly on ethyl acetate (EA) and/or ethyl methyl carbonate (EMC) as the linear component. Proposed electrolytes extend the cycle life by factors of two or more, as indicated by several complementary measurements.

公开(公告)号：US11069918B2

公开(公告)日：2021-07-20

申请号：US16157128

申请日：2018-10-11

Applicant: StoreDot Ltd.

Inventor： Zohar Drach ,  Olga Guchok ,  Leonid Krasovitsky ,  Ekaterina Gotlib Vainshtein ,  Liron Amir

IPC: H01M10/052 ,  H01M10/0569 ,  H01M10/0567

Abstract: Electrolytes, lithium ion cells and corresponding methods are provided, for extending the cycle life of fast charging lithium ion batteries. The electrolytes are based on fluoroethylene carbonate (FEC) and/or vinylene carbonate (VC) as the cyclic carbonate component, and possibly on ethyl acetate (EA) and/or ethyl methyl carbonate (EMC) as the linear component. Proposed electrolytes extend the cycle life by factors of two or more, as indicated by several complementary measurements.

公开(公告)号：US10033023B2

公开(公告)日：2018-07-24

申请号：US15846246

申请日：2017-12-19

Applicant: STOREDOT LTD.

Inventor： Ekaterina Gotlib Vainshtein ,  Daniel Aronov

IPC: H01M2/16 ,  H01M10/0525 ,  H01M10/04 ,  H01M4/04 ,  H01M2/02 ,  H01M10/0585

CPC classification number: H01M2/1673 ,  H01M2/0275 ,  H01M4/0402 ,  H01M4/0435 ,  H01M10/0404 ,  H01M10/0468 ,  H01M10/0525 ,  H01M10/0585

Abstract: Methods, stacks and electrochemical cells are provided, in which the cell separator is surface-treated prior to attachment to the electrode(s) to form binding sites on the cell separator and enhance binding thereof to the electrode(s), e.g., electrostatically. The cell separator(s) may be attached to the electrode(s) by cold press lamination, wherein the created binding sites are configured to stabilize the cold press lamination electrostatically—forming flexible and durable electrode stacks. Electrode slurry may be deposited on a sacrificial film and then attached to current collector films, avoiding unwanted interactions between materials and in particular solvents involved in the respective slurries. Dried electrode slurry layers may be pressed or calendared against each other to yield thinner, smother and more controllably porous electrodes, as well as higher throughput. The produced stacks may be used in electrochemical cells and in any other type of energy storage device.

公开(公告)号：US10003060B1

公开(公告)日：2018-06-19

申请号：US15846246

申请日：2017-12-19

Applicant: STOREDOT LTD.

Inventor： Ekaterina Gotlib Vainshtein ,  Daniel Aronov

IPC: H01M2/16 ,  H01M10/0525 ,  H01M10/04 ,  H01M4/04 ,  H01M2/02 ,  H01M10/0585

CPC classification number: H01M2/1673 ,  H01M2/0275 ,  H01M4/0402 ,  H01M4/0435 ,  H01M10/0404 ,  H01M10/0468 ,  H01M10/0525 ,  H01M10/0585

Abstract: Methods, stacks and electrochemical cells are provided, in which the cell separator is surface-treated prior to attachment to the electrode(s) to form binding sites on the cell separator and enhance binding thereof to the electrode(s), e.g., electrostatically. The cell separator(s) may be attached to the electrode(s) by cold press lamination, wherein the created binding sites are configured to stabilize the cold press lamination electrostatically—forming flexible and durable electrode stacks. Electrode slurry may be deposited on a sacrificial film and then attached to current collector films, avoiding unwanted interactions between materials and in particular solvents involved in the respective slurries. Dried electrode slurry layers may be pressed or calendared against each other to yield thinner, smother and more controllably porous electrodes, as well as higher throughput. The produced stacks may be used in electrochemical cells and in any other type of energy storage device.