公开(公告)号：US20190157669A1

公开(公告)日：2019-05-23

申请号：US16254644

申请日：2019-01-23

Applicant: STOREDOT LTD.

Inventor： Doron BURSHTAIN ,  Nir KEDEM ,  Eran SELLA ,  Daniel ARONOV

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

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：US20190148784A1

公开(公告)日：2019-05-16

申请号：US16248213

申请日：2019-01-15

Applicant: StoreDot Ltd.

Inventor： Ron PAZ ,  Nir KEDEM ,  Doron BURSHTAIN ,  Nir BARAM ,  Nir POUR ,  Daniel ARONOV

IPC: H01M10/42 ,  H01M10/0525

CPC classification number: H01M10/4257 ,  H01M4/0461 ,  H01M10/0445 ,  H01M10/0525 ,  H01M10/446 ,  H01M2010/4271

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：US20170294680A1

公开(公告)日：2017-10-12

申请号：US15447784

申请日：2017-03-02

Applicant: StoreDot Ltd.

Inventor： Doron BURSHTAIN ,  Eran SELLA ,  Niles FLEISCHER ,  Hani FARRAN ,  Leora SHAPIRO

IPC: H01M10/0567 ,  H01M10/0525

CPC classification number: H01M10/0567 ,  H01M4/366 ,  H01M4/587 ,  H01M4/628 ,  H01M10/0525 ,  H01M2300/0025

Abstract: Electrolytes, anodes, lithium ion cells and methods are provided for preventing lithium metallization in lithium ion batteries to enhance their safety. Electrolytes comprise up to 20% ionic liquid additives which form a mobile solid electrolyte interface during charging of the cell and prevent lithium metallization and electrolyte decomposition on the anode while maintaining the lithium ion mobility at a level which enables fast charging of the batteries. Anodes are typically metalloid-based, for example include silicon, germanium, tin and/or aluminum. A surface layer on the anode bonds, at least some of the ionic liquid additive to form an immobilized layer that provides further protection at the interface between the anode and the electrolyte, prevents metallization of lithium on the former and decomposition of the latter.

公开(公告)号：US20160380258A1

公开(公告)日：2016-12-29

申请号：US15263399

申请日：2016-09-13

Applicant: StoreDot Ltd.

Inventor： Doron BURSHTAIN ,  Ronny COSTI ,  Carmit OPHIR ,  Daniel ARONOV

IPC: H01M4/134 ,  H01M10/0565 ,  H01M10/0569 ,  H01M4/136 ,  H01M4/133 ,  H01G11/06 ,  H01M2/16 ,  H01G11/08 ,  H01G11/50 ,  H01G11/52 ,  H01G11/56 ,  H01G11/58 ,  H01M10/0525 ,  H01M4/62

CPC classification number: H01M4/38 ,  H01G11/06 ,  H01G11/08 ,  H01G11/50 ,  H01G11/52 ,  H01G11/56 ,  H01G11/58 ,  H01G11/74 ,  H01M2/1653 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/364 ,  H01M4/386 ,  H01M4/587 ,  H01M4/622 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0569 ,  H01M2004/027 ,  H01M2220/20 ,  H01M2220/30

Abstract: Lithium ion devices that include an anode, a cathode and an electrolyte are provided. The anode having an active material including germanium nano-particles, boron carbide nano-particles and tungsten carbide nano-particles, wherein the weight percentage of the germanium is between 5 to 80 weight % of the total weight of the anode material, the weight percentage of boron in the anode material is between 2 to 20 weight % of the total weight of the anode material and the weight percentage of tungsten in the anode material is between 5 to 20 weight % of the total weight of the anode materials.

Abstract translation: 提供了包括阳极，阴极和电解质的锂离子装置。 阳极具有包括锗纳米颗粒，碳化硼纳米颗粒和碳化钨纳米颗粒的活性材料，其中锗的重量百分比为阳极材料总重量的5-80重量％，重量百分比 阳极材料中的硼的重量比为阳极材料总重量的2〜20重量％，阳极材料中钨的重量百分比为负极材料总重量的5〜20重量％。

公开(公告)号：US20160133919A1

公开(公告)日：2016-05-12

申请号：US14980340

申请日：2015-12-28

Applicant: StoreDot Ltd.

Inventor： Daniel ARONOV ,  Liron AMIR ,  Doron BURSHTAIN ,  Olga GUCHOK ,  Leonid KRASOVITSKY

IPC: H01M4/139 ,  H01M10/04 ,  H01M4/04 ,  H01M10/0525

CPC classification number: H01M4/139 ,  H01G11/06 ,  H01G11/08 ,  H01G11/24 ,  H01G11/26 ,  H01M4/04 ,  H01M10/0436 ,  H01M10/0525 ,  H01M2220/30 ,  H02J7/0052 ,  H02J7/007 ,  Y02E60/13

Abstract: Methods for manufacturing multi-functional electrode (MFE) devices for fast-charging of energy-storage devices are provided. The method includes assembling first MFE structure for forming a suitable electrochemical half-couple, the first MFE structure having a first fast-charging component (FCC) and a first MFE assembly and a counter-electrode structure for forming a complementary electrochemical half-couple and supplying an internal voltage controller (IVC) for applying a bias potential to the first MFE structure and/or the counter-electrode structure, the bias potential is set in accordance with the first MFE structure and said counter-electrode structure. The IVC is configured to regulate an intra-electrode potential gradient between the first FCC and the first MFE assembly to control a charge rate from the first FCC to the first MFE assembly.

Abstract translation: 提供了制造用于快速充电储能装置的多功能电极（MFE）装置的方法。 该方法包括组装用于形成合适的电化学半耦合的第一MFE结构，第一MFE结构具有第一快速充电部件（FCC）和第一MFE组件以及用于形成互补电化学半耦合的对电极结构， 提供用于向第一MFE结构和/或对电极结构施加偏置电位的内部电压控制器（IVC），根据第一MFE结构和所述对电极结构设定偏置电位。 IVC被配置为调节第一FCC和第一MFE组件之间的电极内电位梯度以控制从第一FCC到第一MFE组件的充电速率。

公开(公告)号：US20160036045A1

公开(公告)日：2016-02-04

申请号：US14813499

申请日：2015-07-30

Applicant: StoreDot Ltd.

Inventor： Doron BURSHTAIN ,  Liron AMIR ,  Daniel ARONOV ,  Olga GUCHOK ,  Leonid KRASOVITSKY

IPC: H01M4/36 ,  H01M4/38 ,  H01G11/30 ,  H01G11/36 ,  H01G11/52 ,  H01G11/56 ,  H01M4/587 ,  H01M10/0525

CPC classification number: H01M4/364 ,  H01G11/06 ,  H01G11/30 ,  H01G11/36 ,  H01G11/50 ,  H01G11/56 ,  H01G11/86 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/386 ,  H01M4/587 ,  H01M4/625 ,  H01M10/0525 ,  Y02E60/13 ,  Y02T10/7011 ,  Y02T10/7022

Abstract: An anode material for a lithium ion device includes an active material including silicon and boron. The weight percentage of the silicon is between about 4 to 35 weight % of the total weight of the anode material and the weight percentage of the boron is between about 2 to 20 weight % of the total weight of the anode material. The active material may include carbon at a weight percentage of between between 5 to about 60 weight % of the total weight of the anode material. Additional materials, methods of making and devices are taught.

Abstract translation: 用于锂离子装置的负极材料包括含有硅和硼的活性材料。 硅的重量百分比在阳极材料的总重量的约4至35重量％之间，硼的重量百分比在阳极材料的总重量的约2至20重量％之间。 活性材料可以包括以阳极材料总重量的5至约60重量％之间的重量百分比的碳。 教授其他材料，制作方法和装置。