Ramot at Tel-aviv University Ltd.

Tel Aviv University Future Technology Development L.p.

Other

Ramot University Authority for Applied Research and Industrial Development Limited

Diana Golodnitsky

Emanuel Peled

Menachem Nathan

Tania Ripenbein

Ela Strauss

Vladimir Yufit

Kathrin Freedman

Meital Alon

Hadar Mazor-Shafir

Svetlana Menkin

Fernando Patolsky

Yosef Kamir

Guy Davidi

Ronen Cohen

Chen Menachem

Meital Goor Dar

Keren Goldshtein

Gabor Kosa

Dan Schneier

Shlomo Avshalomov

Gilat Ardel

Roni Hadar

Svetlana Menkin-Bachbut

Elazar Cohen

Eran Rosen

Inna Schechtman

Inna Shechtman

Raymond Blanga

A composition-of-matter comprising a plurality of particles is disclosed herein, the particles comprising a substance reversibly releasing an alkali metal while decreasing in volume and absorbing the alkali metal while increasing in volume. Some or all of the particles are encapsulated within a volume enclosed by a shell or matrix which conducts cations of the alkali metal, wherein a volume of the substance upon maximal absorption of the alkali metal does not exceed the volume enclosed by a shell or matrix. Further disclosed herein is a process for preparing a composition-of-matter by coating particles comprising the aforementioned substance with a conductor of cations of the alkali metal, when the substance is saturated with the alkali metal, as well as electrochemical half cells and batteries including the composition-of-matter.

Electrode compositions and alkali metal batteries comprising same

An electrical energy storage device () includes a substrate (), an anode layer (), a cathode layer (), and a separator layer () between the anode layer and the cathode layer. The substrate has multiple sets of intersecting cavities () passing through the substrate in different directions. The anode layer, cathode layer, and separator layer are formed over a surface of the substrate within the cavities.

3D micro-battery on 3D-printed substrate

A composition-of-matter comprising a plurality of particles is disclosed herein, the particles comprising a compound (e.g., an element or a mixture of elements) which forms an alloy with an alkali metal and/or an alloy of an alkali metal with said compound. The alloy is characterized by reversibly releasing the alkali metal and absorbing the alkali metal. Some or all of the particles are encapsulated within a volume enclosed by a shell or matrix which conducts cations of the alkali metal, wherein a volume of the alloy upon maximal absorption of the alkali metal does not exceed the volume enclosed by a shell or matrix. Further disclosed herein is a process of preparing a composition-of-matter, which is effected by coating particles comprising an alloy saturated with the alkali metal with a conductor of cations of the alkali metal, as well as electrochemical half cells and batteries including the composition-of-matter.

Anode compositions and alkali metal batteries comprising same

The present invention provides anodes comprising an electrically conductive substrate, comprising at least one non-uniform surface; and a random network of silicon nanowires (Si NWs) chemically grown on said at least one non-uniform surface of the substrate, wherein the Si NWs have at least about 30% amorphous morphology, and methods of manufacturing of the anodes. Further provided are lithium ion batteries comprising said anodes.

High-capacity silicon nanowire based anode for lithium-ion batteries

An energy storage cell () including: an anode () formed of a molten alkali metal; an air cathode (); and an electrolyte medium () located between the anode and cathode.

Rechargeable alkali metal-air battery

Methods for forming three-layer thin-film battery (TFB) structures by sequential electrophoretic deposition (EPD) on a single conductive substrate. The TFBs may be two-dimensional or three-dimensional. The sequential EPD includes EPD of a first battery electrode followed by EPD of a porous separator on the first electrode and by EPD of a second battery electrode on the porous separator. In some embodiments of a Li or Li-ion TFB, the separator includes a Li ion conducting solid. In some embodiments of a Li or Li-ion TFB, the separator includes an inorganic porous solid rendered ionically conductive by impregnation with a liquid or polymer. In some embodiments, the TFBs are coated and sealed with an EPDd PEEK layer.

Electrophoretic deposition of thin film batteries

An electrical energy storage device () includes a substrate (), which is formed so as to define a multiplicity of micro-containers separated by electrically-insulating and ion-conducting walls (). A first plurality of anodes (A) is disposed in a first subset () of the micro-containers, and a second plurality of cathodes (C) is disposed in a second subset () of the micro-containers. The anodes and cathodes are arranged in an interlaced pattern.

3-D microbatteries based on interlaced micro-container structures

An electrical energy storage device includes a substrate having an outer surface and having a plurality of cavities communicating with the outer surface. The cavities have interior cavity surfaces. A first electrode layer is deposited at least over the interior cavity surfaces. An electrolyte separator layer is formed over the first electrode layer so as to fill the cavities and to extend over the outer surface of the planar substrate. A second electrode layer is formed over the electrolyte separator layer on the outer surface of the planar substrate.

Three-dimensional microbattery

An electrical energy storage device () includes a microchannel plate (MCP) () having channels () formed therein, the channels having surface areas. Thin films () are formed over the surface areas and define an anode (), a cathode (), and a solid electrolyte () disposed between the anode and the cathode.

Three-dimensional thin-film microbattery

The present invention provides a cathode for use in a secondary electrochemical cell, such cathode being coated with a very thin, protective film, permeable to ions. The protective film of the cathode usually has a thickness of up to about 0.1 &mgr;m and it provides protection against high voltage charging and overdiscbarging. The present invention further provides a secondary electrochemical cell comprising such a cathode.

Long cycle-life alkali metal battery

A composite solid electrolyte having a transference number above 0.5 for use in primary or secondary electrochemical cells. The solid electrolyte includes non-conductive oxide particles, of less than 5 microns in size, an alkali metal salt coating or in contact with these particles, an insulating elastomer forming a complex with the salt, and a solvent. Batteries and multi-cell batteries contain such solid electrolyte, and such batteries can be assembled with the cathod in the discharged state.

Growing community of inventors

Rishon Lezion, Israel

Diana Golodnitsky