Sila Nanotechnologies, Inc.

Georgia Tech Research Corporation

Clemson University

US Government As Represented by the Secretary of the Army

Binergy Scientific, Inc.

Gleb Yushin

Bogdan Z Zdyrko

Eugene Michael Berdichevsky

Alexander Thomas Jacobs

Igor Luzinov

Oleksandr Magazynskyy

Kara Linn Evanoff

Adam Kajdos

Hyea Kim

Benjamin Hertzberg

Patrick Dixon

Kostiantyn Turcheniuk

Alper Nese

Justin Yen

Addison Shelton

Eerik Torm Hantsoo

Justin Doane

Vojtech Svoboda

Laura Gerber

Ashleigh Ward

George Pius Gomes

Damian Harris

Jens Steiger

Samik Jhulki

Yuriy Bandera

James Benson

Naoki Nitta

Yiran Xiao

Gene Berdichevsky

Feixiang Wu

Danni Lei

Alexandre Magasinski

Igor Kovalenko

Matthew Clark

John Roudebush

Fujia Wang

Austin Sendek

Gregory Roberts

Nicholas Ingle

Mareva Fevre

Oleg A Borodin

Bogdan Zydrko

Ah-Young Song

Valentin Lulevich

Saujan Sivaram

Timothy Milakovich

Viacheslav Iablokov

Daniel Gordon

Weimin Wang

Wenbin Fu

Eniko Zsoldos

Eric Lachman

Kyle Kulinski

Wenqiang Hu

Emma Foxly

Elif Gurbuz

Nicholas Werth

Fezzeh Pouraghajansarhamami

William Elliott Gent

Michael Lee Pegis

Anton Klipkov

Volodymyr Ahunovych

Fumitomo Hide

Kara Evanoff

Batteries such as Li-ion batteries are provided that comprise anode and cathode electrodes, an electrolyte ionically coupling the anode and the cathode, and a separator electrically separating the anode and the cathode. In some designs, the electrolyte may comprise, for example, a mixture of (i) a Li-ion salt with (ii) at least one other metal salt having a metal with a standard reduction potential below −2.3 V vs. Standard Hydrogen Electrode (SHE). In other designs, the electrolyte may be disposed in conjunction with an electrolyte solvent that comprises, for example, about 10 to about 100 wt. % ether. In still other designs, the battery may further comprise anode and cathode interfacial layers (e.g., solid electrolyte interphase (SEI)) disposed between the respective electrode and the electrolyte and having different types of fragments of electrolyte solvent molecules as compared to each other.

Complex electrolytes and other compositions for metal-ion batteries

A battery electrode composition is provided that comprises composite particles. Each composite particle may comprise, for example, active fluoride material and a nanoporous, electrically-conductive scaffolding matrix within which the active fluoride material is disposed. The active fluoride material is provided to store and release ions during battery operation. The storing and releasing of the ions may cause a substantial change in volume of the active material. The scaffolding matrix structurally supports the active material, electrically interconnects the active material, and accommodates the changes in volume of the active material.

Fluorides in nanoporous, electrically-conductive scaffolding matrix for metal and metal-ion batteries

In an aspect, a Li-ion cell may comprise a densified electrode exhibiting an areal capacity loading of more than about 4 mAh/cm. For example, the densified electrode may a first electrode part arranged on a current collector and a second electrode part on top of the first electrode part, the second electrode part of the at least one densified electrode having a higher porosity than the first electrode part of the at least one densified electrode. In some designs, the densified electrode may be fabricated by densifying electrode layers via a pressure roller while maintaining a contacting part of the pressure roller at a temperature that is less than a temperature of the second electrode part. In some designs, the applied pressure is a time-varying (e.g., frequency modulated) pressure. In some designs, a drying time for a slurry to produce the densified electrode may range from around 1-120 seconds.

Densified battery electrodes and methods thereof

An embodiment is directed to a solid state electrolyte-comprising Li or Li-ion battery cell, comprising an anode electrode, a cathode electrode with an areal capacity loading that exceeds around 3.5 mAh/cm, an ionically conductive separator layer that electrically separates the anode and cathode electrodes, and one or more solid electrolytes ionically coupling the anode and the cathode, wherein at least one of the one or more solid electrolytes or at least one solid electrolyte precursor of the one or more solid electrolytes is infiltrated into the solid state Li or Li-ion battery cell as a liquid.

Liquid-infiltrated solid-state electrolyte and rechargeable batteries comprising same

In an embodiment, a Li-ion battery cell comprises an anode electrode with an electrode coating that (1) comprises Si-comprising active material particles, (2) exhibits an areal capacity loading in the range of about 3 mAh/cmto about 12 mAh/cm, (3) exhibits a volumetric capacity in the range from about 600 mAh/cc to about 1800 mAh/cc in a charged state of the cell, (4) comprises conductive additive material particles, and (5) comprises a polymer binder that is configured to bind the Si-comprising active material particles and the conductive additive material particles together to stabilize the anode electrode against volume expansion during the one or more charge-discharge cycles of the battery cell while maintaining the electrical connection between the metal current collector and the Si-comprising active material particles.

Anode electrode composition of Li-ion battery cell

A metal or metal-ion battery composition is provided that comprises anode and cathode electrodes along with an electrolyte ionically coupling the anode and the cathode. At least one of the electrodes includes active material particles provided to store and release ions during battery operation. Each of the active material particles includes internal pores configured to accommodate volume changes in the active material during the storing and releasing of the ions. The electrolyte comprises a solid electrolyte ionically interconnecting the active material particles.

Electrodes including solid electrolyte ionically interconnecting porous active material particles and methods of fabricating the same

Battery electrode compositions are provided comprising core-shell composites. Each of the composites may comprise, for example, an active material, a collapsible core, and a shell. The active material may be provided to store and release metal ions during battery operation, whereby the storing and releasing of the metal ions causes a substantial change in volume of the active material. The collapsible core may be disposed in combination with the active material to accommodate the changes in volume. The shell may at least partially encase the active material and the core, the shell being formed from a material that is substantially permeable to the metal ions stored and released by the active material.

Multi-shell structures and fabrication methods for battery active materials with expansion properties

Metal-ion battery cells are provided that take advantage of the disclosed 'doping' process. The cells may be fabricated from anode and cathode electrodes, a separator, and an electrolyte. A metal-ion additive may be incorporated into (i) one or more of the electrodes, (ii) the separator, or (iii) the electrolyte. The metal-ion additive provides additional donor ions corresponding to the metal ions stored and released by anode and cathode active material particles. An activation potential may then be applied to the anode and cathode electrodes to release the additional donor ions into the battery cell.

Electrolyte or electrode additives for increasing metal content in metal-ion batteries

A Li-ion battery cell, among other materials, components, and techniques, is provided that includes ion-permeable anode and cathode electrodes, an electrolyte ionically coupling the anode and the cathode, a separator electrically separating the anode and the cathode, and a sacrificial, high-capacity Li composition for providing Li to at least one of the electrodes.

Ion permeable composite current collectors for metal-ion batteries and cell design using the same

A battery electrode composition is provided that comprises composite particles. Each of the composite particles in the composition (which may represent all or a portion of a larger composition) may comprise a porous electrode particle and a filler material. The porous electrode particle may comprise active material provided to store and release ions during battery operation. The filler material may occupy at least a portion of the pores of the electrode particle. The filler material may be liquid and not substantially conductive with respect to electron transport.

Protection of battery electrodes against side reactions

In an embodiment, metal-organic nanowires or nanofibers comprising polymer chains with around 100 or more repeat units are synthesized. The metal-organic nanowires or nanofibers are exposed to a reactive gas at a temperature in excess of around 100° C. and at a pressure in the range from around 0.001 to around 100 atmospheres.

Nanowire structures and methods of manufacture thereof

An aspect is directed to a vaccine adjuvant including a nanofiber that comprises an oxide or a salt of one, two, three or more metals selected from the group of Al, Ca, Mg, Li, Na, K, La, Y, Si, Fe and Zn. Another aspect is directed to a porous scaffold or a porous membrane that comprises nanofibers comprising an oxide or a salt of one, two, three or more metals selected from the group of Al, Ca, Mg, Li, Na, K, La, Y, Si, Fe and Zn, where the porous scaffold or the porous membrane is configured for use in an environment where the nanofibers are exposed to a direct contact with extracellular body fluids.

Nanofiber compositions for a vaccine adjuvant, porous scaffold or porous membrane

In an embodiment, a Li-ion battery electrode comprises a conductive interlayer arranged between a current collector and an electrode active material layer. The conductive interlayer comprises first conductive additives and a first polymer binder, and the electrode active material layer comprises a plurality of active material particles mixed with a second polymer binder (which may be the same as or different from the first polymer binder) and second conductive additives (which may be the same as or different from the first conductive additives). In a further embodiment, the Li-ion battery electrode may be fabricated via application of successive slurry formulations onto the current collector, with the resultant product then being calendared (or densified).

Electrode with conductive interlayer and method thereof

An embodiment is directed to an electrode composition for use in an energy storage device cell. The electrode comprises composite particles, each comprising carbon that is biomass-derived and active material. The active material exhibits partial vapor pressure below around 10torr at around 400 K, and an areal capacity loading of the electrode composition ranges from around 2 mAh/cmto around 16 mAh/cm.

Battery electrode composition comprising biomass-derived carbon

Aspects relate to a method of particle fabrication, comprising mixing at least one stabilizing compound with an aqueous solution to produce a first mixture, mixing furfuryl alcohol, a derivative of furfuryl alcohol, or a mixture thereof, into the first mixture to produce a second mixture, heating the second mixture, mixing a surfactant comprising an acid moiety (e.g., an alkylbenzene sulfonic acid) and the second mixture to produce a third mixture, initiating a polycondensation reaction of the furfuryl alcohol, the derivative of the furfuryl alcohol, or the mixture thereof, in the third mixture to produce polymer (or polymer-derived) particles comprising polyfurfuryl alcohol, and (optionally) defining or modifying the glass transition temperature of the polymer or polymer-derived particles comprising polyfurfuryl alcohol.

Polymer and polymer-derived particles comprising polyfurfuryl alcohol and methods thereof

Growing community of inventors

Atlanta, GA, United States of America

Gleb Yushin