International Business Machines Corporation

Globalfoundries Inc.

Korea Research Institute of Chemical Technology

Sk on Co., Ltd.

San Diego State University Research Foundation

Repsol, S.a.

Daimler Ag

Central Glass Company, Limited

King Abdulaziz City for Science and Technology

Young-Hye Na

Jangwoo Kim

Robert Dennis Miller

Geraud J Dubois

Ratnam Sooriyakumaran

Ankit Vora

Joseph Sly

Robert David Allen

Ran Wang

Daniel Sanders

Joy Cheng

Jacquana T Diep

Andy Theodora Tek

Wai-Kin Li

Kafai Lai

Ho-Cheol Kim

Charles Thomas Rettner

Victoria A Piunova

Maxwell Giammona

Alshakim Nelson

Younes Ansari

John Campbell Scott

Khanh Tuan Nguyen

Lianna C Samuel

Da Yang

Sogol Teschler

Sogol Yahyazadeh

Victor Y Lee

Blake W Davis

Jed Walter Pitera

Yongku Kang

Tobias Glossmann

Anthony Fong

Naga Phani Babu Aetukuri

Daniel Stillman

Radwan A Alrasheed

Majed S Nassar

Eunseok Lee

Amaresh Samuthira Pandian

Devendra K Sadana

James L Hedrick

Joel Pereira De Souza

Hiroshi Ito

Gregory Michael Wallraff

Gregory Breyta

Linda Karin Sundberg

Hoa D Truong

John C Collins

William Dinan Hinsberg

Dong Wook Kim

Jung Don Suk

Katsutoshi Suzuki

Kazunari Takeda

Naga Phani B Aetukuri

Yumi Kim

Masafumi Oda

Tsubasa Itakura

Do Youb Kim

Sho Yamazawa

Francisco José Alia Moreno-Ortiz

Francisco José Alía Moreno-Ortiz

Phillip Medina

Holt Bui

Masaki Fujiwara

Daniel Paul Sanders

Wai-Kim c/o Ibm United Kingdom Limited Li

Kazuhiro Yamanaka

A battery includes an anode; an electrolyte including an oxidizing gas; a metal halide that functions as an active cathode material; and a solvent including a nitrile compound; and a current collector contacting the cathode material.

Rechargeable metal halide battery

A rechargeable metal halide battery shows increased metal halide utilization with the introduction of electronegative heteroatom-enriched conductive additives into a metal halide cathode incorporated into an electrically conductive material. The electronegative heteroatom-enriched conductive additives include nitrogen-doped carbon, such as nitrogen-doped single layer graphene, and oxygen-enriched carbon, such as acid-treated carbon black. The modified batteries utilize 20-30% more metal halide than unmodified batteries resulting in enhanced specific capacity and energy density.

Metal halide cathode with enriched conductive additive

An energy storage device includes a coated anode. The coated anode includes a metallic anode in contact with an electrically non-conductive star polymer coating. The star polymers in the star polymer coating include a core with at least 3 arms attached to the core. At least some of the arms of the star polymers have ionically conductive polar functional groups. The energy storage device further includes a cathode and an electrolyte in contact with both the cathode and the coated anode.

Coated electrode for energy storage device

A rechargeable metal halide battery fabricated with a liquid nitrogen treated metallic anode demonstrates a stable cycle life with a slow rate of degradation and high discharge capacity in comparison to battery cells with untreated anodes. The anode, which may be an alkali metal and/or an alkaline earth metal, is pretreated with the liquid nitrogen prior to formation in a battery stack. The liquid nitrogen treatment forms a metal nitride on a surface of the anode that (i) increases the surface area of the anode, (ii) acts as a passivation layer that prevents detrimental SEI-forming side reactions that degrade anodes, and (iii) suppresses dendrite growth. Where the anode is lithium, the metal nitride is lithium nitride (LiN).

Method to protect a lithium metal anode in a rechargeable lithium metal battery

An energy storage device includes an anode; a cathode; an electrolyte in contact with both the anode and the cathode; and an electrically non-conductive, porous separator between the anode and the cathode. At least one major surface of the porous separator includes a coating with a layer having a star polymer. The star polymer includes a hydrophobic core and at least three arms, wherein at least some of the arms includes ion-conductive polar functional groups.

Coated separator for energy storage device

A hybrid solid-state electrolyte is disclosed. The hybrid solid-state electrolyte includes an inorganic ion-conducting membrane. The hybrid solid-state electrolyte further includes a first layer of an organic liquid solution surrounding a surface of the inorganic ion-conducting membrane. The hybrid solid-state electrolyte further includes a second layer of an ion-conducting polymer surrounding the first layer of the organic liquid solution.

Method to reduce interfacial resistance of hybrid solid-state electrolytes for secondary energy storage devices

A device includes an ion-conducting membrane with ion-conducting ceramic particles, and an ion-conducting polymer that surrounds the ion-conducting membrane. The ion-conducting polymer includes a pressure-deformable film with a glass transition temperature lower than an operation temperature of the device.

Composite solid electrolytes for rechargeable energy storage devices

Disclosed is a rapid, reproducible solution-based method to synthesize solid sodium ion-conductive materials. The method includes: (a) forming an aqueous mixture of (i) at least one sodium salt, and (ii) at least one metal oxide; (b) adding at least one phosphorous precursor as a neutralizing agent into the mixture; (c) concentrating the mixture to form a paste; (d) calcining or removing liquid from the paste to form a solid; and (e) sintering the solid at a high temperature to form a dense, non-porous, sodium ion-conductive material. Solid sodium ion-conductive materials have electrochemical applications, including use as solid electrolytes for batteries.

Facile synthesis of solid sodium ion-conductive electrolytes

A metal-oxygen battery includes a catholyte with: (i) carbon black; and, (ii) at least one of graphite and graphene, wherein said at least one of graphite and graphene constitutes between 0 wt % and 30 wt % of the total carbon in the catholyte.

Catholyte for metal-oxygen battery

A method includes applying to a substrate a solution including a polymeric compound to form a release layer on the substrate; applying ion-conducting elements on the release layer; applying a matrix polymer on the release layer, wherein the matrix polymer surrounds at least some of the ion-conducting elements; and removing the release layer to separate the matrix polymer from the substrate such that the ion-conducting elements remain embedded in a carrier layer of the matrix polymer and form an ion-conducting membrane.

Release layer for preparation of ion-conducting membranes

A rechargeable metal halide battery with an optimized active cathode electrolyte solution has high energy density and does not require charging following fabrication. The optimized active cathode electrolyte solution includes (i) a mixture of a metal halide and its corresponding halogen dissolved in an organic solvent at a concentration ratio greater than 0.5 and (ii) an oxidizing gas. The organic solvent is a nitrile-based compound and/or a heterocyclic compound. Glyme may be added to the organic solvent to improve battery performance.

Liquid cathode formulation for rechargeable metal halide battery

A battery includes a cathode with a metal halide and an electrically conductive material, wherein the metal halide acts as an active cathode material; a porous silicon anode with a surface having pores with a depth of about 0.5 microns to about 500 microns, and a metal on the surface and in at least some of the pores thereof; and an electrolyte contacting the anode and the cathode, wherein the electrolyte includes a nitrile moiety.

Porous silicon anode for rechargeable metal halide battery

An energy storage device includes an anode; a cathode; an electrolyte in contact with both the anode and the cathode; and an electrically non-conductive separator between the anode and the cathode. The separator includes a membrane having a plurality of voids, wherein at least some of the voids are partially filled with inorganic particles, and wherein the inorganic particles exhibit a shear modulus greater than the shear modulus of the membrane.

Separator for energy storage device

A battery includes an anode, an electrolyte including a solvent and at least one ion conducting salt, and a cathode including a metal halide salt incorporated into an electrically conductive material. The electrolyte is in contact with the anode, the cathode, and an oxidizing gas.

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San Jose, CA, United States of America

Young-Hye Na