Gm Global Technology Operations LLC

University of California

The University of Western Ontario

Chinese Academy of Sciences

The Administrators of the Tulane Educational Fund

Sun Yat-senuniversity

Tulane University

Shanghai Winning Energy Technology Corp. Ltd

Tulane University; Administrators of the Tulane Education Fund

Mei Cai

Fang Dai

Li Yang

Xingcheng Xiao

Anne M Dailly

Qiangfeng Xiao

Mahmoud H Abd Elhamid

Meinan He

Shuru Chen

Yunfeng Lu

Martin S Ruthkosky

Mark William Verbrugge

Gayatri Vyas Dadheech

Xueliang Sun

Ruying Li

Arianna T Morales

Hongliang Wang

Biqiong Wang

Sherman H Zeng

Jingmei Shen

June-Sang Siak

Jerry Dale Rogers

Xiaosong Huang

Meng Jiang

Nicholas Edward Sargent

Thomas A Yersak

Hiesang Sohn

Zhongyi Liu

Michael Kevin Carpenter

Tao Wang

Jin Liu

Robert M Lapierre

Ruchira Dharmasena

Yuqin Zhou

Hao Liu

Lee Lizhong Feng

Yong Li

Wenjie Shen

Gongshin Qi

Ion C Halalay

Wayne Cai

Qinglin Zhang

Richard M Schreck

Yingnan Dong

Weidong Zhou

Fang Liu

Jiagang Xu

Qingyuan Hu

Gaixia Zhang

Shuhui Sun

Fan Xu

Keegan Adair

Alan Jon Jacobsen

Wei Zhou

John J Vajo

Michael P Balogh

Shifang Li

James R Salvador

Belabbes Merzougui

Bing Li

Bob Ross Powell

Andrew Mark Mance

Thomas L Gibson

Kushal Narayanaswamy

Yang T Cheng

Jihui Yang

Herman K Phlegm

Frederick T Wagner

Nelson A Kelly

Yue Fan

Wen Li

Wei Zeng

Long Jiang

Gongquan Sun

Thomas C Pederson

Sheila Farrokhalaee Kia

Ronald O Grover, Jr

Swathy Swathirajan

Zheng Chen

John T Johnson

Prasad N Gadgil

Zhongying Shi

Jinming Liu

Francis R Stabler

Peng Lu

Qin Xin

Yangbing Zeng

Michael D Richardson

Li Shen

Gordon Alwin Tooley

Gregory Charles Garabedian

William Thomas Whited

Matthew Beckner

Martin P Sulic

Mengyuan Chen

Daniel E Rodak

Prabjot Nanua

Todd J Gordon

Richard Harry Krentz

Andrew J Galant

Methods for forming sulfur polyacrylonitrile are provide. In certain variations, the method includes contacting sulfur and polyacrylonitrile to form an admixture, sealing a container holding the admixture, heating the admixture to a first temperature venting the container holding the admixture to release gases generated during the heating of the admixture to the first temperature, re-sealing the container holding the admixture, and heating the admixture to a second temperature. In other variations, the method includes contacting sulfur and polyacrylonitrile to form an admixture, heating the admixture to a first temperature, sealing a container holding the admixture, and heating the admixture to a second temperature. The second temperature is greater than the first temperature.

Method for preparing sulfur-polyacrylonitrile (SPAN)

Methods of making functional particles, such as functional lithium ion-exchanged zeolite particles and functional electrode particles for electrochemical cells are provided as well as electrochemical cells including such particles. A method includes combining a solution including (NH)POwith lithium ion-exchanged zeolite particles to form a first mixture. The method further includes adding a polymeric binder and a lithium salt to the first mixture to form a first slurry including the functional lithium ion-exchanged zeolite particles comprising LiPO.

Processes for preparing functional particles for use in electrochemical cells and electrochemical cells including said functional particles

A positive electrode including a plurality of electroactive particles defining an electroactive layer is provided. A first lithium-containing coating is disposed on one or more surfaces of the electroactive layer. The first lithium-containing coating covers between about 30% and about 50% of a total exposed surface area of the electroactive layer. A second lithium-containing coating encompasses at least one electroactive particle of the plurality of electroactive particles. The second lithium-containing coating covers between about 95% and about 100% of the at least one electroactive particle. The first and second lithium-containing coatings each have a thickness between about 0.2 nm and about 5 nm. The positive electrode further includes an electrolyte additive that aids in the formation of a first passivation layer on exposed surfaces of the first lithium-containing coating, and a second passivation layer on exposed surfaces of the second lithium-containing coating.

Lithium-containing coatings for cathode materials

A system for coating a separator for a battery includes a separator feed and collection assembly configured to dispense the separator, a coating distribution device configured to flow a coating material toward the separator, and an electric field generator configured to generate an electric field in a gap between the coating distribution device and the separator.

Method of using an electric field for roll-to-roll separator coating

A thermal barrier component for an electrochemical cell according to various aspects of the present disclosure includes a functional material. The functional material includes at least one of a hydrate of a metal carbonate and a hydrate of a metal phosphate. The functional material is configured to release water vapor at a first temperature of greater than or equal to about 100° C. and decompose to release a gaseous fire retardant at a second temperature of greater than or equal to about 300° C. Another thermal barrier component according to various aspects of the present disclosure includes a hydrate and a fire retardant. The hydrate is configured to release water in an amount greater than or equal to about 1 kg at a first temperature of greater than or equal to about 100° C. The fire retardant is configured to decompose at a second temperature of greater than or equal to about 300° C.

Thermal barrier components including hydrates for mitigating thermal runaway in batteries

A thermal barrier component for an electrochemical cell (e.g., a battery) includes a mat, a functional material, and a polymer binder. The mat includes a porous matrix. The functional material is in pores of the porous matrix. The functional material includes an oxide. In certain aspects, the functional material may be a composite material. The polymer binder is in contact with the porous matrix and the functional material. At least one of the porous matrix, the functional material, and the polymer binder is configured to serve as an intumescent carbon source. The oxide is configured to catalyze thermal degradation of the intumescent carbon source to form intumescent carbon at a first temperature. The first temperature is greater than or equal to about 300° C. The thermal barrier component is configured to mitigate thermal runaway in an electrochemical cell. The thermal barrier component may include one or more layers.

Thermal barrier component for mitigating thermal runaway in batteries

A method for manufacturing an interfacial lithium fluoride layer for an electrochemical cell that cycles lithium ions is disclosed. In the method, a substrate is positioned in a reaction chamber of an atomic layer deposition reactor and a lithium fluoride (LiF) precursor is introduced into the reaction chamber such that the LiF precursor contacts and chemically reacts with functional groups on the substrate. Then, an oxidant is introduced into the reaction chamber to form a single molecular layer of lithium fluoride on the substrate. The lithium fluoride layer is formed on the substrate at a temperature of greater than or equal to about 110 degrees Celsius to less than or equal to about 250 degrees Celsius.

Method for manufacturing an interfacial lithium fluoride layer for an electrochemical cell

An electrode for an electrochemical cell is provided. The electrode includes a carbon membrane having a first face and an opposing second face, wherein at least a portion of the carbon membrane is modified to include an elevated number of nucleation sites for lithium relative to the carbon membrane when unmodified.

Electrode architecture for fast charging

An electrode component for an electrochemical cell is provided herein. The electrode component includes a current collector having a first surface, a metal oxide layer disposed on the first surface of the current collector, and a lithium-containing layer bonded to the first surface of the current collector. The metal oxide layer includes a plurality of features. A method for manufacturing such an electrode component is also provided herein. The method includes directing a laser beam toward the first surface of the current collector in the presence of oxygen to form the metal oxide layer on the first surface and applying the lithium-containing layer to the metal oxide layer thereby bonding the lithium-containing layer with the current collector.

Electrode components with laser induced surface modified current collectors and methods of making the same

A battery system includes an enclosure having opposed first and second major walls, a perimetral wall connecting the first and second major walls along respective perimeters thereof, and an interior defined by the first and second major walls and the perimetral wall, wherein the enclosure is configured for containing an anode assembly, a cathode assembly and an electrolyte within the interior. A longitudinal embossment is formed in the perimetral wall extending outward from the interior and extending along opposed adjacent portions of the first and second perimeters. A wall port is defined in the perimetral wall in fluid communication with the interior, wherein the wall port is configured for permitting flow of the electrolyte therethrough into and out of the interior. First and second electrodes extend through the perimetral wall and are configured for electrical connection with the anode assembly and cathode assembly, respectively.

Battery system, battery pack handling system and electrolyte evacuation and refill station

Lithium ion-exchanged zeolite particles and methods of making such lithium ion-exchanged zeolite particles are provided herein. The method includes combining precursor zeolite particles with (NH)POto form a first mixture including intermediate zeolite particles including NHcations. The method further includes adding a lithium salt to the first mixture to form the lithium ion-exchanged zeolite particles, or separating the intermediate zeolite particle from the first mixture and combining the intermediate zeolite particles with the lithium salt to form the lithium ion-exchanged zeolite particles.

Lithium ion-exchanged zeolite particles including lithium phosphate within cage, electrochemical cell, and method of making the same

A system for measuring a thickness of a coating arranged on an anode substrate includes an optical measurement system configured to transmit a light signal having a known first polarization toward the anode substrate through the coating such that the light signal is reflected from the surface of the anode substrate, a detection module positioned to receive the reflected light signal and configured to determine a second polarization of the reflected light signal that is different from the first polarization and measure a polarization difference between the first polarization and the second polarization, and a measurement module configured to receive the measured polarization difference, calculate the thickness of the coating based on the measured polarization difference, and generate an output based on the calculated thickness.

Contactless method for polymer coating thickness measurement

An electrolyte for a lithium metal battery including a nonaqueous aprotic organic solvent and a lithium salt dissolved or ionized in the nonaqueous aprotic organic solvent. The nonaqueous aprotic organic solvent includes a cyclic carbonate, an acyclic carbonate, and an acyclic fluorinated ether. The lithium salt includes an aliphatic fluorinated disulfonimide lithium salt.

Lithium metal battery electrolytes and electrochemical cells including the same

An example of a negative electrode includes silicon nanoparticles having a carbon coating thereon. The carbon coating has an oxygen-free structure including pentagon rings. The negative electrode with the silicon nanoparticles having the carbon coating thereon may be incorporated into a lithium-based battery. In an example of a method, silicon nanoparticles are provided. A carbon precursor is applied on the silicon nanoparticles. The carbon precursor is an oxygen-free, fluorene-based polymer. Then the silicon nanoparticles are heated in an inert gas atmosphere to form the carbon coating on the silicon nanoparticles. The carbon coating formed on the silicon nanoparticles has an oxygen-free structure including pentagon rings.

Negative electrode including silicon nanoparticles having a carbon coating thereon

The present disclosure provides an electrolyte system for an electrochemical cell that cycles lithium ions. The electrolyte system may include an aliphatic fluorinated disulfonimide lithium salt in a mixture of organic solvents. The mixture of organic solvents may include a first solvent and a second solvent. The first solvent may include an ether solvent, a carbonate solvent, or a mixture of ether and carbonate solvents. The second solvent may include a fluorinated ether. A molar ratio of the aliphatic fluorinated disulfonimide lithium salt to the first solvent may be greater than or equal to about 1:1.2 to less than or equal to about 1:2. A molar ratio of the first solvent to the second solvent may be greater than or equal to about 1:1 to less than or equal to about 1:4.

Electrolytes for electrochemical cells

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Bloomfield Hills, MI, United States of America

Mei Cai