Ut-battelle, Inc.

Ford Global Technolgoies, LLC

Jagjit Nanda

Nancy Johnston Dudney

Surendra Kumar Martha

Chaitanya Kumar Narula

Frank M Delnick

Tomonori Saito

Chengdu Liang

Gabriel M Veith

Sreekanth Pannala

Rose E Ruther

Yoongu Kim

Ilias Belharouak

Pengfei Cao

Raymond Robert Unocic

Ethan C Self

James William Klett

Jianlin Li

Ramesh R Bhave

Brian L Bischoff

Michael Naguib Abdelmalak

Avra Brahma

Michelle Lehmann

Nitin Muralidharan

Marissa Wood

Devendrasinh Udaisinh Darbar

Chengyu Mao

Che-Nan Sun

A solid electrolyte composition comprising the following components: (i) an organic polymer comprising a polymeric backbone and pendant groups, wherein at least a portion of the pendant groups contain an anionic group associated with a first metal ion; (ii) a solvent homogeneously incorporated in the polymer to result in a polymer gel system; and (iii) a metal salt dissolved in the solvent in a molar concentration of 0.05 M to 1.5 M and containing a second metal ion associated with an anion, provided that the first and second metal ions are the same. Also described herein are solid-state batteries comprising: a) an anode; (b) a cathode; and (c) the solid electrolyte composition described above.

High ionic conductivity polymer electrolyte compositions for alkali and beyond alkali metal batteries

A cathode for a lithium battery includes LiNiMnMOwhere M is at least one selected from the group consisting of Mo, Ti, Cr, Zr and V, and x is between 0.005-0.02. The LiNiMnMOcan be coated with MnPO. The MnPOcan be 1-3 wt. %, based on the total weight of the LiNiMnMOand MnPO. A cathode composition, a lithium battery, and a method of making a lithium battery are also disclosed.

Early transition metal stabilized high capacity cobalt free cathodes for lithium-ion batteries

A cathode and a battery providing the cathode is provided. The cathode comprises a lithium metal oxide. The lithium metal oxide comprises nickel, aluminum, and iron. The lithium metal oxide is substantially free of cobalt. The battery comprises an anode, the cathode, a separator, and an electrolyte.

Cobalt-free layered oxide cathodes

A battery includes a redox flow anode chamber coupled to an anode current collector, a separator, and an external container in fluid connection with the redox flow anode chamber. The external container has therein a solid phosphorus material. A first redox-active mediator and the second redox-active mediator are circulated through the half-cell electrode chamber and the external container. During a charging cycle the first redox-active mediator is reduced at the current collector electrode and the reduced first mediator reduces the phosphorus material, and wherein during a discharging cycle the second redox-active mediator is oxidized at the anode current collector electrode, and the second redox-active mediator is then reduced by the reduced phosphorus material. A method of operating a battery and a method of making a battery are also discussed.

High capacity organic radical mediated phosphorous anode for redox flow batteries

A graft copolymer composition comprising the following structure: wherein: Arepresents a polymer backbone having a number of polymerized monomer units x; [B] represents a multiplicity of a graft polymer side chain having a number of polymerized monomer units y, and at least a portion of the monomer units in Bcontains a group &#x2014;C(O)OM, with M independently selected from H and alkali metals; [C] represents a multiplicity of positions on the polymer backbone Awhere the graft polymer side chain B or any other graft polymer side chain is not attached; the subscript w represents a grafting density of the group B, wherein w is an integer within a range of 10-50%; and the subscript z represents a density of the group C, wherein z=(100&#x2212;w) %. The invention is also directed to lithium-ion batteries in which the above-described composition is incorporated in an anode of the battery.

Block graft copolymer binders and their use in silicon-containing anodes of lithium-ion batteries

A lithium ion battery includes a positive electrode comprising carbon fibers, a binder composition with conductive carbon, and a lithium rich composition. The lithium rich composition comprises at least one selected from the group consisting of Li(My MzMw)Owhere x+y+z+w=, and where M, Mand Mare interchangeably manganese, nickel and cobalt, and LiM*M*O, where M* and M*are manganese and nickel, respectively, with x=. A negative electrode comprises carbon fibers having bound thereto silicon nanoparticles, and a mesophase pitch derived carbon binder between the silicon nanoparticles and the carbon fibers. An electrolyte is interposed between the positive electrode and the negative electrode. Methods of making positive and negative electrodes are also disclosed.

High energy density secondary lithium batteries

A crosslinked polymer composition comprising: (i) a base polymer containing a multiplicity of at least one type of functional group selected from amino, amido, thiol, carboxylic acid, carboxylic acid ester, and epoxy groups; (ii) a multiplicity of hydroxylated benzene rings covalently linked to the base polymer, wherein each hydroxylated benzene ring contains at least two hydroxy groups, and with at least two of the hydroxy groups on said hydroxylated benzene rings being free as OH groups; and (iii) a multiplicity of crosslinking groups that crosslink at least two of said functional groups in the base polymer. The invention is also directed to lithium-ion batteries in which the above-described composition is incorporated in an electrode of the battery, and also directed to methods of operating a lithium-ion battery in which the above-described crosslinked polymer composition is incorporated in an electrode thereof.

Crosslinked functional binders and their use in silicon-containing anodes of lithium-ion batteries

A supercapacitor according to the present invention includes a negative carbon-comprising electrode which does not intercalate sodium, and a positive carbon-comprising electrode. An electrolyte composition comprises sodium hexafluorophosphate and a non-aqueous solvent comprising at least one selected from the group consisting of ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, and tetraethylene glycol dimethyl ether. The supercapacitor has an electrochemical voltage window of from +0.0 V to 3.5 V (full cell voltage). The electrolyte has an electrochemical voltage window of from +0.05 V to 3.9 V vs. Na/Na+. A method of making and a method of operating a supercapacitor is also disclosed.

High voltage window electrolyte for supercapacitors

A lithium ion battery includes an anode and a cathode. The cathode includes a lithium, manganese, nickel, and oxygen containing compound. An electrolyte is disposed between the anode and the cathode. A protective layer is deposited between the cathode and the electrolyte. The protective layer includes pure lithium phosphorus oxynitride and variations that include metal dopants such as Fe, Ti, Ni, V, Cr, Cu, and Co. A method for making a cathode and a method for operating a battery are also disclosed.

Lipon coatings for high voltage and high temperature Li-ion battery cathodes

A lithium ion battery includes a positive electrode comprising carbon fibers, a binder composition with conductive carbon, and a lithium rich composition. The lithium rich composition comprises at least one selected from the group consisting of Li(My MzMw)Owhere x+y+z+w=1, and xLiMnO(1&#x2212;x)LiMO, where x=0.2-0.7, and where M, Mand Mare interchangeably manganese, nickel and cobalt, and LiMMO, where M and Mare manganese and nickel, respectively, with x=0.5. A negative electrode comprises carbon fibers having bound thereto silicon nanoparticles, and a mesophase pitch derived carbon binder between the silicon nanoparticles and the carbon fibers. An electrolyte is interposed between the positive electrode and the negative electrode. Methods of making positive and negative electrodes are also disclosed.

A supercapacitor and a related electrolyte composition suitable for use in a supercapacitor are provided. An electrolyte composition can include a conductive sodium salt component comprising NaTFSI and a non-aqueous solvent component comprising dimethoxy ethane (DME). The conductive sodium salt component and the non-aqueous solvent component can be present at a molar ratio of NaTFSI:DME of 1:1 to 1:3, inclusive.

Electrolytes for supercapacitors

A cathode for a metal air battery includes a cathode structure having pores. The cathode structure has a metal side and an air side. The porosity decreases from the air side to the metal side. A metal air battery and a method of making a cathode for a metal air battery are also disclosed.

Growing community of inventors

Knoxville, TN, United States of America

Jagjit Nanda