Ut-battelle, Inc.

Sreekanth Pannala

Chaitanya Kumar Narula

Nancy Johnston Dudney

Jagjit Nanda

Surendra Kumar Martha

Raymond Robert Unocic

James William Klett

Keith Douglas Kepler

Hsin Wang

Srikanth Allu

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 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 lithium ion battery includes a cathode in electrical and thermal connection with a cathode current collector. The cathode current collector has an electrode tab. A separator is provided. An anode is in electrical and thermal connection with an anode current collector. The anode current collector has an electrode tab. At least one of the cathode current collector and the anode current collector comprises a thermal tab for heat transfer with the at least one current collector. The thermal tab is separated from the electrode tab. A method of operating a battery is also disclosed.

Thermal management for high-capacity large format Li-ion batteries

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.

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Knoxville, TN, United States of America

Sreekanth Pannala