University of Southern California

California Institute of Technology

Sri R Narayan

Bo Yang

Lena Hoober-Burkhardt

Sankarganesh Krishnamoorthy

Robert Aniszfeld

G K Surya Prakash

Surya G K Prakash

Advaith Murali

Archith Nirmalchandar

Charles C Hays

Debanjan Mitra

Souradip Malkhandi

Aswin Manohar

Andrew Kindler

Travis J Williams

Surya G Prakash

Zhiyao Lu

Gk Surya Prakash

Derek Moy

Ahamed Irshad Maniyanganam

Phong Thanh Trinh

Chenguang Yang

Surya GK Prakash

An electrode for a battery includes an iron-containing substrate and a cobalt ferrite layer disposed over the iron-containing substrate. Advantageously, the cobalt ferrite layer inhibits corrosion of the iron-containing substrate. A nickel hydroxide layer is disposed over the cobalt ferrite layer. A battery incorporating the electrode is also provided.

Low-cost surface-protected iron-based substrates for the nickel hydroxide electrode in alkaline batteries

An organic flow battery having a positive electrode electrolyte containing organic compounds with extended conjugation and/or cyclic side chains is provided. The flow battery includes a positive electrode and a positive electrode electrolyte including first solvent and a first redox couple. The positive electrode electrolyte flows over and contacting the positive electrode. The first redox couple includes a first organic compound and a reduction product of the first organic compound. The flow battery also includes a negative electrode and a negative electrode electrolyte including a second solvent and a second redox couple. The negative electrode electrolyte flows g over and contacts the positive electrode. Typically, an ion exchange membrane is interposed between the positive electrode and the negative electrode Characteristically, the first organic compound resists crossover through the ion exchange membrane.

Crossover resistant materials for aqueous organic redox flow batteries

A flow battery includes a positive electrode, a positive electrode electrolyte, a negative electrode, a negative electrode electrolyte, and a polymer electrolyte membrane interposed between the positive electrode and the negative electrode. The positive electrode electrolyte includes water and a first redox couple. The first redox couple includes a first organic compound which includes a first moiety in conjugation with a second moiety. The first organic compound is reduced during discharge while during charging the reduction product of the first organic compound is oxidized to the first organic compound. The negative electrode electrolyte includes water and a second redox couple. The second couple includes a second organic compound including a first moiety in conjugation with a second moiety. The reduction product of the second organic compound is oxidized to the second organic compound during discharge.

Inexpensive metal-free organic redox flow battery (ORBAT) for grid-scale storage

A quinone derivative with a high redox potential that does not undergo Michael addition or proto-desulfonation. This molecule addresses the key issues faced with the positive side material of an aqueous all-organic flow battery. This new molecule is 2,5-dihydroxy-4,6-dimethylbenzene-1,3-disulfonic acid (or the disulfonate salt thereof). This quinone derivative offers good solubility, electrochemical reversibility, and robustness to charge/discharge cycling. Quinones with reduced crossover are also provided.

Stable positive side material for all-organic flow battery

A lithium ion mixed conduction membrane includes an optional polymeric binder and a partially lithiated ion conductive material having lithium ion conductivity and electrical conductivity dispersed within the polymeric binder that is capable of improving the performance and cycle life of lithium-sulfur rechargeable batteries and other batteries exhibiting the polysulfide shuttle. One or more lithium ion conduction membranes are placed between the positive and negative electrodes, or adjacent to the negative electrode of a battery and in particular, of a lithium sulfur battery.

Lithium-ion mixed conductor membrane improves the performance of lithium-sulfur battery and other energy storage devices

Quinones and related compounds for use in flow batteries are provided. Many of these compounds are found to mitigate the effects of crossover in a flow battery. Other structure for improving battery performance is provided.

Materials for high-performance aqueous organic redox flow batteries

A compound having formula I that is useful for C&#x2550;O reduction is provided: wherein:M is a transition metal;X, Xare each independently a counterion; andR, R, Rare each independently H, Calkyl, Caryl, or Cheteroaryl.

Nickel-based catalysts for C=O reduction and oxygen evolution

An iron electrode and a method of manufacturing an iron electrode for use in an iron-based rechargeable battery are disclosed. In one embodiment, the iron electrode includes carbonyl iron powder and one of a metal sulfide additive or metal oxide additive selected from the group of metals consisting of bismuth, lead, mercury, indium, gallium, and tin for suppressing hydrogen evolution at the iron electrode during charging of the iron-based rechargeable battery. An iron-air rechargeable battery including an iron electrode comprising carbonyl iron is also disclosed, as is an iron-air battery wherein at least one of the iron electrode and the electrolyte includes an organosulfur additive.

High efficiency iron electrode and additives for use in rechargeable iron-based batteries

A series of binary and ternary Pt-alloys, that promote the important reactions for catalysis at an alloy surface; oxygen reduction, hydrogen oxidation, and hydrogen and oxygen evolution. The first two of these reactions are essential when applying the alloy for use in a PEMFC.

Nanostructured platinum alloys for use as catalyst materials

Embodiments include an iron-air rechargeable battery having a composite electrode including an iron electrode and a hydrogen electrode integrated therewith. An air electrode is spaced from the iron electrode and an electrolyte is provided in contact with the air electrode and the iron electrodes. Various additives and catalysts are disclosed with respect to the iron electrode, air electrode, and electrolyte for increasing battery efficiency and cycle life.

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Arcadia, CA, United States of America

Sri R Narayan