UChicago Argonne, LLC

Wei Weng

Khalil Amine

Zhengcheng Zhang

Lu Zhang

Ali Abouimrane

Vilas G Pol

Shengwen Yuan

Nasim Azimi

A lithium-sulfur electrochemical cell includes a cathode including elemental sulfur; an anode including elemental lithium; and an electrolyte including a salt and a non-polar fluorinated ether solvent. Alternatively, a lithium-sulfur electrochemical cell may include an anode; an electrolyte; and a cathode including a polytetrafluoroethylene-coated carbon paper and sulfur.

Lithium-sulfur batteries

An ionic liquid that is a salt has a Formula: Such ionic liquids may be used in electrolytes and in electrochemical cells.

Functionalized ionic liquid electrolytes for lithium ion batteries

A process of preparing an E-carbon nanocomposite includes contacting a porous carbon substrate with an E-containing material to form a mixture; and sonicating the mixture to form the E-carbon nanocomposite; where E is S, Se, SeS, or Te, x is greater than 0; and y is greater than 0.

Ultrasound assisted in-situ formation of carbon/sulfur cathodes

A rechargeable battery includes a compound having at least two active sites, Rand R; wherein the at least two active sites are interconnected by one or more conjugated moieties; each active site is coordinated to one or more metal ions Mor each active site is configured to coordinate to one or more metal ions; and 'a' is 1, 2, or 3.

Organic active materials for batteries

An electrolyte may include compounds of general Formula IVA or IVB. where, R, R, R, and Rare each independently selected from H, F, Cl, Br, CN, NO, alkyl, haloalkyl, and alkoxy groups; X and Y are each independently O, S, N, or P; and Z' is a linkage between X and Y, and at least one of R, R, R, and Ris other than H.

Redox shuttles for lithium ion batteries

A composite material includes a porous organic polymer and an electrochemically active material, wherein the porous organic polymer contains a plurality of pores having a diameter of from about 0.1 nm to about 100 nm, and the electrochemically active material is disposed within the pores.

Sulfur cathode hosted in porous organic polymeric matrices

An electrolyte includes an alkali metal salt; an aprotic solvent; and a redox shuttle additive including an aromatic compound having at least one aromatic ring fused with at least one non-aromatic ring, the aromatic ring having two or more oxygen or phosphorus-containing substituents.

Redox shuttles having an aromatic ring fused to a 1,1,4,4-tetrasubstituted cyclohexane ring

Compounds may have general Formula IVA or IVB. where, R, R, R, and Rare each independently selected from H, F, Cl, Br, CN, NO, alkyl, haloalkyl, and alkoxy groups; X and Y are each independently O, S, N, or P; and Z' is a linkage between X and Y. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.

Growing community of inventors

Woodridge, IL, United States of America

Wei Weng