University System of Maryland

US Government As Represented by the Secretary of the Army

U.S. Army Research Laboratory

Chunsheng Wang

Kang Xu

Liumin Suo

Yunho Hwang

K Reinhard Radermacher

Oleg A Borodin

Arthur Von Wald Cresce

Ye Tao

Chongyin Yang

Zhenyuan Mei

Joseph Patrick Baker

Jijian Xu

Xiulin Fan

Jie Yue

Fei Wang

The present invention is directed to aqueous solid state electrolytes that comprises an oxidative additive to stabilize the interface between the cathode and aqueous electrolyte. The present invention is also directed to methods of making the solid state electrolyte materials and methods of using the solid state electrolyte materials in batteries and other electrochemical technologies.

Cathode stabilization method using electrochemical oxidative additives in aqueous alkali-ion batteries

The disclosure provides rechargeable lithium ion batteries comprising at least one lithium salt-graphite composite electrode. In particular, the disclosure provides a rechargeable 'water-in-bisalt' lithium ion battery with a high potential where at least a portion of the lithium salt is phase separated from the aqueous electrolyte, and where the anionic-redox reaction occurs within the graphitic lattice.

Rechargeable Li-ion battery with halogen intercalated graphite electrode

The present invention is directed to aqueous and hybrid aqueous electrolytes that comprise a lithium salt. The present invention is also directed to methods of making the electrolytes and methods of using the electrolytes in batteries and other electrochemical technologies.

Aqueous and hybrid electrolytes with wide electrochemical stability windows

The present invention is directed to a hybrid high voltage aqueous electrolyte battery that combines Ni/MgNiHand Mg-ion rechargeable battery chemistries. The hybrid aqueous electrolyte battery can be used for plug-in hybrid electrical vehicles and electric vehicles.

Multiple-electron aqueous battery

The present invention is directed to solid-state composite cathodes that comprise NaS or LiS, NaPS, or Li3PS4, and mesoporous carbon. The present invention is also directed to methods of making the solid-state composite cathodes and methods of using the solid-state composite cathodes in batteries and other electrochemical technologies.

All solid-state sodium-sulfur or lithium-sulfur battery prepared using cast-annealing method

The present invention is directed to aqueous solid state electrolytes that comprise a fluoride additive to stabilize the interface between the anode and aqueous electrolyte. The present invention is also directed to methods of making the solid state electrolyte materials and methods of using the solid state electrolyte materials in batteries and other electrochemical technologies.

High voltage aqueous electrolyte system for lithium metal or graphite anode

An electrochemical module (EM) transfers a fluid across a membrane thereof using oxygen as a carrier gas. The EM has an anion exchange membrane (AEM) disposed between a first and second electrodes, each of which includes a catalyst. At an inlet side, the catalyst facilitates reaction of the fluid with carrier gas, such that an anion is formed. The anion is transported across the AEM in the presence of an electric field applied to the electrodes. At an outlet side, the catalyst facilitates dissociation of the anion back to the fluid and carrier gas. In some embodiments, the fluid comprises carbon dioxide, and the transporting by the EM is part of a heating/cooling cycle or a power generation cycle, or is used to capture carbon dioxide for storage or regeneration of stale air. In some embodiments, the fluid comprises water vapor, and the transporting by the EM dehumidifies air.

Systems, devices, and methods employing electrochemical processing with oxygen as carrier gas

Hydrofluoroolefin (HFO) fluid can be transported through an electrochemical device, which has a proton exchange membrane (PEM) disposed between a pair of gas-permeable electrodes that include respective catalysts. At an inlet side, the catalyst facilitates reaction of HFO with hydrogen carrier gas. The resulting cation is transported across PEM in the presence of an electric field applied to the electrodes. At an outlet side, the catalyst of the opposing electrode facilitates dissociation of the cation back into HFO and hydrogen. In some embodiments, the transported HFO has a higher pressure than that before the electrochemical device. In some embodiments, the electrochemical device can be operated in reverse to expand HFO fluid and/or to recapture power. The electrochemical device can thus be used as a compressor or expander for vapor-phase HFO or as a pump or expander for liquid-phase HFO, for example, in power generation or heating/cooling cycles.

Growing community of inventors

Silver Spring, MD, United States of America

Chunsheng Wang