Prieto Battery, Inc.

Orica International Pte Ltd

Colorado State University Research Foundation

Johnson, Derek C.

Prieto, Amy L.

Hoffert, Wesley A.

Rawls, Matthew

Matthew T Rawls

Derek C Johnson

Amy L Prieto

David Johnson

Richard John Goodridge

Rodney Wayne Appleby

C Michael Elliott

James M Mosby

Francisco Sanchez

Chad D Chaffin

Dale S Preece

Wesley A Hoffert

Ming Chung Lee

Ayman Tawadrous

Daniel J Bates

An explosive device configured for outputting a quasi-planar shock wave includes: a body structure having a proximal end and an opposing distal end, and within which (a) an initiation device chamber; (b) a donor charge having a geometric shape correlated with first cone having an internal void exhibiting a geometric shape correlated with a second cone, wherein a first base of the first cone and a second base of the second cone reside in a common plane and have a common center point; (c) a non-explosive wave shaper filling the void; and (d) an acceptor charge are sequentially disposed adjacent to each other in a direction toward the distal end. Perpendicular to the central axis, a maximum lateral span of each of the wave shaper, the donor charge, and the acceptor charge coincide. The acceptor explosive charge mass does not laterally extend to a set of body structure outer walls.

Explosive device configured for producing a quasi-planar shock wave

In an embodiment, a photoinitiation apparatus includes: a set of illumination sources or elements configured for outputting optical energy; a body structure having a proximal body structure portion confining a proximal volume of explosive medium, an intermediate body structure portion confining an intermediate volume of explosive medium, and a distal body structure portion confining a distal volume of explosive medium, wherein the proximal volume of explosive medium is optically coupled to portions of the first volume of explosive medium, at least one of the proximal volume of explosive medium and the distal volume of explosive medium is a tertiary explosive medium, and (a) the body structure does not carry a primary explosive composition and does not carry a secondary explosive composition, and/or (b) each of the proximal, intermediate, and distal volumes of explosive media has an initiation sensitivity that is less than cyclotrimethylenetrinitramine (RDX) based explosive compositions.

Systems, apparatuses, devices, and methods for initiating or detonating tertiary explosive media by way of photonic energy

A lithium-ion battery including an electrodeposited anode material having a micron-scale, three-dimensional porous foam structure separated from interpenetrating cathode material that fills the void space of the porous foam structure by a thin solid-state electrolyte which has been reductively polymerized onto the anode material in a uniform and pinhole free manner, which will significantly reduce the distance which the Li-ions are required to traverse upon the charge/discharge of the battery cell over other types of Li-ion cell designs, and a procedure for fabricating the battery are described. The interpenetrating three-dimensional structure of the cell will also provide larger energy densities than conventional solid-state Li-ion cells based on thin-film technologies. The electrodeposited anode may include an intermetallic composition effective for reversibly intercalating Li-ions.

Lithium-ion battery having interpenetrating electrodes

Electrochemical methods for probing solid polymer electrolyte surface coatings on electrically conducting, active, three-dimensional electrode materials for use in lithium-ion batteries, to quantitatively determine the conformity, uniformity, and the presence of pinholes, and/or other defects in coatings, without requiring the detachment of the coating from the electrode or otherwise inducing damage to the coating, are described. Coated electrodes are submersed in an electrolyte solution containing a redox-active probe species which does not induce electrochemical damage to either the working electrode or the solid polymer electrolyte surface coating. For coated CuSb working electrodes, molecules including a water-soluble redox active viologen moiety have been found to be effective. The current as a function of the applied potential for an uncoated working electrode is used as a baseline for testing solid polymer surface coatings on working electrodes, and the difference in the observed current between the electrodes for a given potential is a quantitative indicator of the ability of the probe species to access the surface of the working electrode through the solid polymer electrolyte coating.

Detection of defects in solid-polymer coatings using reduction-oxidation probes

Methods are described for forming insulating hybrid organic-inorganic solid electrolytes on conducting electrodes that are active materials in Li-ion batteries by electrochemical deposition, and for forming second conducting electrodes on the solid electrolytes using aqueous slurries, whereby Li-ion battery cells having solid electrolytes are generated. X-ray photoelectron spectroscopy is utilized for determining that the solid electrolytes are defect and pinhole free.

Lithium-ion battery having organic-inorganic hybrid solid electrolyte

Methods for reductively polymerizing vinylic based monomers from a solution thereof onto the surface of an electrode material, resulting in thin, electrically insulating solid-polymer electrolyte coatings strongly bound to the surface of the electrode material, are described. The strong bond permits a second electrode to be coated directly onto the solid-polymer electrolyte, thereby incorporating the required components for a Li-ion battery cell. At least one initiator species, which is readily reduced by accepting an electron from the electrode material, is included in electropolymerization deposition solution for permitting the polymerization of vinylic species that would otherwise not electrochemically polymerize without damage to either the electrode material or to the solvents employed.

Electropolymerization of a coating onto an electrode material

Growing community of inventors

Denver, CO, United States of America

Matthew T Rawls