Energizer Brands, LLC

Other

Sandia Corporation

National Technology & Engineering Solutions of Sandia, LLC

Steven J Limmer

William Graham Yelton

Weiwei Huang

Robert E Ray

Zhufang Liu

Robert P Johnson

Timothy J Boyle

Guanghong Zheng

Kent Bryant Pfeifer

Alex Robinson

Scott C Lindblom

Ryan Falcone Hess

Arthur N Rumpf

Grzegorz Cieslewski

George Louis Schimek

Robert M Estanek

Andrew Gibson

Scott Donne

Yaser Beyad

Noel Felix Savignac

Leo S Gomez

Electrochemical cells are provided, wherein a metal ion is adsorbed to a manganese dioxide- or carbon-containing electrode due to the addition of a metal additive to the cell's electrolyte and/or cathode. Methods for preparing such cells are also provided. In particular embodiments, the electrochemical cells are alkaline electrochemical cells, and the electrode contains manganese dioxide.

Additives for improving battery performance via cation adsorption

Alkaline electrochemical cells are provided, wherein dissolved zinc oxide or zinc hydroxide is included at least in the free electrolyte solution, and/or solid zinc oxide or zinc hydroxide is included in the anode, so as to slow formation of a zinc oxide passivation layer on a zinc electrode. Methods for preparing such cells are also provided.

Alkaline electrochemical cells comprising increased zinc oxide levels

Substituted &#x3bb;-MnOcompounds are provided, where a portion of the Mn is replaced by at least one alternative element. Electrochemical cells incorporating substituted &#x3bb;-MnOinto the cathode, as well as methods of preparing the substituted &#x3bb;-MnO, are also provided.

Substituted lambda manganese dioxides in an alkaline electrochemical cell

The present invention relates to ruggedized downhole tools and sensors, as well as uses thereof. In particular, these tools can operate under extreme conditions and, therefore, allow for real-time measurements in geothermal reservoirs or other potentially harsh environments. One exemplary sensor includes a ruggedized ion selective electrode (ISE) for detecting tracer concentrations in real-time. In one embodiment, the ISE includes a solid, non-conductive potting material and an ion selective material, which are disposed in a temperature-resistant electrode body. Other electrode configurations, tools, and methods are also described.

Ruggedized downhole tool for real-time measurements and uses thereof

A novel measurement technique is employed using surface acoustic wave (SAW) devices, passive RF, and radiation-sensitive films to provide a wireless passive radiation sensor that requires no batteries, outside wiring, or regular maintenance. The sensor is small (&#x3c;1 cm), physically robust, and will operate unattended for decades. In addition, the sensor can be insensitive to measurement position and read distance due to a novel self-referencing technique eliminating the need to measure absolute responses that are dependent on RF transmitter location and power.

Wireless passive radiation sensor

This invention is a nuclear radiation-warning detector that measures impedance of silver-silver halide on an interdigitated electrode to detect light or radiation comprised of alpha particles, beta particles, gamma rays, X rays, and/or neutrons. The detector is comprised of an interdigitated electrode covered by a layer of silver halide. After exposure to alpha particles, beta particles, X rays, gamma rays, neutron radiation, or light, the silver halide is reduced to silver in the presence of a reducing solution. The change from the high electrical resistance (impedance) of silver halide to the low resistance of silver provides the radiation warning that detected radiation levels exceed a predetermined radiation dose threshold.

Nuclear radiation-warning detector that measures impedance

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Cleveland, OH, United States of America

Steven J Limmer