The Gillette Company

Joseph E Sunstrom

William L Bowden

Klaus Brandt

In Tae Bae

Rimma A Sirotina

James Joseph Cervera

Hyoun Sook Choe

Paul Albert Christian

David L Pappas

Andrew G Gilicinski

Jack Treger

Yichun Wang

Richard Edward Durkot

Javit A Drake

Cahit Eylem

Matthew Robert Stone

Stephen McDevitt

Robert C Reeder

Sharon Lu

Edward Curelop

Shelly Van Blarcom

Cathodes that include an active cathode material are described. The active cathode material can be coated.

Non-uniform conductive coating for cathode active material

Primary alkaline batteries containing pentavalent bismuth metal oxides are disclosed.

Primary alkaline battery containing bismuth metal oxide

A hydrogen generator includes a housing, a solid hydrogen source disposed within the housing, and an inlet configured to guide a fluid to contact the solid hydrogen source. The inlet can contact a wicking region. The wicking region can include a wicking material that has an affinity for the fluid. The wieking material can include a hydrophilic material. The housing can include a hydrogen gas outlet. The hydrogen generator can include an end cap at one end of the housing including the inlet and the hydrogen gas outlet. The hydrogen gas outlet can include a gas permeable membrane. The inlet can be fluidly connected to a fluid control system configured to control fluid flow rate to the solid hydrogen source. The generator can be portable.

Hydrogen generator

A textured dual layer metal air cathode is disclosed. The cathode includes a first layer that contains 30% to 70% organic polymer by weight, a second layer that contains 10% to 30% organic polymer by weight, and a catalyst. The first layer and the second layer contact each other at a textured interface.

Cathodes for metal air electrochemical cells

A battery, a primary alkaline battery, has a cathode including manganese dioxide, carbon, and a binder. The manganese dioxide is selected to have a high power coefficient to provide the battery capable of high current discharge.

Battery comprising manganese dioxide having a high power coefficient

A method of making a cathode includes decomposing a mixture comprising a metal naphthenate, e.g., cobalt naphthenate, and incorporating the decomposed mixture into the cathode. The cathode can be used, for example, in a metal-air battery and a fuel cell.

Method of making a cathode or battery from a metal napthenate

A method of making a cathode includes determining a sample of manganese dioxide having a power coefficient greater than about 3.4, and incorporating the sample of manganese dioxide into the cathode. The cathode can be incorporated into a battery, e.g., a cylindrical primary alkaline battery.

Method of selecting manganese dioxide for use in a cathode

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Merrimack, NH, United States of America

Joseph E Sunstrom