Duracell U.S. Operations, Inc.

The Gillette Company

Fan Zhang

Kirakodu S Nanjundaswamy

Paul Albert Christian

Jennifer Anne Nelson

Yichun Wang

Nikolay Krastev Iltchev

Rimma A Sirotina

William L Bowden

George M Cintra

Dana Alexa Totir

Todd E Bofinger

Michael Pozin

Nikolai Nikolaevich Issaev

Alexander Kaplan

Cahit Eylem

Junan Kao

Ignacio Chi

David Lloyd Anglin

Thomas C Richards

Francis Wang

Xiandong Wang

James Joseph Cervera

Gary A Miller

Jiayu Simon Xue

Paul Wildgust

Thomas Baccaro

Chaolan Hu

Thomas Campbell Richards

Provided are methods of preparing an electrochemically active cathode material including the steps of combining an alkali metal-containing nickel oxide having a formula ANiO, wherein A comprises an alkali metal and 0<a≤0.2, with a fluid composition including an oxidant comprising a peroxydisulfate salt, a monopersulfate salt, or a combination thereof to form a mixture, heating the mixture to a temperature of 50° C. or greater; and maintaining the mixture at the temperature for at least a period of time sufficient to form an alkali metal-deficient nickel oxide electrochemically active cathode material having a general formula AHNiO·nHO, wherein A comprises an alkali metal; 0.08≤x<0.2; 0≤y<0.3; 0.02≤a≤0.2; and 0<n<2.

Oxidative delithiation of alkali nickel oxide

A primary battery includes a cathode having a non-stoichiometric metal oxide including transition metals Ni, Mn, Co, or a combination of metal atoms, an alkali metal, and hydrogen; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.

Primary alkaline battery

A secondary electrochemical cell comprises an anode, a cathode including electrochemically active cathode material, a separator between the anode and the cathode, and an electrolyte. The electrolyte comprises at least one salt dissolved in at least one organic solvent. The separator in combination with the electrolyte has an area-specific resistance of less than about 2 ohm-cm.

Secondary electrochemical cells with separator and electrolyte combination

A primary battery includes a cathode having an alkali-deficient nickel oxide including metals such as Ca, Mg, Al, Co, Y, Mn, and/or non-metals such as B, Si, Ge, or a combination of metal and/or non-metal atoms; a combination of metal atoms; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.

Metal-doped nickel oxide active materials

Methods of making high-energy cathode active materials for primary alkaline batteries are described. The primary batteries include a cathode having an alkali-deficient nickel(IV)-containing oxide including one or more metals such as Co, Mg, Al, Ca, Y, Mn, and/or non-metals such as B, Si, Ge or a combination of metal and/or non-metal atoms as dopants partially substituted for Ni and/or Li in the crystal lattice; an anode; a separator between the cathode and the anode; and an alkaline electrolyte solution.

Methods of making metal-doped nickel oxide active materials

A primary alkaline battery includes a cathode having an alkali-deficient nickel (IV)-containing oxide including metals such as Ni, Co, Mg, Al, Ca, Y, Mn, and/or non-metals such as B, Si, Ge or a combination of metal and/or non-metal ions as stabilizing dopants; a combination of metal ions as dopants; an anode; a separator between the cathode and the anode; and an alkaline electrolyte. The battery can be pre-discharged within one hour after assembly to decrease the open circuit voltage.

Batteries are disclosed. In some embodiments, a battery includes a cathode having a composition that includes a manganese oxide. The composition has an X-ray diffraction pattern with a first peak at about 18 degrees, a second peak at about 22 degrees, and a third peak at about 32 degrees.

Battery cathodes

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Newtown, CT, United States of America

Fan Zhang