The Gillette Company

Klaus Brandt

William L Bowden

Paul Albert Christian

Zhiping Jiang

Rimma A Sirotina

Stuart Michael Davis

James Joseph Cervera

Joseph E Sunstrom

Hyoun Sook Choe

Andrew Anthony Szczepanowski

Ignacio Chi

Peter R Moses

Douglas J Woodnorth

Ou Mao

Nikolay Krastev Iltchev

Kenneth T Dodd

Brian McGovern

Charles Robert Parent

A method of making a cathode for a lithium primary battery includes lithiated manganese dioxide and a carbon fluoride. The cathode can provide high capacity and voltage with low gassing.

Method of making cathode

An electrochemical cell includes a hydrogen generator and a hydrogen fuel cell.

Electrochemical cells

A primary electrochemical cell includes a cathode including lambda-manganese dioxide (&#x3bb;-MnO), an anode including lithium or a lithium alloy, a separator interposed between the cathode and the anode, and a non-aqueous electrolyte contacting the anode and the cathode.

Primary lithium electrochemical cell

An alkaline battery includes a cathode including lambda-manganese dioxide, an anode including zinc, a separator between the cathode and the anode, and an alkaline electrolyte contacting the anode and the cathode.

Alkaline battery

Shaving razors and cartridges are provided that impart warmth to a user's skin during shaving. The razors and cartridges include a phase change material.

Shaving razors and razor cartridges

A primary electrochemical cell includes a cathode including lambda-manganese dioxide (&ggr;-MnO ), an anode including lithium or a lithium alloy, a separator interposed between the cathode and the anode, and a non-aqueous electrolyte contacting the anode and the cathode.

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 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

A lithiated manganese dioxide for use in primary lithium electrochemical cells. The lithiated manganese dioxide is prepared by stepwise treatment with a liquid source of lithium cations that can include an aqueous solution of a lithium base or a low melting point lithium salt resulting in formation of a lithiated manganese dioxide product. Lithium cations in the lithium base or molten lithium salt can be ion-exchanged with hydrogen ions in the manganese dioxide crystal lattice and additional lithium ions reductively inserted into the lattice during subsequent heat-treatment to form the lithiated manganese dioxide product Li,MnO,. The primary lithium cell utilizing the lithiated manganese dioxide product as active cathode material exhibits increased operating voltage and enhanced high rate, low temperature, and pulse discharge performance compared with untreated manganese dioxide.

Growing community of inventors

Wellesley, MA, United States of America

Klaus Brandt