US Government As Represented by the Secretary of the Army

The Gillette Company

USA As Represented by Secretary of the Navy

Jan L Allen

T Richard Jow

Jeffrey B Wolfenstine

Samuel A Delp, Iii

Joshua L Allen

Yan-Fei Shen

Tsi-Neng Ying

Jeffery Wolfenstine

Kirsten Agee

Samuel A Delp Iii

A composition of matter and method includes LiM(II)M(III)M(IV)M(V)M(V)O. M(II) includes any of Mg, Co, Ni, Cu, and Zn. M(III) includes any of Al, Cr, Fe, Ga, and In. M(IV) includes any of Ti, Mn, and Ge. M(V) includes any of Nb, Ta, Sb, and Bi. Additionally, 0≤x≤0.25, 0≤y≤0.75, 0≤z≤0.5, and (x+z)>0.

Electrolyte and electrode materials for rechargeable lithium batteries

A positive electrode material having a nominal stoichiometry LiCoSiFeMM'(PO)where M is a trivalent cation selected from at least one of Cr, Ti, Al, Mn, Ni, V, Sc, La and/or Ga, M&#x2032; is a divalent cation selected from at least one of Mn, Ni, Zn, Sr, Cu, Ca and/or Mg, y is within a range of 0&#x3c;y&#x2264;0.10 and x is within a range of 0&#x2264;x&#x2264;0.2. The use of double compositional modification to LiCoPOincreases the discharge capacity from &#x2dc;100 mAh/g to about 130 mAh/g while retaining the discharge capacity retention of the singly Fe-substituted LiCoPO. Additional compositional modification to include Si increases the cycle life and greatly improved the coulombic efficiency to between 97-100% at a C/3 cycle rate.

High voltage lithium ion positive electrode material

A positive electrode material having a nominal stoichiometry LiCoSiFeMM'(PO)where M is a trivalent cation selected from at least one of Cr, Ti, Al, Mn, Ni, V, Sc, La and/or Ga, M&#x2032; is a divalent cation selected from at least one of Mn, Ni, Zn, Sr, Cu, Ca and/or Mg, y is within a range of 0&#x3c;y&#x2266;0.10 and x is within a range of 0&#x2266;x&#x2266;0.2. The use of double compositional modification to LiCoPOincreases the discharge capacity from &#x2dc;100 mAh/g to about 130 mAh/g while retaining the discharge capacity retention of the singly Fe-substituted LiCoPO. Additional compositional modification to include Si increases the cycle life and greatly improved the coulombic efficiency to between 97-100% at a C/3 cycle rate.

A lithiated metal phosphate material substituted by divalent atoms at the M2 site and trivalent atoms, a portion of which are present at both the M2 and the M1 sites. The substituted material has the general formula of LiMTDPO, wherein M is selected from the group consisting of Mn, Co, Niand combinations thereof; T is selected from the group consisting of Fe, Aland Gaand a portion of said T resides at the M2 sites, said portion being greater than 0 and no more than 99 percent of the total T atoms; D is selected from the group consisting of Fe, Mn, Co, Ni, Mg, Zn, Caand combinations thereof; d has a value greater than 0 and no more than 0.3; and t has a value in the range of 0 to 0.3. Also disclosed are electrodes which incorporate the substituted metal phosphate material and are disposed in electrochemical cells as well as batteries, including rechargeable lithium ion batteries. Finally, there is disclosed a method of increasing the life cycle of an electrode by forming the electrode by mixing and dissolving LiHPO, Co(OH)and FeCO.2HO in HNO, evaporating the water from this solution to form a solid powder mixture, heating said mixture to around 600&#xb0; C. under Nfor approximately 12 hours, cooling, ball milling for about 30 minutes the mixture with 0.01-10 wt. % acetylene black; heating the mixture again to around 600&#xb0; C. under Nfor about an hour and then coating the mixture onto an Al foil substrate to produce a composite electrode.

High voltage lithium ion positive electrode material with improved cycle life

A lithiated metal phosphate material is doped by a portion of the lithium atoms which are present at the M2 sites of the material. The doped material has the general formula: LiMDPO. In the formula, M is a divalent ion of one or more of Fe, Mn, Co and Ni. D is a divalent metal ion which is one or more of Mg, Ca, Zn, and Ti. It is present in an amount represented by the subscript d which has a value ranging from 0 to 0.1. The portion of the lithium which is present at the M2 octahedral sites of the material is represented by the subscript x and is greater than 0 and no more than 0.07. Also disclosed are electrodes which incorporate the material as well as batteries, including lithium ion batteries, which include cathodes fabricated from the doped, lithiated metal phosphate materials.

Electrode materials for electrochemical cells

Disclosed are enhanced efficacy antiperspirant compositions containing a strontium salt and/or a calcium salt. In particular, there is disclosed an antiperspirant composition comprising a dermatologically acceptable carrier vehicle, about 8% to about 22% (USP) of an aluminum-zirconium chlorohydrate-gly antiperspirant salt, wherein the antiperspirant salt has an HPLC peak 5 area of at least 33%, and about 0.5% to about 15%, preferably about 1% to about 6%, by weight, of a water soluble salt selected from the group consisting of a water soluble strontium salt, a water soluble calcium salt and a mixture thereof. It has been found that the inclusion of a strontium salt and/or a calcium salt boosts the efficacy of a high peak 5 antiperspirant salt. As a preferred feature, the antiperspirant salt and the water soluble salt are dissolved in at least a portion of the carrier vehicle.

Enhanced efficacy antiperspirant compositions containing strontium or calcium

A packaged towelette is provided including a flexible sheet material sealed around a pre-moistened towelette, the flexible sheet material including a fin constructed to allow a user to grasp the fin and open the package without touching the towelette.

Growing community of inventors

Silver Spring, MD, United States of America

Jan L Allen