A method of forming a polyanion active material that includes providing a carbon source, providing a mobile ion source, providing an active metal material, providing a network material, providing a flux material, and mixing the various materials. In one aspect, the mixing step may include grinding or pulverizing materials to a uniform fine mixture. In one aspect, a ball mill may be utilized to mix the components. Following the mixing of the materials, the mixture is heated to a predetermined temperature in a non-oxidizing atmosphere to form a reaction product. In one aspect, the mixture is heated to a temperature above a melting temperature of the flux material. In this manner, the flux material provides a medium in which the various reactants may react to form the desired reaction product. Following the heating of the mixture the reaction product is washed, forming a carbon coated polyanion active material. Also disclosed is a polyanion active material that includes the in situ reaction product of a carbon source, mobile ion source, active metal material, network material, and a flux material wherein the polyanion active material includes a carbon coating formed thereon.

A method of forming a polyanion active material that includes providing a carbon source, providing a mobile ion source, providing an active metal material, providing a network material, providing a flux material, and mixing the various materials. In one aspect, the mixing step may include grinding or pulverizing materials to a uniform fine mixture. In one aspect, a ball mill may be utilized to mix the components. Following the mixing of the materials, the mixture is heated to a predetermined temperature in a non-oxidizing atmosphere to form a reaction product. In one aspect, the mixture is heated to a temperature above a melting temperature of the flux material. In this manner, the flux material provides a medium in which the various reactants may react to form the desired reaction product. Following the heating of the mixture the reaction product is washed, forming a carbon coated polyanion active material. Also disclosed is a polyanion active material that includes the in situ reaction product of a carbon source, mobile ion source, active metal material, network material, and a flux material wherein the polyanion active material includes a carbon coating formed thereon.

Provided are a method for manufacturing polycarbonate polyol and a composition including the polycarbonate polyol. The composition includes polycarbonate polyol; a plurality of nanoscale silicate platelets having 10,000 to 20,000 (units/per platelet) of metal cations on surfaces thereof, wherein the polycarbonate polyol has a viscosity of from 265 to 1520 cps.

Provided are a method for manufacturing polycarbonate polyol and a composition including the polycarbonate polyol. The composition includes polycarbonate polyol; a plurality of nanoscale silicate platelets having 10,000 to 20,000 (units/per platelet) of metal cations on surfaces thereof, wherein the polycarbonate polyol has a viscosity of from 265 to 1520 cps.

A microcrystalline talc particulate having a BET specific surface area no less than about 35 m.sup.2/g and one or both of: (a) a d.sub.50, by Sedigraph, no greater than about 2.0 5 ?m; and (b) a d.sub.50, by laser, no greater than about 5.0 ?m.

A microcrystalline talc particulate having a BET specific surface area no less than about 35 m.sup.2/g and one or both of: (a) a d.sub.50, by Sedigraph, no greater than about 2.0 5 ?m; and (b) a d.sub.50, by laser, no greater than about 5.0 ?m.

A negative electrode active material for a lithium secondary battery, which includes a silicon-based particle represented by M-SiO.sub.x, wherein M is Li, Mg, Ca, Al, or Ti, and 0?x<2, wherein the M-SiO.sub.x includes an amorphous phase at 20 wt % to 70 wt % based upon a total weight of the M-SiO.sub.x, thereby exhibiting excellent initial efficiency and lifespan characteristics, and a preparation method thereof.

A negative electrode active material for a lithium secondary battery, which includes a silicon-based particle represented by M-SiO.sub.x, wherein M is Li, Mg, Ca, Al, or Ti, and 0?x<2, wherein the M-SiO.sub.x includes an amorphous phase at 20 wt % to 70 wt % based upon a total weight of the M-SiO.sub.x, thereby exhibiting excellent initial efficiency and lifespan characteristics, and a preparation method thereof.

A talc particulate having a d.sub.50 ranging from about 7 m to about 13 m and a BET surface area equal to or less than about 23 m.sup.2/g, barrier compositions and polymeric compositions comprising said talc particulate, use of said talc particulate to decrease permeability of a composition, use of said talc particulate in an inner lining of a tire, methods of making said barrier compositions, polymeric compositions and tire inner linings.

A talc particulate having a d.sub.50 ranging from about 7 m to about 13 m and a BET surface area equal to or less than about 23 m.sup.2/g, barrier compositions and polymeric compositions comprising said talc particulate, use of said talc particulate to decrease permeability of a composition, use of said talc particulate in an inner lining of a tire, methods of making said barrier compositions, polymeric compositions and tire inner linings.