Abstract: An underfill composition for encapsulating a bond line and a method of using the underfill composition are described. Advantageously, the disclosed underfill composition in an uncured state has a fluidity value of less than about ten minutes over about a two centimeter distance at a temperature of about 90 degrees C. and at a bond line thickness of about 50 microns or less and still have a bulk thermal conductivity that is greater than about 0.8 W/mK in the cured state.

Abstract: An underfill composition for encapsulating a bond line and a method of using the underfill composition are described. Advantageously, the disclosed underfill composition in an uncured state has a fluidity value of less than about ten minutes over about a two centimeter distance at a temperature of about 90 degrees C. and at a bond line thickness of about 50 microns or less and still have a bulk thermal conductivity that is greater than about 0.8 W/mK in the cured state.

Abstract: An electrode material comprising a particle containing at least one member selected from the particles containing silicon, tin, silicon compound and tin compound, and fibrous carbon. The particle includes: (1) a particle comprising at least one member of a silicon particle, tin particle, particle containing a lithium-ion-intercalatable/releasable silicon compound and particle containing a lithium-ion-intercalatable/releasable tin compound; or (2) a particle comprising a silicon and/or silicon compound-containing carbonaceous material deposited onto at least a portion of the surfaces of a carbon particle having a graphite structure. The lithium secondary battery using the electrode material as a negative electrode has high discharging capacity and is excellent in cycle characteristics and characteristics under a load of large current.

Abstract: An electrode material comprising a particle containing at least one member selected from the particles containing silicon, tin, silicon compound and tin compound, and fibrous carbon. The particle includes: (1) a particle comprising at least one member of a silicon particle, tin particle, particle containing a lithium-ion-intercalatable/releasable silicon compound and particle containing a lithium-ion-intercalatable/releasable tin compound; or (2) a particle comprising a silicon and/or silicon compound-containing carbonaceous material deposited onto at least a portion of the surfaces of a carbon particle having a graphite structure. The lithium secondary battery using the electrode material as a negative electrode has high discharging capacity and is excellent in cycle characteristics and characteristics under a load of large current.

Abstract: An electrode material comprising a particle containing at least one member selected from the particles containing silicon, tin, silicon compound and tin compound, and fibrous carbon. The particle includes: (1) a particle comprising at least one member of a silicon particle, tin particle, particle containing a lithium-ion-intercalatable/releasable silicon compound and particle containing a lithium-ion-intercalatable/releasable tin compound; or (2) a particle comprising a silicon and/or silicon compound-containing carbonaceous material deposited onto at least a portion of the surfaces of a carbon particle having a graphite structure. The lithium secondary battery using the electrode material as a negative electrode has high discharging capacity and is excellent in cycle characteristics and characteristics under a load of large current.

Abstract: An electrode material comprising a particle containing at least one member selected from the particles containing silicon, tin, silicon compound and tin compound, and fibrous carbon. The particle includes: (1) a particle comprising at least one member of a silicon particle, tin particle, particle containing a lithium-ion-intercalatable/releasable silicon compound and particle containing a lithium-ion-intercalatable/releasable tin compound; or (2) a particle comprising a silicon and/or silicon compound-containing carbonaceous material deposited onto at least a portion of the surfaces of a carbon particle having a graphite structure. The lithium secondary battery using the electrode material as a negative electrode has high discharging capacity and is excellent in cycle characteristics and characteristics under a load of large current.

Abstract: Graphite fine powder exhibiting excellent electrical conductivity and is suitable for use in, for example, an anti-static application and an electromagnetic wave shielding application, a method for preparing the graphite fine powder, an electrically conductive resin composition using the fine graphite powder having an excellent conductivity and moldability, and a resin molded product using the graphite fine powder having excellent electrical conductivity and strength are provided. The graphite fine powder includes a substance containing a particular element on a part or whole of its surface layer, and the electrically conductive resin composition and the resin molded product are obtained by using the graphite fine powder.

Abstract: The present invention relates to (1) carbon powder having a primary particle size of 100 nm or less and an X-ray crystallite plane spacing C0 of less than 0.680 nm, preferably of 0.6730 nm or less, which shows a volume resistivity of 0.1 &OHgr;·cm or less in the pressurized state under a pressure of 2 MPa, and containing boron in a range of 0.1 to 5% by mass, (2) a method for producing the carbon powder, (3) an electrically conducting carbon composite powder wherein above-described carbon powder is mixed with fibrous carbon, particularly vapor grown carbon fiber, (4) a catalyst for solid polymer electrode fuel battery using above-described carbon powder or electrically conducting carbon composite powder, (5) a polymer electrolyte fuel battery cell using the catalyst, and (6) a polymer electrolyte fuel battery using the catalyst.

Abstract: The present invention relates to (1) carbon powder having a primary particle size of 100 nm or less and an X-ray crystallite plane spacing C0 of less than 0.680 nm, preferably of 0.6730 nm or less, which shows a volume resistivity of 0.1 &OHgr;·cm or less in the pressurized state under a pressure of 2 MPa, and containing boron in a range of 0.1 to 5% by mass, (2) a method for producing the carbon powder, (3) an electrically conducting carbon composite powder wherein Age above-described carbon powder is mixed with fibrous carbon, particularly vapor grown carbon fiber, (4) a catalyst for solid polymer electrode fuel battery using above-described carbon powder or electrically conducting carbon composite powder, (5) a polymer electrolyte fuel battery cell using the catalyst, and (6) a polymer electrolyte fuel battery using the catalyst.