Electrode and method of producing the same

An electrode comprising a porous carbon sheet comprising (a) carbon fibers and (b) a carbon matrix which comprises carbon particles and is integrally combined with said carbon fibers, having continuous through-holes, said porous carbon sheet being prepared by depositing a phenolic resin in the form of a dispersion on a phenolic resin sheet comprising phenolic resin fibers, and carbonizing said phenolic resin and said phenolic resin sheet in an oxygen-free atmosphere at temperatures in the range of 500.degree. C. to 3000.degree. C.

An electrode comprising a porous carbon sheet comprising (a) carbon fibers, (b) a carbon matrix which comprises carbon particles and is integrally combined with said carbon fibers, having through-holes, and (c) silica particles deposited on the surfaces of said carbon fibers and said carbon matrix, said porous carbon sheet being prepared by (i) depositing a phenolic resin in the form of a dispersion on a phenolic resin sheet comprising phenolic resin fibers, (ii) carbonizing said phenolic resin and said phenolic resin sheet in an oxygen-free atmosphere at temperature in the range of 500.degree. C. to 3000.degree. C., and (iii) depositing said silica particles on the surfaces of said carbon fibers and said carbon matrix.

A method of producing an electrode comprising a porous carbon sheet comprising (a) carbon fibers and (b) a carbon matrix which comprises carbon particles and is integrally combined with said carbon fibers, having continuous through-holes, comprising the steps of (i) depositing a phenolic resin in the form of a dispersion on a phenolic resin sheet comprising phenolic resin fibers, and (ii) carbonizing said phenolic resin and said phenolic resin sheet in an oxygen-free atmosphere at temperatures in the range of 500.degree. C. to 3000.degree. C.

A method of producing an electrode comprising a porous carbon sheet comprising (a) carbon fibers, (b) a carbon matrix which comprises carbon particles and is integrally combined with said carbon fibers, having through-holes, and (c) silica particles deposited on the surfaces of said carbon fibers and said carbon matrix, comprising the steps of (i) depositing a phenolic resin in the form of a dispersion on a phenolic resin sheet comprising phenolic resin fibers, (ii) carbonizing said phenolic resin and said phenolic resin sheet in an oxygen-free atmosphere at temperatures in the range of 500.degree. C. to 3000.degree. C., and (iii) depositing said silica particles on the surfaces of said carbon fibers and said carbon matrix.

A battery comprising as a cathode or anode electrode an electrode comprising (a) carbon fibers and (b) a carbon matrix which comprises carbon particles and is integrally combined with said carbon fibers, having continuous through-holes.

A battery comprising as a cathode or anode an electrode comprising a porous carbon sheet comprising (a) carbon fibers and (b) a carbon matrix which comprises carbon particles and is integrally combined with said carbon fibers, having continuous through-holes, said porous carbon sheet being prepared by depositing a phenolic resin in the form of a dispersion on a phenolic resin sheet comprising phenolic resin fibers, and carbonizing said phenolic resin and said phenolic resin sheet in an oxygen-free atmosphere at temperatures in the range of 500.degree. C. to 3000.degree. C.

A battery comprising as a cathode or anode an electrode comprising a porous carbon sheet comprising (a) carbon fibers, (b) a carbon matrix which comprises carbon particles and is integrally combined with said carbon fibers, having through-holes, and (c) silica particles deposited on the surfaces of said carbon fibers and said carbon matrix, said porous carbon sheet being prepared by (i) depositing a phenolic resin in the form of a dispersion on a phenolic resin sheet comprising phenolic resin fibers, (ii) carbonizing said phenolic resin and said phenolic resin sheet in an oxygen-free atmosphere at temperatures in the range of 500.degree. C. to 3000.degree. C., and (iii) depositing said silica particles on the surfaces of said carbon fibers and said carbon matrix.