The manufacturing method of a carbon fiber sheet and a carbon fiber sheet

The present invention addresses the problem of providing a carbon fiber sheet which is more easily manufactured than conventional carbon fiber sheets and a method for manufacturing the same. Provided is a method for manufacturing a carbon fiber sheet， the method including a carbon fiber forming step of heating a resin sheet to a carbonization temperature at a heating rate of 15，000 °C/sec or higher， thereby forming a carbon fiber from the resin sheet. In the carbon fiber forming step， the resin sheet is preferably irradiated with an energy ray having an output density of 130 W/mm 2 or higher and an amount of irradiation energy of 0.05 J/mm2 or more. The present invention addresses the problem of providing a carbon fiber sheet which is more easily manufactured than conventional carbon fiber sheets and a method for manufacturing the same. Provided is a method for manufacturing a carbon fiber sheet， the method including a carbon fiber forming step of heating a resin sheet to a carbonization temperature at a heating rate of 15，000 °C/sec or higher， thereby forming a carbon fiber from the resin sheet. In the carbon fiber forming step， the resin sheet is preferably irradiated with an energy ray having an output density of 130 W/mm2 or higher and an amount of irradiation energy of 0.05 J/mm2 or more.