Process for producing a carbon material for an electric double layer capacitor electrode, and processes for producing an electric double layer capacitor electrode and an electric double layer capacitor employing it
AssigneesAsahi Glass Company, Limited, Kansai Netukagaku Kabushiki Kaisha
InventorsYasuo Shinozaki, Kazuya Hiratsuka, Katsuji Ikeda
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Abstract
A process for producing a carbon material for an electric double layer capacitor electrode, including activating a graphitizable carbon or a graphitizable carbon source to have its pore volume in the range of 0.6 to 1.5 cm3/g, and imparting mechanical impact force to the graphitizable carbon or the graphitizable carbon source activated in the activating step to reduce the pore volume to at most 75% of that before the mechanical impact force is imparted.
Claims32
A process for producing a carbon material for an electric double layer capacitor electrode, which comprises:
- activating a graphitizable carbon or a graphitizable carbon source to have its pore volume in the range of 0.6 to 1.5 cm3/g;
- and
- imparting mechanical impact force to the graphitizable carbon or the graphitizable carbon source activated in the activating step to reduce the pore volume to at most 75% of that before the mechanical impact force is imparted.
A process for producing a carbon material for an electric double layer capacitor electrode, which comprises:
- activating a graphitizable carbon or a graphitizable carbon source to have its pore volume in the range of 0.6 to 1.5 cm3/g;
- and
- imparting mechanical impact force to the graphitizable carbon or the graphitizable carbon source activated in the activating step to reduce the pore volume to at least 0.1 cm3/g and less than 0.6 cm3/g.
A process for producing a carbon material for an electric double layer capacitor electrode, which comprises:
- activating a graphitizable carbon or a graphitizable carbon source to have its pore volume in the range of 0.6 to 1.5 cm3/g;
- and
- imparting mechanical impact force to the graphitizable carbon or the graphitizable carbon source activated in the activating step to reduce the pore volume to at most 75% of that before the mechanical impact force is imparted, and at least 0.1 cm3/g and less than 0.6 cm3/g.
A process for producing an electric double layer capacitor electrode, which comprises:
- activating a graphitizable carbon or a graphitizable carbon source to have its pore volume in the range of 0.6 to 1.5 cm3/g;
- imparting mechanical impact force to the graphitizable carbon or the graphitizable carbon source activated in the activating step to reduce the pore volume to at most 75% of that before the mechanical impact force is imparted;
- and
- forming said carbon material and a binder into the electric double layer capacitor electrode.
A process for producing an electric double layer capacitor electrode, which comprises:
- activating a graphitizable carbon or a graphitizable carbon source to have its pore volume in the range of 0.6 to 1.5 cm3/g;
- imparting mechanical impact force to the graphitizable carbon or the graphitizable carbon source activated in the activating step to reduce the pore volume to at least 0.1 cm3/g and less than 0.6 cm3/g;
- and
- forming said carbon material and a binder into the electric double layer capacitor electrode.
A process for producing an electric double layer capacitor electrode, which comprises:
- activating a graphitizable carbon or a graphitizable carbon source to have its pore volume in the range of 0.6 to 1.5 cm3/g;
- imparting mechanical impact force to the graphitizable carbon or the graphitizable carbon source activated in the activating step to reduce the pore volume to at most 75% of that before the mechanical impact force is imparted, and at least 0.1 cm3/g and less than 0.6 cm3/g;
- and
- forming said carbon material and a binder into the electric double layer capacitor electrode.
A process for producing an electric double layer capacitor having an electrolytic solution and electrodes containing a carbon material and a binder, said process comprising:
- activating a graphitizable carbon or a graphitizable carbon source to have its pore volume in the range of 0.6 to 1.5 cm3/g;
- imparting mechanical impact force to the graphitizable carbon or the graphitizable carbon source activated in the activating step to reduce the pore volume to at least 0.1 cm3/g and less than 0.6 cm3/g;
- forming said carbon material and a binder into the electrodes.
A process for producing an electric double layer capacitor having an electrolytic solution and electrodes containing a carbon material and a binder, said process comprising:
- activating a graphitizable carbon or a graphitizable carbon source to its pore volume in the range of 0.6 to 1.5 cm3/g;
- imparting mechanical impact force to the graphitizable carbon or the graphitizable carbon source activated in the activating step to reduce the pore volume to at most 75% of that before the mechanical impact force is imparted,
- forming said carbon material and a binder into the electrodes.
A process for producing an electric double layer capacitor having an electrolytic solution and electrodes containing a carbon material and a binder, said process comprising:
- activating a graphitizable carbon or a graphitizable carbon source to have its pore volume in the range of 0.6 to 1.5 cm3/g;
- imparting mechanical impact force to the graphitizable carbon or the graphitizable carbon source activated in the activating step to reduce the pore volume to at most 75% of that before the mechanical impact force is imparted, and at least 0.1 cm3/g and less than 0.6 cm3/g;
- and
- forming said carbon material and a binder into the electrodes.
Dependencies are inferred from the claim text.