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US 10,975,501 B2Granted
Carbon material and production method for same
AssigneeMitsubishi Chemical Corporation
InventorsManabu Yamatani, Tomoyuki Kotani, Tomoyoshi Yamashita, Kazunao Hareyama
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Abstract
A method for producing a carbon material, the method including a step of performing a carbonization treatment by heating an organic polymer material to a temperature higher than 400° C. in a non-oxidizing atmosphere containing a gaseous substance (A) composed of at least one of acetylene and an acetylene derivative.
Claims18
A method for producing a carbon material, the method comprising:
- performing a first carbonization treatment by heating an organic polymer material to a temperature in a range of 400° C. to 850° C. in a non-oxidizing atmosphere comprising a gaseous substance (A) comprising at least one of acetylene and an acetylene derivative, forming a first carbonized polymer material;
- and
- performing a second carbonization treatment by heating the first carbonized polymer material to a temperature equal to or higher than 1,000° C. in a nitrogen atmosphere.
Dependencies are inferred from the claim text.