Samsung Sdi Co., Inc.

Ji-Man Kim

Chan-ho Pak

Hyuk Jae Chang

Jae-Il Seong

Chan-Ho Pak

Dae-Jong c/o Samsung Adv Inst Of Technology Yoo

A rechargeable battery according to an exemplary embodiment includes: an electrode assembly charging and discharging a current; and a pouch case receiving the electrode assembly and formed with a joint part on a border, wherein the joint part includes a plurality of pressing parts pressing the pouch case to be joined and formed with a non-pressure part in each center thereof.

Rechargeable battery

A hierarchical mesoporous carbon is provided in which a total volume of mesopores of the hierarchical mesoporous carbon is 80% or greater of a total volume of pores of the hierarchical mesoporous carbon; a volume of mesopores with a average diameter greater than 20 nm and no greater than 50 nm is 3% or greater of the total volume of the pores; and a volume of mesopores with a average diameter greater than 2 nm and no greater than 10 nm is 65% or greater of the total volume of the pores. The hierarchical mesoporous carbon, which also contains macropores, has an optimized mesoporous distribution characteristic, and has an increased total volume of pores, thereby having a significantly improved catalytic activity when used as a catalyst support. When such a supported catalyst is used in a fuel cell, supply of fuel and transporting of byproducts are facilitated.

Method of manufacturing hierarchical mesoporous carbon and carbon obtained thereby

A hierarchical mesoporous carbon is provided in which a total volume of mesopores of the hierarchical mesoporous carbon is 80% or greater of a total volume of pores of the hierarchical mesoporous carbon; a volume of mesopores with a average diameter greater than 20 nm and no greater than 50 nm is 3% or greater of the total volume of the pores; and a volume of mesopores with a average diameter greater than 2 nm and no greater than 10 nm is 65% or greater of the total volume of the pores. The hierarchical mesoporous carbon, which also contains macropores, has an optimized mesoporous distribution characteristic, and has an increased total volume of pores, thereby having a significantly improved catalytic activity when used as a catalyst support. When such a supported catalyst including the hierarchical mesoporous carbon as a support is used in a fuel cell, supply of fuel and transporting of byproducts are facilitated.

Growing community of inventors

Yongin-si, South Korea

Ji-Man Kim