国家/地区 韩国（3） 世界知识产权组织（2）
IPC部 B（2） C（2）
IPC大类 C01（2）
IPC小类 C01B（2）
IPC C01B032/194（2）
发明人 CHO S M（3）
公开年 2023（3）
申请年 2021（2） 
专利权人 MCK TECH CO .（2）

Lithium secondary battery comprises negative electrode current collector; negative electrode layer disposed on negative electrode current collector; intermediate layer disposed on negative electrode layer and solid electrolyte or separator; positive electrode layer disposed on intermediate layer.

CHO S M, LIM J M, KANG H S, KIM S H, KIM S W, CHOI H S, NAM Y J, SUCK C H, CHO S, LIM J, KANG H, KIM S, JIN X, CUI H, NANRONG Z

Manufacturing graphene composite structure by forming support body having observation unit corresponding to observation area and frame unit, and forming hydrophilic protective layer on upper surface of graphene layer by applying energy to graphene layer onto which organic component is transferred.

CHO S M, CHO M G, OH H G, CHO M, OHHONGGI

Wrinkle flattening unit for flattening wrinkles present in graphene composite structure, has rotation portion that comprises outer rotation unit having multiple suction holes communicating with branch passage and supporting one surface of composite structure.

CHO S M, CHO M G, OH H G, CHO M, OHHONGGI