国家/地区 印度（3）
IPC部 C（3）
IPC大类 C07（3） A61（2）
IPC小类 C07D（3）
IPC
发明人
公开年 2021（3）
申请年 2020（2） 
专利权人

Electrochemical device used in electronic device, comprises positive electrode, cathode comprising cathode active material layer, isolation film, bonding layer, and lithium compound layer comprising lithium carbonate and/or lithium oxide.

ZHONG H

Formulation used to prepare dispersion of graphene in water in presence of surfactant contains chitosan solution having chitosan powder, water and acetic acid, and activated graphene i.e. black amorphous powder composition of raw graphene.

ALI M N

Preparing 3-substituted 4-hydroxycoumarin compound, involves mixing 4-hydroxycoumarin derivatives with unsaturated alfa-beta-ketone, adding water, amino functional solid catalyst, heating, crystallizing viscous mass using organic solvent.

HAIDER M A, ALAM M I, AKHTAR M W, SHAHADAT M, AHMAD S Z