• 专利标题:   Electrode for use as e.g. cathode of electrochemical capacitor e.g. supercapacitor has second active materials made of carbon nanofibers each interposed between first active material layers made of complex of graphene and carbon nanotubes.
  • 专利号:   US2013194724-A1, KR2013093859-A
  • 发明人:   KIM H K, BAE J H, YUN H J, KIM B K, HAK K K, JUN H B, HO J Y, BAE K K
  • 专利权人:   SAMSUNG ELECTROMECHANICS CO, SAMSUNG ELECTROMECHANICS CO
  • 国际专利分类:   H01G011/28, H01G011/22, H01M010/052
  • 专利详细信息:   US2013194724-A1 01 Aug 2013 H01G-011/28 201358 Pages: 8 English
  • 申请详细信息:   US2013194724-A1 US754229 30 Jan 2013
  • 优先权号:   KR010398

▎ 摘  要

NOVELTY - The electrode has an electrode current collector (120), first active material layers (110a-110n) made of complex of graphene and carbon nanotubes (CNT) above the electrode current collector, and second active material layers (210a-210n) made of carbon nanofibers (CNF). Each of the second active material layers is interposed between the first active material layers. The first active material layer has a thickness of 1-5 micrometers. The second active material layer formed between first active materials serves as a binding layer for binding the first active material thereabove and therebelow. USE - Electrode for use as e.g. cathode, anode of electrochemical capacitor (claimed) e.g. supercapacitor, in particular electric double layer capacitor (EDLC) cell applicable to actual secondary battery. ADVANTAGE - Enhances binding strength between first active material layers since each of the second active material layers formed between the first active material layers acts as a binding layer that binds the respective first active material layers thereabove and therebelow that are contacted with the second active material layer. The decrease in capacitance and increase in resistance due to dead pore volume of existing activated carbon based electrode are reduces since specific surface areas and low-resistance properties of two kinds of active materials constituting the electrode are sufficiently reflected in cell characteristics. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for fabricating an electrode. DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of the structure of a new electrode of a supercapacitor. First active material layers (110a-110n) Electrode current collector (120) Second active material layers (210a-210n)