Humic acid bonded metal foil film current collector and battery and supercapacitor containing the current collector

摘要

A battery or supermarket comprising: (a) a thin metal foil having two opposing parallel primary surfaces; and (b) a thin film of humic acid (HA) or a mixture of HA and graphene having a hexagonal carbon surface. In the humic acid bonded metal foil current collector in the capacitor, both HA or HA and graphene are chemically bonded to at least one of the two primary surfaces, and the thin film is 10 nm to 10 μm thick, 0.01 wt% to Oxygen content of 10% by weight, interplanar spacing between hexagonal carbon planes of 0.335 to 0.50 nm, physical density of 1.3 to 2.2 g / cm3, substantially parallel to each other and parallel to the primary surface Having all oriented hexagonal carbon faces, thermal conductivity greater than 500 W / mK and / or electrical conductivity greater than 1,500 S / cm when measured alone without metal foil Shown, humic acid bonding metal foil current collector. [Selection] Figure 3A