▎ 摘　　要

NOVELTY - A ceramic capacitor consists of dielectric ceramic layer(s) and electrode layer(s) deposited on the ceramic layer. The electrode layer consists of a graphene electrode layer or an exfoliated graphite electrode layer in direct contact with or bonded to the ceramic layer. The graphene electrode layer has a thickness of greater than or equal to 2 nm and consists of discrete sheets of a stacked graphene or a graphene composite material containing 0.1-99 wt.% discrete sheets of a graphene material dispersed in a matrix material or bonded by a binder material to form the graphene electrode layer. USE - Ceramic capacitor e.g. ceramic disc capacitor (claimed), multilayer ceramic chip capacitor, feed-through ceramic capacitor and ceramic power capacitors used in high-frequency circuits of TVs, LCD displays, Tablets and smartphones. ADVANTAGE - The ceramic capacitor has reduced or eliminated electrode migration, has excellent compatibility with dielectric material, soldering material and/or connecting wires, no or little metal oxidation of electrodes and reduced or eliminated heat accumulation. The capacitor is obtained from simplified electrode composition and contains easily processed electrodes. DETAILED DESCRIPTION - A ceramic capacitor consists of dielectric ceramic layer(s) and electrode layer(s) deposited on the ceramic layer. The electrode layer consists of a graphene electrode layer or an exfoliated graphite electrode layer in direct contact with or bonded to the ceramic layer. The graphene electrode layer has a thickness of greater than or equal to 2 nm and consists of discrete sheets of a stacked graphene or a graphene composite material containing 0.1-99 wt.% discrete sheets of a graphene material dispersed in a matrix material or bonded by a binder material to form the graphene electrode layer. The graphene material is chosen from single-layer or multi-layer pristine graphene sheets having less than 0.01 wt.% non-carbon elements or single-layer or multi-layer non-pristine graphene sheets having at least 0.01 wt.% non-carbon elements. The multi-layer pristine or non-pristine graphene sheets have a thickness of less than 100 nm. The non-pristine graphene is chosen from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, doped graphene, and/or chemically functionalized graphene. The binder material or matrix material is chosen from a metal, carbon, polymer, pitch, glass, metal oxide, ceramic, and/or organic material. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart explaining the production of exfoliated graphite products. Graphite particles (20) Graphite intercalation compound (21) Exfoliated graphite (24) Layers of graphite oxide (37a) Expanded graphite flakes (49)