▎ 摘　　要

NOVELTY - Use of aggregation-induced emission molecules as probes in detection of carbon material cathode, is claimed. The detection object of the detection includes lithium intercalation and/or surface lithium separation of carbon material cathode. USE - The aggregation-induced emission molecules is useful as probes in detection of carbon material cathode of lithium-ion battery including lithium cobalt oxide battery, lithium nickel oxide battery, lithium iron phosphate battery and lithium manganese dioxide battery (all claimed). ADVANTAGE - The molecules: reacts with intercalation compounds formed after lithium intercalation or surface lithium precipitation, and changes fluorescence color and intensity before and after the reaction; and detects and calibrates the morphology, distribution and concentration of intercalation compounds and surface lithium, when in contact with the carbon material itself, and quenches the aggregation-induced emission fluorescence due to the conjugated planar structure.