▎ 摘　　要

NOVELTY - Conductive agent comprises sulfonated graphene metal salt and carbon nano-tube. The sulfonated graphene metal salt and the carbon nano-tube are combined to form wire-surface. USE - Used as conductive agent. ADVANTAGE - The conductive agent: has double effects of electronic conduction and ion conduction; optimizes the electronic conduction and ion conduction in the battery; improves the multiplying power performance of the secondary battery, cycle performance, and low temperature performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the conductive agent; (2) electrode; and (3) secondary battery.