▎ 摘　　要

NOVELTY - A nano-activator comprises 6-12 pts. wt. soluble metal salt, 0.5-1 pt. wt. stannous sulfate, 3-8 pts. wt. polyvinyl sodium sulfate, 5-9 pts. wt. water-absorbing amine polymer, 0.6-1.2 pts. wt. polyvinylpyrrolidone, 0.3-0.8 pt. wt. nano graphene oxide, 20-40 pts. wt. sulfuric acid solution, 0.5-1 pt. wt. reducing agent, 4-10 pts. wt. ammonium acetate, and 45-75 pts. wt. distilled water. USE - The nano-activator is useful for lead-acid storage battery. ADVANTAGE - The nano-activator: is convenient to use; can be prepared by a simple method using safe and environmentally-friendly raw materials under mild reaction condition in a large-scale industrial manner; and can be directly added to the electrolyte of the battery, so that the battery has capacity repair rate of as high as 100%, has fast activation and excellent repair function. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the nano-activator.