▎ 摘　　要

NOVELTY - A lead-acid battery electrolyte additive comprises 5-10 pts. wt. alum, 2-3 pts. wt. graphene oxide, 7-14 pts. wt. carbon nanotubes, 10-20 pts. wt. silicon dioxide, 8-15 pts. wt. sulfate, 20-30 pts. wt. stannous sulfate, 17-25 pts. wt. 2,4,6-trimercapto-s-triazine trisodium salt, 22-26 pts. wt. disodium edetate, 5-15 pts. wt. sodium lignosulfonate, 7-13 pts. wt. humic acid, 2-4 pts. wt. sodium phosphate, 10-20 pts. wt. polyethylene glycol, 3-7 pts. wt. L-tryptophan and 100 pts. wt. deionized water. USE - Lead-acid battery electrolyte additive (claimed). ADVANTAGE - The lead-acid battery electrolyte additive improves electrochemical performance, capacity and cycle life of battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of lead-acid battery electrolyte additive.