▎ 摘　　要

NOVELTY - Preparing lead-acid storage battery repair liquid comprises (a) carrying out impurity-removing treatment on nano-graphene raw liquid to obtain purified nano-graphene raw liquid, and (b) mixing the purified nano-graphene raw liquid and acid solution. USE - The preparation of lead-acid battery repair solution is used in lead-acid power batteries i.e. electric vehicle battery, or lead-acid energy storage batteries i.e. UPS emergency power supply (all claimed). ADVANTAGE - The lead-acid storage battery repairing liquid has excellent repairing effect to the battery, can form a protective film on the polar plate of the battery to reduce the battery internal resistance, can decompose the large lead sulfate crystal to reach the purpose of high-efficiency sulfur removal, and can prolong the service life of battery. It can reduce the crystallinity of lead sulfate and improve the low temperature performance of battery; can improve the battery efficiency and battery capacity; can make the battery capacity lifting rate reaches more than 30%, DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a lead acid storage battery repairing liquid.