Method for preparing cell zinc paste

Abstract

The invention discloses a method for preparing a sealing material of a lead-acid battery, and relates to a method for preparing a zinc paste of an alkaline zinc-manganese battery. The zinc powder mixture used in the method comprises lead-free mercury-free zinc alloy particles, polyacrylic acid, polyacrylate, sodium polyacrylate powder and indium oxide powder, wherein the lead-free mercury-free zinc alloy particles comprise the following elements: aluminum, bismuth, lanthanum, yttrium, cerium rare earth element and zinc. By tests of the battery manufacturers, compared with other zinc paste materials in the markets, the discharging capability of the zinc paste used for the alkaline zinc-manganese battery is greatly increased, and the usage life can be effectively prolonged, and the method enables environmental protection due to no lead and no mercury.

Description

technical field

[0001] The invention relates to a method for preparing battery materials, in particular to a method for preparing battery zinc paste. Background technique

[0002] Alkaline zinc-manganese batteries are by far the most widely used civilian battery products. With the popularization of digital technology, the functions of small electrical appliances are increasing day by day, and the requirements for high-power discharge of alkaline batteries are getting higher and higher. Zinc paste is an important component material for the preparation of alkaline zinc-manganese batteries, and its performance plays a key role in the discharge capacity and service life of alkaline batteries. In addition, many of the zinc pastes of current alkaline zinc-manganese batteries contain mercury and lead, which causes adverse effects on the environment after the batteries are discarded. Therefore, there is an urgent need to provide a zinc paste for a lead-free and mercury-free alkali...