▎ 摘　　要

NOVELTY - Preparing battery plate of high cycle performance lead-acid battery comprises preparing positive plate of battery plate by (i) preparing positive plate raw materials comprising calcium, lanthanum, tin, aluminum, silver and lead powder, (ii) preparing lanthanum-tin master alloy and comprises (iia) dripping a part of tin into smelting furnace to melt tin, (iib) stirring lanthanum into tin solution to obtain lanthanum-tin alloy solution, and (iii) preparing calcium-aluminum master alloy by (iiia) adding aluminum and heating to melt and (iiib) stirring calcium until calcium is melted into aluminum solution to obtain calcium-aluminum alloy solution, and cooling calcium-aluminum alloy solution to obtain calcium-aluminum master alloy, and (iv) preparing positive plate by (iva) adding lead powder into smelting furnace and heating to melt, and (ivb) adding calcium-aluminum master alloy to smelting furnace, and stirring until calcium-aluminum master alloy is melted into lead solution. USE - The method is useful for preparing battery plate of high cycle performance lead-acid battery. ADVANTAGE - The battery plate: has excellent corrosion resistance and high mechanical strength. The method: realizes thinning alloy grain of anode plates; makes alloy intergranular interlayer thin; reduces sulfate ion in the lead-acid battery, so as to improve the positive plate alloy corrosion resistance; and improves mechanical strength of positive plates to prolong the service life of the battery polar plate of the lead acid battery by thinning of alloy grain. DETAILED DESCRIPTION - Preparing battery plate of high cycle performance lead-acid battery comprises preparing positive plate of battery plate by (i) preparing positive plate raw materials comprising 0.07-0.10 pts. wt. calcium, 0.004-0.025 pts. wt. lanthanum, 1.4-1.5 pts. wt. tin, 0.015-0.025 pts. wt. aluminum, 0.002-0.0025 pts. wt. silver and lead powder (remaining amount), (ii) preparing lanthanum-tin master alloy comprising 20 wt.% lanthanum and 80 wt.% tin and comprises (iia) dripping a part of tin into smelting furnace for heating to melt tin, (iib) dripping lanthanum into smelting furnace, and stirring until lanthanum is completely melted into tin solution to obtain lanthanum-tin alloy solution, and cooling lanthanum-tin alloy solution to obtain required lanthanum-tin master alloy, and (iii) preparing calcium-aluminum master alloy by (iiia) adding aluminum into smelting furnace and heating to melt and (iiib) adding calcium to smelting furnace, and stirring until calcium is melted into aluminum solution to obtain calcium-aluminum alloy solution, and cooling calcium-aluminum alloy solution to obtain calcium-aluminum master alloy, and (iv) preparing positive plate by (iva) adding lead powder into smelting furnace and heating to melt, (ivb) adding calcium-aluminum master alloy to smelting furnace, and stirring until calcium-aluminum master alloy is melted into lead solution, (ivc) adding lanthanum-tin master alloy to smelting furnace, and stirring while adding until lanthanum-tin master alloy is melted into the lead solution, (ivd) adding remaining tin to melting furnace and stirring to obtain positive plate alloy of lead-acid battery, and (ive) solidifying and cooling positive plate alloy.