Alloy material for valve-control type sealed storage battery positive electrode plate grid and product structure

Abstract

The invention discloses an alloy material for a valve-control type sealed storage battery positive electrode plate grid. The alloy material comprises the following components based on mass percentage: 0.03-0.06% of Ca, 1.0-2.0% of Sn, 0.01-0.03% of Al and the balance of Pb. A positive electrode plate grid structure prepared from the lead-based alloy is a large-grid flat-panel-shaped membrane which consists of vertically and transversely-crossed ribs; the cross section of the ribs embedded in the positive electrode plate grid is at least hexagonal; and the line spacing between the ribs is 10-20mm. Through component design and structural design, the prepared material has better corrosion resistance; in addition, the effective sectional area of the cross sections of the ribs embedded in the positive electrode plate grid is larger than a rectangular effective sectional area in the same incircle; and in short, the positive electrode plate grid having thick and strong ribs and prepared from the alloy material prepared by the invention is high in rigidity, high in corrosion resistance, low in floating charge water loss in a high-temperature environment, and capable of prolonging the service life a matched battery.

Description

technical field

[0001] The invention relates to the technical field of accumulators. Specifically, the invention relates to an alloy material for positive electrode grids of a valve-controlled sealed accumulator. The invention also includes a positive electrode grid structure of a valve-regulated sealed accumulator. Background technique

[0002] Lead-acid battery is a kind of traditional industrial product. It has simple structure, convenient manufacture and excellent cost performance, so lead-acid battery still occupies a dominant position in the battery market. However, there are still some disadvantages in the lead-acid battery of the prior art, for example, the specific energy index of the lead-acid battery is relatively low, the service life is short, and the service life of floating charging in a high temperature environment is even shorter. In order to improve the environment where the lead-acid battery is installed, the conventional practice is to use air conditioner...