| 摘要 |
<p>A sealed lead-acid cell (20) and a positive plate (10) for a sealed lead-acid battery are provided. The positive plate (10) comprises a grid supporting structure (14) having a layer of active material (18) pasted thereto, the grid supporting structure (14) comprising a lead-based alloy consisting essentially of lead, from about 0.02 % to about 0.05 % calcium, from about 1.5 % to about 3 % tin, and from about 0.01 % to about 0.05 % silver. A positive plate in accordance with the invention has excellent mechanical properties, and is satisfactory for use in a lead-acid cell.</p> |
