Lead-acid batteries and positive plate and alloys therefor

Details Lead-acid batteries and positive plate and alloys therefor Lead-acid batteries and positive plate and alloys therefor

H - Electricity

01

M

H01M 4/68 (2006.01) C22C 11/06 (2006.01) H01M 4/14 (2006.01) H01M 4/38 (2006.01) H01M 4/73 (2006.01) H01M 4/02 (2006.01) H01M 10/06 (2006.01)

Patent

CA 2419248

Lead-acid cells and batteries and positive plates for such cells and batteries are provided. The positive plate comprises a grid supporting structure having a layer of active material pasted thereto, the grid supporting structure comprising a lead-based alloy consisting essentially of lead, from about 0.02% to about 0.06% calcium, from about 0.2% to about 3.0% tin, and from 0.01% to about 0.02% silver. A positive plate in accordance with the invention has excellent mechanical properties, is satisfactory for use in lead-acid cells and batteries, and imparts enhanced electrical performance to cells and batteries using such positive plates.

L'invention concerne des cellules et des batteries au plomb et des plaques positives pour de telles cellules et batteries. La plaque positive comprend une structure, présentant une couche de matière active collée, soutenant une grille. Cette structure soutenant la grille contient un alliage au plomb consistant essentiellement de plomb, d'environ 0,02 % à environ 0,06 % de calcium, d'environ 0,2 % à environ 3,0 % d'étain, et de 0,01 % à environ 0,02 % d'argent. Une plaque positive selon l'invention présente d'excellentes propriétés mécaniques, est satisfaisante pour une utilisation dans des cellules et des batteries au plomb, et confère des propriétés électriques améliorées aux cellules et batteries utilisant de telles plaques positives.

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