Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1999-06-22
2000-09-12
Nuzzolillo, Maria
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
29 2, 429233, H01M 464, H01M 466, B23P 1300
Patent
active
061175943
ABSTRACT:
A lead acid cell including a positive plate or grid has been discovered involving Pb/Ca/Sn/Ag alloy. An interaction between tin and silver which leads to optimum tin and silver levels which are substantially different than those indicated in the prior art. The described optimum tin and silver levels results in a positive alloy with superior mechanical properties and improved corrosion resistance which leads to superior battery life in present day SLI applications. In a preferred manner, the alloy includes lead, tin in the range of about 0.8% to about 1.17%, and silver in the range of grater than 0 to about 0.015%, the percentages being based upon the total weight of the lead-based alloy.
REFERENCES:
patent: 4092462 (1978-05-01), Giess et al.
patent: 4939051 (1990-07-01), Yasuda et al.
patent: 5691087 (1997-11-01), Rao et al.
patent: 5834141 (1998-11-01), Anderson et al.
patent: 5874186 (1999-02-01), Rao et al.
Hansen Christian P.
Korinek Paul D.
Taylor M. Eric
Toennessen Albert
Dove Tracy
Johnson Controls Technology Company
Nuzzolillo Maria
VB Autobatterie GmbH
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