Patent · US Active

Spreading means for the active material of a negative electrode

US8932755B2 · kind B2 · utility

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3Claims

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Assignee

Johnson Controls Autobatterie GmbH & Co. KGaA · DE

Inventor

Frank-Thomas Johns · Sarstedt, DE

Key dates

Filing date	Oct 28, 2009
Grant date	Jan 13, 2015
Priority date	—
Expiry date	May 15, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to performance improvements in lead accumulators and lead-acid batteries by admixing so-called expanders or spreading materials to the active negative materials. Succinates are proposed as a new synthetic and consequently chemically clearly defined spreading means that can be used in place of lignin sulphonates, particularly iminodisuccinates or succinyl groups or oligomers containing iminosuccinyl groups or polymer compounds, individually or in any mixtures.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.