Patent · US Expired

Rechargeable electric battery

US6733921B2 · kind B2 · utility

4Cited by

4References

17Claims

0Family size

Assignee

VB Autobatterie GmbH · DE

Inventors

Gerolf Richter · Hildesheim, DE
Peter Streuer · Hannover, DE
Oliver Bosch · Garbsen, DE

Key dates

Filing date	Apr 3, 2002
Grant date	May 11, 2004
Priority date	—
Expiry date	Jun 6, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A rechargeable electric battery including a plate block arranged in a plastic block box, positive and negative electrodes located in the box and electrically isolated by separators and conductively connected by sulfuric acid electrolyte, a cover for the box which has closure plugs and/or acid state indicators fitted in a gas-tight manner to openings therein, wherein at least a portion of an inner surface of the battery is electrically conductive or is provided with an electrically conductive layer, beginning in an area of a sealing seat of the closure plug or of the acid state indicator, and is electrically conductively connected to the electrolyte.

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