The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 05, 1995
Filed:
Feb. 09, 1994
Detlev Hoge, Gifhorn, DE;
Uwe Kohler, Kelkheim, DE;
Varta Batterie Aktiengesellschaft, Hanover, DE;
Abstract
A gas-tight nickel/hydride battery with a high oxygen consumption rate and a correspondingly low internal pressure has a stacked arrangement of positive and negative electrodes wherein the negative electrodes are divided in two with a coarse supporting framework as a space between the resulting partial electrodes. Gas impermeable microporous separators deflect the oxygen stream emerging from the positive electrodes to faces of the negative partial electrodes. The spacer provides an inner space with walls defining an enlarged area for reducing the deflected oxygen stream. Because the micropores are completely filled with electrolyte due to their capillary activity, the microporous separators also permit the construction of nickel/hydride batteries with cell heights which could not otherwise be achieved in alkaline batteries with nonwoven fabric separators.