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:
Nov. 01, 1988
Filed:
Jan. 29, 1987
Per A Selanger, August och Huldas vag, SE;
Sab Nife AB, Landskrona, SE;
Abstract
A method for charging a sealed, secondary electrochemical power source having with a water based electrolyte (20), a gas space (20) and the possibility of recombination in accordance with the oxygen cycle during pressure stabilization at a low controlled level. Charging takes place at a constant d.c. voltage whilst the pressure inside the gas space of the power source is reduced by evacuation. An arrangement for implementing the method consists essentially of a vacuum pump which is connected to the gas space of the power source via an evacuation line, and of a constant d.c. voltage source. The vacuum pump is so arranged as to come into operation when the power source is being charged.