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:
May. 25, 1993
Filed:
Dec. 01, 1989
Applicant:
Inventor:
Karl-Wilhelm Vogel, Willingen, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
296231 ; 141192 ; 429 64 ;
Abstract
A method and unit for filling electrochemical cells, especially lithium cells, with an electrolyte. The cells are first evacuated while simultaneously checking the same for short circuits. The further filling process is terminated for any cell determined to have a short circuit. After the final vacuum level has been achieved, the cells are subsequently filled with the electrolyte while simultaneously monitoring the electrical voltage at the cells. The filling process is terminated for any cell determined to have a deviation from a prescribed voltage.