About 23 results
https://drivepatents.com/patents/1395926 · 25 Dec 2024
Dispositif de détermination d'impédance d'une pluralité d'étages (2) d'une pile à combustible (3), le dispositif comprenant un système de mesure (11) ayant un système d'excitation (C1) commun à la pluralité d'étages (2), un circuit équivalent (C...
https://drivepatents.com/patents/1366494 · 11 Jul 2024
A battery measurement device that measures a state of a secondary battery includes: a signal control section that causes an alternating-current signal to be outputted from the secondary battery or inputs an alternating-current signal to the secondary batte...
https://drivepatents.com/patents/958380 · 19 Aug 2015
An impedance measuring device for a laminated battery outputs an alternating current to an impedance measurement object, the impedance measurement object including at least a laminated battery and computes an impedance of the laminated battery on the basis...
https://drivepatents.com/patents/967977 · 29 Oct 2014
The invention relates to a battery pack system (1), comprising: -several stages connected in series including an electrochemical accumulator (4) and a switch; -an electrical power connection (71,72); -a control device (52) connected to the stages by the el...
https://drivepatents.com/patents/987512 · 14 Aug 2013
The invention provides a battery condition estimating method and a power system permitting to estimate aging level or discharge ability of a battery in high precision by reducing transient changes of response voltages caused by repetitive discharges. A rec...
https://drivepatents.com/patents/992221 · 27 Mar 2013
A rechargeable battery (10) is used with a plurality of battery cells restrained by a restraint member. After the rechargeable battery has the restraint member removed therefrom and is thus disassembled when the rechargeable battery is subsequently re-rest...
https://drivepatents.com/patents/996191 · 7 Nov 2012
A circuit arrangement for determining impedance of a battery cell is provided. A first circuit is configured to generate sine and cosine waveforms having N sample values per period. A second circuit is coupled to an output of the first circuit and is confi...
https://drivepatents.com/patents/996443 · 31 Oct 2012
A battery system and a method for increasing an operational life of a battery cell are provided. The battery system includes a voltage sensor that generates a first signal indicative of a voltage level output by the battery cell, and a current sensor that ...
https://drivepatents.com/patents/1014105 · 6 Apr 2011
A method and apparatus for measuring battery cell DC impedance by controlling charging of the battery cell. The method includes real-time characterization of a battery, (a) measuring periodically a DC impedance of the battery to determine a measured DC imp...
https://drivepatents.com/patents/1015644 · 23 Feb 2011
The present invention provides a method for regenerating a secondary battery. When the average thickness of an oxidized layer formed on a surface of an active material of a negative electrode of the secondary battery is less than a predetermined standard, ...