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https://drivepatents.com/patents/1385784 · 4 Jun 2026
The present disclosure relates to a device for removing gas of a secondary battery and a method of manufacturing the secondary battery using the same. The device for removing gas of the secondary battery according to the present disclosure includes a vacuu...
https://drivepatents.com/patents/1366734 · 11 Jul 2024
A filling head for filling an electrochemical cell with electrolyte has a pre-chamber and a filling chamber, as well as a shutoff element which is movable between an open position and a closed position and releases an opening between the pre-chamber and th...
https://drivepatents.com/patents/1366735 · 11 Jul 2024
A liquid injection device includes a liquid injector including a liquid injection hopper connected to a storage tank configured to store an electrolyte and a valve including an injection nozzle connected to the liquid injector to inject the electrolyte int...
https://drivepatents.com/patents/1084790 · 18 Aug 2004
A single point watering system for use with a lead-acid battery having a plurality of battery cell access ports. The system comprises a plurality of refill valves and a manifold having (i) a water feed tube with at least one external port and a plurality o...