How to check whether the lab prepared electrode and coin cell are qualified?

If the surface of the prepared battery electrode is flat, there is no significant particulate matter. In addition, there is no obvious material drop in the baking, room temperature cooling and transfer process, so it can be preliminarily judged that the preparation of pole sheet is qualified. Further comparison can be made on the quality, thickness of the battery electrode, and the dropping of the edge after punching the battery electrode sheet. If the quality and thickness of the battery electrode sheet vary greatly, and the edge of the electrode sheet is badly blanked, the preparation of the electrode is not qualified. The thickness and the edge of the uniform material should be selected to assemble the battery. TOB New Energy can offer a full set of coin cell lab equipment and materials, the high quality cathode and anode materials, electrode coating machine, roller press and electrode baking oven can guarantee better quality of the electrode.

The mold of the prepared coin cell and the simulated battery shell shall be flat and without damage, with no corrosion marks on the surface and no obvious liquid leakage. Use battery tester to test the open circuit voltage of the battery, If the open circuit voltage of the cathode electrode material half battery is more than 3v, and the open circuit voltage of the anode electrode material half battery is between 2.5v and 3.5v, there is no obvious short circuit in the assembled battery. If the open circuit voltage is abnormal, the assembled battery can be regarded as unqualified. Use a marker to mark the necessary battery information on the battery cathode case of the qualified button battery.

TOB’S coin cell tester system can provide most applications in battery testing fields such as electrode materials research, battery performance test, small scale battery formation, capability grading, battery pack testing, etc.