On the judgment method of Panasonic battery electrode
There may be many people who are not very clear about the judgment method of Panasonic battery electrode, so let Panasonic battery manufacturer introduce it to you in detail today!
1. Distinguish according to the characteristics of battery electrode planning
In the production planning of commonly used storage battery, the thicker one end of the battery post is positive electrode, and the thinner one is negative electrode. The color of the battery post can be identified together, in which the positive pole is dark brown, while the negative pole is dark gray. In addition, the positive and negative signs of some batteries are marked with English letters, i.e. P is marked as positive electrode and N as negative electrode, which can never be mistaken during repair and charging.
2. Use multimeter to measure voltage block
The multimeter can be turned to the DC gear, and the two probes are respectively connected to the two electrodes of the battery. If the battery displays the normal voltage value at this time, it is proved that the electrode touched by the red probe is the positive electrode of the battery, while the negative electrode is at the black probe. Sometimes it is measured that there is no normal voltage in the battery, then the weak micro storage capacity of the battery can be measured to distinguish. When the two probes touch the battery electrode, if the probe shakes slightly to the right, it is proved that the positive electrode of the battery is at the red pen and the negative electrode is at the black pen. However, if the pointer of the multimeter moves to the left (the pointer reversely strikes), it is proved that the place where the red pen touches is the negative electrode of the battery.
3. Select short circuit of conductor for identification
Two copper core power cables are respectively connected to the electrodes of the old battery to be measured, then the electrolyte (brine) is normally poured into a glass cup, and the two ends of the power line are respectively pierced into the teacup and placed on the sides of the glass (respectively, and the two line can not be touched in the cup). Then the bubble condition of the lead ends in the electrolyte is investigated, assuming that the bubbles of a power line end are bubbles. When there are more bubbles on the top, it means that one end of the power line connecting the battery is a negative electrode, and the other end of the bubble is a positive electrode.
4. Measurement with rectifier diode
The rectifying diode in the power supply voltage regulator has the function of unidirectional conduction, so a rectifying diode can be found. A 40W incandescent lamp can be connected in series according to the sequence of one pile of the battery → diode + end → diode end → incandescent lamp → another pile of the battery to form a series circuit of electric lamps. At this time, if the incandescent lamp in the circuit is lighted, it is proved that the pole of the diode and the pile of the battery are connected The connection is the positive electrode of the battery, and the other end is the negative electrode of the battery.