The Pacific Automotive Network ternary lithium battery can be placed on its side. Taking “electric vehicle lithium battery” as an example, it can be placed aside for a short time, but not often. Most electric vehicle batteries can be placed upside down, but those containing acid cannot be used. They should not be charged backwards, otherwise sulfuric acid will leak and the battery will be damaged. To determine if the battery can be added with acid, check if the battery cover can be opened. Whether it is a lithium battery or a nickel-metal hydride battery, there is no problem whether to put it upside down or not. If it is a lead acid battery, it generally cannot be reverse charged.
Take the example of “lithium battery for electric vehicles”. It can fall sidewaysent for a short time, but not often. Most electric vehicle batteries can be placed upside down, but those containing acid cannot be used. They should not be charged backwards, otherwise sulfuric acid will leak and the battery will be damaged.
To determine if the battery can be added with acid, check if the battery cover can be opened. Whether it is a lithium battery or a nickel-metal hydride battery, there is no problem whether to put it upside down or not. If it is a lead acid battery, it generally cannot be reverse charged. The lead-acid batteries currently used in electric vehicles are all sealed colloidal electrolyte batteries, which can be placed sideways or upside down. In the car battery box, if you take it apart and look at it, you can see if it is placede vertically or horizontally. This type of battery does not need to be added with water, and water cannot be added.
Note: Electric vehicle batteries are generally maintenance-free lead-acid batteries. The difference from ordinary lead-acid batteries is that there is a layer of sponge substance sandwiched between the plates, and the electrolyte is placed in an electrolyte layer. absorbed there. Theoretically speaking of how to place it, the electrolyte is sandwiched between the plates and the charging and discharging effects are the same. However, if the battery is of poor quality, the electrolyte will still leak. Lead acid batteries generally cannot be reverse charged. Lithium batteries and nickel-metal hydride batteries have no problem being placed upside down or not.
Three taboos of lithium batteries: temperature Li batteriesthium are afraid of high temperatures. Large current, for example, 18650 battery cells are discharged at 3C and electric vehicles are 8000W. The battery cells used are lower than the discharge current of electric vehicles. This will cause the lithium battery to be too high in temperature, current. be too large, and the service life will be shortened, and it will also cause the case to bulge and be scrapped. Electric vehicles are very powerful and very fast. It is recommended to choose 18650 batteries with a current of 10C. It is obviously very important to choose the right battery. When storing at full power, the ternary lithium battery is fully charged to 4.35V. The market protection board stops charging at 4.2V. Generally, when storing electric vehicle lithium batteries for a long time, 50% of the full charge is the charge. IslandIt is preferable that the long storage time at full power results in a reduction in the capacity of the lithium battery. Except for lithium iron phosphate and lithium titanate, be sure to choose a better quality protective board.
(Images/Text/Photos: Pacific Automotive Network Q&A)
How to store lithium batteries when not in use for a long time ?
< p>Leaving a lithium iron phosphate battery with less than 10% charge overnight is not an ideal practice. This is because a phenomenon called over-discharge occurs when lithium batteries are in a low-consumption state, especially when they are near or reach zero power.Over-discharge means that when the battery is in a low-power state, the voltage inside the battery continues to drop, causing the battery voltage to drop.ie below its safe operating range. This could cause the battery to diminish or even cause permanent damage.
Therefore, it is recommended to charge as soon as possible when the battery power is less than 10% to avoid excessive discharge. If it cannot be charged immediately, you can choose to place the battery in a relatively stable environment to avoid over-discharge and over-discharge.
In addition, leaving the battery in a low power state for a long time can also cause the battery to self-discharge, that is, the battery discharges itself. even when not in use. This will cause the battery charge to further decrease.
In short, in order to protect the performance and life of the lithium iron phosphate battery, it is recommended to charge it as soon as possible when the powere the battery is less than 10%, and avoid leaving the battery in a low-power state for a long time.
1. If the lithium battery is not used for a long time, it should be charged to 50% to 80% of its capacity, removed from the instrument and stored in a dry and cool environment. should be charged every 3 months to avoid storage time. If it is too long, the battery will be too weak due to self-discharge, causing irreversible capacity loss.
2. The self-discharge of lithium batteries is affected by ambient temperature and humidity. High temperature and humidity will accelerate the battery's self-discharge. It is recommended to store it. the battery at 0℃~20℃ in a dry environment.
3. The newly purchased lithium battery will have a certain energy, so users can use it directly when they receive the batteryie, use the remaining energy and then charge it after that. Lithium battery activity can be fully activated in 2-3 times of normal use. Here's a special reminder: don't believe the seller or internet rumors. New lithium batteries should be activated for up to 12 hours when first used.
4. Lithium batteries have no memory effect and can be charged at any time. However, it should be noted that lithium batteries cannot be over-discharged. will result in an irreversible loss of capacity. When the machine reminds you that the battery is low, it immediately begins charging.
5. In daily use, freshly charged lithium batteries should be left aside for half an hour until the charging performance is stable before use, otherwise the battery performance will be affecteds.
6. When not using the instrument, be sure to remove the battery and store it in a dry and cool place.
7. Pay attention to the use environment of lithium batteries: the charging temperature of lithium batteries is 0 ℃ ~ 45 ℃ and the discharge temperature lithium batteries is -20 ℃. ~60℃.
8. Do not mix batteries with metal objects to avoid metal objects touching the positive and negative terminals of the battery, causing a short circuit, damaging the battery. battery or even causing danger. .
9. Do not hit, acupuncture, step on, modify or expose the battery to the sun, and do not place the battery in a microwave, at high voltage or other environment.
10. Use a corresponding lithium battery charger to charge the battery. Do not use battery chargerse lower quality or other types to charge lithium battery.