With the rapid development of technology, lithium batteries have penetrated into every aspect of our lives, from mobile phones and laptops to electric vehicles, energy storage systems and other fields. However, for most people, the knowledge of the correct use and maintenance of lithium batteries is still relatively unfamiliar. This article will provide detailed answers to common questions in the use and maintenance of lithium batteries in the form of questions and answers. I hope it will be helpful to you.

1. Basic knowledge of lithium batteries

Q: What is a lithium battery?

Answer: Lithium battery is an electrochemical device that relies on the movement of lithium ions between the positive and negative electrodes to store and release energy. Compared with traditional lead-acid batteries and nickel-metal hydride batteries, lithium batteries have the advantages of high energy density, long cycle life, and low self-discharge rate.

Q: How do lithium batteries work?

Answer: When a lithium battery is charged, lithium ions move from the positive electrode to the negative electrode and store energy; when discharged, lithium ions move from the negative electrode back to the positive electrode and release energy. This process is achieved through the synergistic effect of electrolytes and separators.

2. Precautions for using lithium batteries

Question: How to use lithium batteries correctly?

Answer: When using lithium batteries correctly, you need to pay attention to the following points:

Avoid overcharging and over-discharging: Overcharging may cause the battery to heat, expand or even explode; over-discharging may cause the battery capacity to decrease or even damage the battery.
Use a matching charger: Different brands and models of lithium batteries may require different charging parameters, so please use a matching charger for charging.
Avoid high temperature environments: High temperatures will accelerate battery aging and increase safety risks, so please store batteries in a cool, dry place and avoid prolonged exposure to high temperature environments.
Avoid low temperature environments: Low temperature will reduce the capacity and discharge efficiency of the battery, so please try to avoid using lithium batteries in low temperature environments. If it must be used, appropriate insulation measures can be taken.

Q: Can I check lithium batteries?

Answer: According to ICAO regulations, lithium batteries are Category 9 dangerous goods and cannot be checked as baggage. When flying, you need to carry lithium batteries with you and comply with the relevant regulations of the airline.

3. Care and maintenance of lithium batteries

Q: How to extend the service life of lithium batteries?

Answer: To extend the service life of lithium batteries, you can take the following measures:

Maintain good charging habits: avoid overcharging or overdischarging for a long time. It is recommended to charge to 70%~80% of the battery capacity each time.
Regular deep discharge: Deep discharge every once in a while (that is, the battery is exhausted to the point that it cannot be turned on), which helps to activate the active materials inside the battery and improve the battery's capacity and discharge efficiency. But please be careful not to perform deep discharge operations frequently.
Avoid high temperature environments: As mentioned before, high temperatures will accelerate battery aging and increase safety risks. Therefore, please store batteries in a cool, dry place and avoid prolonged exposure to high temperatures.
Regularly check the battery status: Regularly check the appearance, voltage, internal resistance and other parameters of the battery, and detect and handle abnormal situations in a timely manner. If you find that the battery is bulging or leaking, please stop using it immediately and contact after-sales service personnel for inspection and repair.

Question: My lithium battery is bulging, what should I do?

Answer: If your lithium battery is bulging, please stop using it immediately and contact after-sales service personnel for inspection and repair. The bulging may be caused by excessive internal pressure in the battery or leakage of electrolyte. If not handled in time, it may cause a safety accident. During the handling process, please follow the guidance and recommendations of the after-sales service personnel and do not disassemble or repair the battery by yourself.

Q: How to clean and maintain lithium batteries?

Answer: During daily use, it is recommended that you regularly wipe the battery surface with a clean soft cloth to remove dust and stains. Avoid using chemical cleaners or wet cloths to wipe the battery surface to avoid damaging the battery. In addition, if you do not use the lithium battery for a long time, please store the battery in a cool and dry place and charge it regularly to maintain its activity.

4. Safety knowledge of lithium batteries

Q: Will lithium batteries explode?

Answer: Although lithium batteries are safe under normal conditions of use, thermal runaway may occur under certain extreme circumstances (such as overcharging, high temperature environments, etc.), resulting in explosion or fire. ACCIDENT. To ensure the safety of you and others, please strictly abide by the usage precautions and maintenance requirements of lithium batteries.

Question: How to deal with a lithium battery fire accident?

Answer: If you encounter a lithium battery fire accident, please stay away from the fire source immediately and call the emergency hotline for help. While waiting for rescue, you can try to use a fire extinguisher or other fire-extinguishing equipment for preliminary fire-fighting treatment. But be careful not to douse the flames directly with water, as water may short-circuit the battery and intensify the fire. At the same time, avoid inhaling smoke and toxic gases and try to keep your respiratory tract open.

In short, proper use and maintenance of lithium batteries is essential to ensure their performance and extend their service life. We hope that the above questions and answers will be helpful to you and enhance your understanding and emphasis on the safety and maintenance of lithium batteries.