Not all *** batteries are ternary lithium batteries, and different types of batteries have **or ** risks under specific conditions. Let's take a closer look at the relevant knowledge of batteries.
First, the reason for the battery
Internal pressure increases: During the charging or discharging process of the battery, if the gas generated inside cannot be discharged in time, it will cause the internal pressure to rise.
Fracture of the diaphragm: The separator inside the battery is set to prevent the positive and negative electrodes from coming into direct contact. If the separator breaks, the positive and negative electrodes will come into direct contact, triggering a short circuit, which will generate a large amount of heat and cause the battery to thermally runaway.
High temperature environment: High temperatures can accelerate the chemical reactions inside the battery, making the battery more susceptible to thermal runaway.
Second, the characteristics of ternary lithium batteries
High energy density: Ternary lithium batteries have a high energy density, which means that it is able to store more energy with the same volume or weight.
Good cycling performanceTernary lithium batteries can maintain good performance in the process of charging and discharging, so they are widely used in applications that require frequent charging and discharging.
Poor thermal stability: The thermal stability of ternary lithium batteries is relatively poor, especially at high temperatures. When the temperature of a battery exceeds a certain threshold, the chemical reactions inside it are accelerated, increasing the risk of ** or **.
3. Other types of batteries
Lithium iron phosphate battery: This kind of battery has high thermal stability and can maintain good stability at high temperatures. Therefore, in some applications with high safety requirements, lithium iron phosphate batteries are preferred.
Lead-acid batteriesLead-acid batteries have a lower energy density, but they have a lower cost and still have a certain market share in some specific applications (such as emergency lighting, electric vehicles, etc.). However, lead-acid batteries also carry the risk of **or **, especially in the case of overcharge or overdischarge.
Ni-MH and Ni-Cd batteries: These two batteries have been used in some mobile devices in the past. They are relatively safe, but can also occur in extreme conditions such as high temperatures or overcharging.
4. Preventive measures
Use qualified batteries and chargers: Ensure that the batteries and chargers used meet the relevant standards and quality requirements.
Avoid overcharging and overdischarging: Follow the instructions for use of the battery and avoid overcharging or overdischarging.
Pay attention to the ambient temperature: Avoid using or recharging the battery in a high-temperature environment.
Regular inspection and maintenance: Regularly check the appearance and performance of the battery, and replace the damaged battery in time.
Understand and follow safety norms: Understand and follow safety norms and recommendations related to battery use.