There are multiple potential problems with lithium batteries, but determining the “biggest problem” can vary depending on the application scenario, conditions of use, and personal opinion. However, here are some of the main issues that lithium batteries are generally concerned about:
Safety issues
Lithium batteries will generate heat during charging and discharging, and if the internal temperature is too high, it may lead to safety problems such as battery short circuit, fire, and explosion. Especially in abnormal situations such as high temperature, overcharge, overdischarge, and external short circuit, the safety risk of lithium batteries will increase.
Life limit
The life of a lithium battery is affected by the number of cycles and temperature, and the higher the number of cycles and temperature, the shorter the lifespan. In addition, the life of lithium batteries is also related to factors such as the use environment, charging method, and number of charges.
Higher price
Lithium batteries are more expensive to produce, so they are also more expensive than some other battery types. This somewhat limits its use in some cost-sensitive applications.
Long charging time
Compared to other battery types, lithium batteries charge slower and take longer to fully charge. This may affect its use in some applications where fast charging is required.
Degradation of performance in low temperature environment
Lithium batteries will have problems such as reduced capacity and shortened cycle life in low temperature environments, so they are not suitable for long-term use in low temperature environments.
It should be noted that although lithium batteries have the above problems, their advantages (such as high energy density, light weight, environmental protection, etc.) make them still the first choice in many applications. At the same time, with the continuous progress of technology, the performance and safety of lithium batteries are also improving, and it is expected to solve some existing problems in the future.