lithium 3400mah 3.7v 18650 battery.The difference between solar cells and lithium-ion batteries

　　Most smart electronic products today use rechargeable lithium-ion batteries that can be recycled. Especially for mobile electronic devices, due to their lightweight, portable, and versatile features, users are not limited by environmental conditions during use, and the operation time is long. Therefore, although lithium-ion batteries have battery life weaknesses, they have become the most common choice.

　　Although solar cells and lithium-ion batteries may sound like the same category of products, they are not necessarily the same. There is still the most fundamental difference between the two. Simply put, solar cells are a type of power generation equipment that cannot directly store electricity, while lithium-ion batteries are a type of battery that can continue to store electricity for users to use.

　　Working principle of solar cells (inseparable from sunlight)

　　Compared with lithium-ion batteries, one disadvantage of solar cells is that they cannot be separated from sunlight. Converting solar energy into electricity is synchronized with sunlight in real-time. Therefore, for solar energy, only daytime or even sunny days are their home ground. However, unlike lithium-ion batteries, as long as they are fully charged, they can completely break free from time and environmental limitations and be flexibly used.

　　Solar energy is the most generous gift from nature, but its utilization is not yet very widespread, and there are still problems with high costs and low conversion efficiency in using solar energy for power generation. Only by effectively improving the conversion rate of solar energy per unit area can we effectively utilize energy and achieve a perfect transition from solar energy to electricity. At that time, the mobility of solar cells will no longer be a problem.

　　Solar street lights are currently developing rapidly, and lithium-ion batteries are a controllable and pollution-free energy storage type battery. The new lithium-ion battery solar street lights can perfectly match the system. As the technology of lithium-ion batteries becomes more mature, their capacity becomes larger, their lifespan becomes longer, and their application range becomes wider. The application of lithium-ion batteries has now expanded to the field of solar street lighting, replacing lead-acid and colloidal batteries.

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