How to choose the battery of portable electronic equipment?

In recent years, lithium-ion batteries have gradually become the mainstream power source for portable electronic devices, and is considered to be the most promising power source that can be applied to electric vehicles and hybrid electric vehicles. In addition, lithium-ion batteries can store and convert green energy, such as solar and wind energy, to alleviate the intermittent and unstable nature of the above green energy and achieve the balance of energy supply and demand.

Lithium ion battery is a very important energy storage technology. Compared with lithium, sodium is abundant, widely distributed, low cost, and has similar physical and chemical properties with lithium, so the research of sodium ion battery once again attracted extensive attention from the scientific research community and industry. Compared with lithium ion batteries, the energy density of sodium ion batteries is usually low, although not suitable for application in the field of portable electronic equipment and electric vehicles with high demand for energy density, but suitable for application in low speed electric vehicles, communication base stations, home energy storage and other fields with low demand for energy density and cost sensitivity.

Lithium-ion battery rechargeable battery life is long, high capacity, high energy density, can cycle more than 1000 times, although the price is more expensive than dry battery, but if often used, is relatively cost-effective, rechargeable battery capacity is lower than the same specification of alkali manganese battery. For one thing, rechargeable batteries offer a higher capacity than most primary batteries.