Advantages and disadvantages of lithium-ion batteries
Unique features: No memory effect, relatively light total weight.
Disadvantages: Relatively high cost, lower operating current, and does not undergo saturation (compared to nickel-metal hydride).
Lithium-ion batteries are classified into primary power lithium-ion batteries (non-rechargeable) and secondary power lithium-ion batteries (rechargeable batteries). Secondary power lithium-ion batteries are further divided into Li-ion lithium-ion batteries and Li-Polymer polymer lithium-ion batteries.
Digital cameras typically use rechargeable lithium-ion batteries, which are lighter in overall weight and have a 48% higher volumetric power density and thermal efficiency compared to nickel-metal hydride batteries. As a result, the production and sales volume of lithium-ion rechargeable batteries is gradually surpassing that of nickel-metal hydride batteries. These batteries have a shorter charging time, no memory effect, and can be charged up to 600 times. Especially with the Li-Polymer lithium-ion batteries developed in recent years, they not only have a smaller volume but are also not limited by the cylindrical or square internal space of typical batteries, resulting in an even lighter overall weight.
Because lithium-ion batteries are not fully charged, there is a risk of explosion if they are not used carefully. Therefore, a custom control chip is needed to prevent overcharging, which significantly increases the cost. Furthermore, the lack of standardized specifications for lithium-ion batteries has led to situations where batteries are difficult to find after a model is discontinued. However, these issues have been continuously improved over time.
