With the development of low altitude economy, the application scenarios of drones are becoming more extensive. As the main power supply for drones, the performance of drone batteries is crucial, and their performance directly affects the flight time, stability, and overall performance of drones. So, which type of battery is more suitable for drones and what price range is it in?
Classification of drone batterie
The current drone batteries on the market are mainly lithium batteries, and there are also many types of lithium batteries. According to the three aspects of appearance, positive electrode material, and electrolyte, they can be mainly divided into the following categories:
Classified by appearance
According to different appearances. Lithium batteries can be divided into 18650 batteries, pouch batteries, blade batteries, etc
Classified by positive electrode material
It can be divided into lithium cobalt oxide batteries, ternary lithium batteries, lithium iron phosphate batteries, and lithium manganese oxide batteries
According to electrolyte composition
It can be divided into lithium polymer batteries, solid-state batteries, and commercial batteries
Market indicators for lithium batteries
| Lithium - battery Type | Energy Density | Price | Cycle Life | Safety |
|---|---|---|---|---|
| Lithium Cobalt Oxide Battery | ★★★★ | ★★ | ★★ | ★ |
| Lithium Nickel Manganese Cobalt Oxide Battery | ★★★ | ★★ | ★★★ | ★★ |
| Lithium Iron Phosphate Battery | ★★ | ★★★★ | ★★★★ | ★★★★ |
| Solid - state Lithium Battery | ★★★★★ | ★★ | ★★★ | ★★★★ |
Compared to conventional batteries, solid-state batteries are the preferred choice for drone batteries. Solid state batteries are currently emerging and have significant advantages over conventional batteries
Advantages of the plan
High energy density: The theoretical energy density of solid-state batteries can reach over 500Wh/kg, far exceeding traditional lithium batteries. The single energy density of the Xinjie "Falcon" lithium metal solid-state battery reaches 480Wh/kg, which is more than twice that of traditional batteries and can provide longer endurance and larger payload space for aircraft.
Outstanding safety: Solid state batteries have ultra high temperature resistance over a wide range of operating temperatures, with characteristics such as non flammability, high temperature resistance, and non corrosion. At the same time, solid electrolytes are used to avoid leakage and combustion risks of liquid electrolytes, making them particularly suitable for eVTOLs with extremely high safety requirements.
Lightweight adaptation: The characteristics of small size and light weight are highly compatible with the lightweight requirements of low altitude aircraft. For example, Xinwangda's second-generation semi-solid battery "Aviation Battery Gen2" has an energy density of 380Wh/kg and has been applied to some urban logistics drones.
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