**Key Performance Parameters**
- **Energy Density**: determines the battery's range, usually in Wh/kg. high energy density is suitable for portable devices and electric vehicles.
- **Power Density**: determines the discharge capacity of the battery, the unit is usually W/kg. high power density is suitable for devices that require fast discharge (e.g. power tools).
- **Cycle Life**: The number of charge/discharge cycles a battery can maintain its performance. Long cycle life is suitable for energy storage systems and electric vehicles.
- **Safety**: The stability of the battery under extreme conditions such as overcharging, over-discharging and high temperature. High safety is suitable for home energy storage and electric vehicles.
- **Cost**: Includes initial cost and full life cycle cost. Low cost is suitable for large-scale applications (e.g. energy storage systems).
- **Temperature Adaptability**: Battery performance in high or low temperature environments. Wide temperature range is suitable for outdoor equipment and alpine regions.