钠电池和干电池有什么区别？

Is Sodium-ion Battery the same category as lead-acid battery?    

钠电池和干电池属于完全不同的电池品类，核心差异体现在电池属性、使用寿命、储能原理、使用成本、环保性等多个维度。第一，属性不同：干电池是一次性原电池，电量耗尽后无法充电复用；钠电池是二次可充电电池，可循环充放电数千次。第二，原理不同：干电池依靠不可逆化学反应储能，反应结束即报废；钠电池依靠钠离子可逆嵌脱储能，可反复循环。第三，性能不同：干电池储能效率低、放电不稳定、无法大功率输出；钠电池充放电稳定、倍率性能好、适配大功率设备。第四，成本与环保：干电池单次使用成本高、废旧污染大；钠电池可长期复用，综合成本更低、绿色环保。民用遥控器、手电筒多用干电池，而动力、储能场景均优先使用钠电池。

Sodium-ion Battery and lead-acid battery are by no means the same category of batteries. There are essential differences between them in energy storage principle, material system, performance parameters, service life, environmental protection level and application scenarios. Sodium-ion Battery is a high-end upgrade and replacement product of lead-acid battery. Lead-acid battery relies on the irreversible chemical reaction between lead plate and sulfuric acid electrolyte to realize energy storage. During the cycle, the plate is easy to be sulfided and pulverized, with extremely short service life, and contains a lot of heavy metal lead and corrosive sulfuric acid, which is extremely polluting. While Sodium-ion Battery relies on the reversible intercalation and deintercalation of sodium ions for energy storage, without heavy metal pollution and corrosion risk, and its cycle life is 5-10 times that of lead-acid battery. At the same time, it has multiple advantages such as lighter weight, faster charging, better low temperature performance, higher safety and maintenance-free, which can fully replace the application scenarios of most lead-acid batteries at present.