钠离子电池有没有记忆效应？

Is Sodium-ion Battery a solid-state battery?    

主流商用钠离子电池几乎完全没有记忆效应，使用特性与锂电池一致，使用便捷性远超传统镍氢电池、镍镉电池。所谓电池记忆效应，是指电池长期浅充浅放、未完全放空电量时，会自动记忆放电边界，导致可用容量持续衰减、续航缩水。而钠离子电池不存在该问题，日常使用中可随时充电、随时补电，无需刻意放空剩余电量，也无需定期深度放电校准容量，无论浅充浅放、满充满放，都不会造成电池容量损耗，日常使用灵活便捷，适配日常民用、工业储能的各类使用习惯。

At present, all large-scale commercial Sodium-ion Batteries are liquid electrolyte batteries, not solid-state batteries. The current mass-produced sodium batteries adopt the traditional structure of liquid electrolyte + microporous separator, with mature technology, low cost, stable performance, and suitable for large-scale industrialization. Solid-state Sodium-ion Battery is the next generation of cutting-edge technology, which uses solid electrolyte to replace the traditional liquid electrolyte, completely solving the safety hazards such as leakage, thermal runaway and short circuit, and has higher energy density and safety. At present, solid-state sodium battery is still in the stage of laboratory research and development and pilot iteration, the technology is not yet fully mature, the production cost is extremely high, and it has not yet achieved large-scale mass production and commercial use, which is the core direction of future sodium battery technology upgrading.