• Nanocapsules made from metal–organic frameworks were designed for sustained release of additive (LiNO₃) to passivate Li anode in commercial carbonate-based electrolyte.

• The nanocapsules with continuous supply of LiNO₃ formed a nitride-rich solid electrolyte interphase layer on Li anode and persistently remedied the interphase during prolonged cycling.

• The practical Li-metal full cell delivered a prolonged lifespan with 90% capacity retention after 240 cycles which has been hardly achieved in commercial electrolyte.

中文翻译：

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持续释放的纳米胶囊使实用的锂金属电池能够长期稳定锂阳极

• 由金属-有机骨架制成的纳米胶囊旨在持续释放添加剂（LiNO ₃），以钝化市售基于碳酸盐的电解质中的锂阳极。

• 连续供应LiNO ₃的纳米胶囊在Li阳极上形成了富氮化物的固态电解质中间相层，并在延长的循环过程中持续地修复了中间相。

• 实用的锂金属全电池在240次循环后具有90％的容量保持率，延长了使用寿命，这在商用电解质中很难实现。