Higher energy storage in the limited space of lithium batteries always brings more safety hazards. To address this issue, the utilization of solid electrolyte to replace the liquid one is a promising strategy. However, the sluggish charge transfer and poor interfacial compatibility between solid electrodes and solid electrolyte severely hinder the performance of high-energy-density solid-state lithium batteries. Thus, in this Perspective, the bottlenecks and the related solutions regarding organic/inorganic composite electrolyte, lithium-metal anode, and high-voltage cathode are focused on, and compatible interface engineering is presented. Aiming at the commercialization of high-energy-density solid-state lithium-metal batteries, possible strategies on tackling the remaining challenges of manufacturing scale are also highlighted.

锂电池有限空间中的更高能量存储总是带来更多的安全隐患。为了解决这个问题，利用固体电解质代替液体电解质是一种有前途的策略。然而，缓慢的电荷转移和固体电极与固体电解质之间的不良界面相容性严重阻碍了高能量密度的固态锂电池的性能。因此，在本“观点”中，着眼于有机/无机复合电解质，锂金属阳极和高压阴极的瓶颈及相关解决方案，并提出了兼容的接口工程。针对高能量密度固态锂金属电池的商业化，还强调了应对制造规模剩余挑战的可能策略。