Despite their potential as post lithium-ion batteries, solid-state Li-metal batteries are struggling with insufficient electrochemical sustainability and ambient operation limitations. These challenges mainly stem from lack of reliable solid-state electrolytes. Here, a new class of single-ion conducting quasi-solid-state soft electrolyte (SICSE) for practical semi-solid Li-metal batteries (SSLMBs) is demonstrated. The SICSE consists of an ion-rectifying compliant skeleton and a nonflammable coordinated electrolyte. Rheology-tuned SICSE pastes, in combination with UV curing-assisted multistage printing, allow fabrication of seamlessly integrated SSLMBs (composed of a Li metal anode and LiNi_0.8Co_0.1Mn_0.1 cathode) without undergoing high-pressure/high-temperature manufacturing steps. The single-ion conducting capability of the SICSE plays a viable role in stabilizing the interfaces with the electrodes. The resulting SSLMB full cell exhibits stable cycling performance and bipolar configurations with tunable voltages and high gravimetric/volumetric energy densities (476 Wh kg_cell⁻¹/1102 Wh L_cell⁻¹ at four-stacked cells with 16.656 V) under ambient operating conditions, along with low-temperature performance, mechanical foldability, and nonflammability.

中文翻译：

---

用于半固态锂金属电池的单离子导电软电解质使电池能够在环境条件下制造和运行

尽管具有作为后锂离子电池的潜力，固态锂金属电池仍面临电化学可持续性不足和环境操作限制的问题。这些挑战主要源于缺乏可靠的固态电解质。在这里，展示了一种用于实用半固态锂金属电池（SSLMB）的新型单离子导电准固态软电解质（SICSE）。SiCSE 由离子整流兼容骨架和不可燃的配位电解质组成。流变学调整的 SICSE 糊剂与紫外线固化辅助多级印刷相结合，可以制造无缝集成的 SSLMB（由锂金属阳极和 LiNi _0.8 Co _0.1 Mn _0.1阴极）而不经过高压/高温制造步骤。SICSE 的单离子导电能力在稳定与电极的界面方面起着可行的作用。由此产生的 SSLMB 全电池在环境操作条件下表现出稳定的循环性能和双极配置，具有可调电压和高重量/体积能量密度（476 Wh kg_电池^-1 /1102 Wh L_电池^-1在 16.656 V 的四叠电池中），以及低温性能、机械可折叠性和不可燃性。