The stable service of lithium-ion electrolyte is important for its application in the wide-temperature region. However, the reversible deposition of lithium at wide temperatures is limited due to the instability of the ion-solvation structure. Herein, adjusting the solvation structure is an effective strategy to solve this problem. With this idea, we use fluorinated solvents to tame stability between solvents and lithium ions. By regulating types of anions, a double-layer structure with low desolvation energy is constructed to improve ion diffusion. Furthermore, an anion-dominated solvation structure can form an inorganic-riched solid electrolyte interface layer to inhibit the decomposition of solvents and high-temperature performance is ensured. As a result, lithium metal batteries using lithium titanate can maintain stability in a wide temperature range of −55 to 60$°C$. In detail, the battery can maintain 70% of room temperature capacity at −35$°C$, while maintaining a capacity retention of 95% after 100 cycles. And its high-temperature performance also guaranteed capacity retention of 92% after 500 cycles at 60$°C$. This work provides a feasible way for electrolytes over a wide temperature range, namely, regulating dual anions to participate in the desolvation process, so that electrolytes can achieve low-temperature performance and high-temperature stability simultaneously.

锂离子电解液的稳定使用对其在宽温区的应用具有重要意义。然而，由于离子溶剂化结构的不稳定性，锂在宽温度下的可逆沉积受到限制。在此，调整溶剂化结构是解决这一问题的有效策略。有了这个想法，我们使用氟化溶剂来控制溶剂和锂离子之间的稳定性。通过调节阴离子的类型，构建具有低去溶剂化能的双层结构以改善离子扩散。此外，阴离子主导的溶剂化结构可以形成富含无机物的固体电解质界面层，抑制溶剂的分解，确保高温性能。因此，$摄氏度$. 详细来说，电池在-35℃时可以保持70%的室温容量$摄氏度$，同时在 100 次循环后保持 95% 的容量保持率。而其高温性能也保证了60℃下500次循环后容量保持率92%$摄氏度$. 该工作为宽温度范围内的电解质提供了一种可行的途径，即调节双阴离子参与去溶剂化过程，从而使电解质同时实现低温性能和高温稳定性。