Rechargeable batteries based on an anion shuttle, for example, chloride or fluoride battery that operates at room temperature, have recently been gaining increasing attention as potential future power sources. Here we demonstrate, for the first time, the utilization of antimony oxychloride (Sb₄O₅Cl₂) as a new cathode material for non-aqueous chloride ion batteries. We show that Sb₄O₅Cl₂ microstructures uniformly embedded in a graphene aerogel matrix (Sb₄O₅Cl₂/graphene aerogel), resulting in completely interconnecting structures, exhibit enhanced electrochemical performance as cathode material for non-aqueous chloride ion battery. The electrode delivers a stable capacity of ∼100 mAh g⁻¹ for initial 25 cycles that could retain a specific discharge capacity of ∼65 mAh g⁻¹ after 100 cycles which makes it one of the promising cathode materials with long cycle life for chloride ion batteries, when cycled against lithium. We employ various ex-situ measurements to unveil the electrochemical reaction mechanism.

基于阴离子穿梭的可再充电电池，例如在室温下运行的氯化物或氟化物电池，最近作为潜在的未来电源越来越受到关注。在这里，我们首次证明了将氯氧化锑（Sb ₄ O ₅ Cl ₂）用作非水氯化物离子电池的新型正极材料。我们显示Sb ₄ O ₅ Cl ₂微观结构均匀地嵌入石墨烯气凝胶基质（Sb ₄ O ₅ Cl ₂/石墨烯气凝胶）作为完全非互连的结构，显示出增强的电化学性能，作为非水氯化物离子电池的正极材料。电极在最初的25个循环中可提供约100 mAh g ^-1的稳定容量，在100个循环后可保持约65 mAh g ^-1的比放电容量，这使其成为氯离子循环寿命长的有希望的阴极材料之一电池对锂循环时。我们采用各种异位测量来揭示电化学反应机理。