1分别为200和300个周期，CE为99.3％（图5B和补充表4）。 300个周期后，Co-PCL的容量保留率为87.2％，这是测试的阴极中最高的。还评估了每个M-PCL嵌入的阴极的速率能力（图5C）。 CO-PCL阴极在所有当前密度（即1000、800、600、400、200和100 mA G-1）的排放能力最高（图5C和补充表5）。即使在高电流密度为1000 mA G-1的高电流密度下，CO-PCL阴极的排放量也达到800 mA Hg-1，这远高于原始CNT，Ni-PCL和FE-PCL阴极的放电能力（

原始CNT和M-PCL嵌入阴极在167.5 mA G-1处的表现，E/S比为4.5μlmg-1。 B以167.5 mA G-1为167.5 mA G-1的Fe-PCL和CO-PCL嵌入阴极的B循环性能，E/S比为4.5μlmg-1。 c原始CNT和M-PCL嵌入阴极的速率能力。 D在83.8 mA G-1的CO-PCL嵌入阴极的长期循环性能，E/S比为4.5μlmg-1。分别为5.0 mg cm -2和4.5μlmg -1固定面积的载荷和E/S比。输出：标题：金属电催化剂在金属电催化剂上的构造

mA h g−1 at 200 and 300 cycles, respectively, with a capacity retention ratio of 87.1 and 74.6%. Fe-PCL showed a discharge capacity of 957 and 807 mA h g−1 at 200 and 300 cycles, respectively, with a capacity retention ratio of 91.0 and 76.7%. The CE of Fe-PCL and Co-PCL was maintained at ~100% during the initial 100 cycles and gradually decreased to ~99% at 200 cycles (Fig. 5c). The CE of Fe-PCL and Co-PCL was maintained at ~99% during the initial 100 cycles and gradually decreased to ~99% at 200 cycles (Fig. 5c). The voltage profiles of Fe-PCL and Co-PCL during the initial five cycles at 167.5 mA g−1 are shown in Fig. 5d. The voltage profiles of Fe-PCL and Co-PCL showed two voltage plateaus at ~2.3 and ~2.0 V during the discharge process, which correspond to the reduction of sulfur to soluble LiPS and the subsequent conversion of LiPS to solid-phase Li2S, respectively. During the charge process, two voltage plateaus at ~2.3 and ~2.5 V were observed, which correspond to the oxidation of solid-phase Li2S to LiPS and the subsequent oxidation of LiPS to sulfur, respectively. The voltage gap between the charge and discharge voltage profiles was 0.25 and 0.22 V for Fe-PCL and Co-PCL, respectively, which indicates the lower polarization of Co-PCL than that of Fe-PCL.

MA Hg -1分别为200和300个周期，其容量保留率为87.1和74.6％。 Fe-PCL在200和300个周期分别显示出957和807 MA Hg-1的排放能力为91.0和76.7％。在最初的100个周期中，Fe-PCL和CO-PCL的CE保持在〜100％，并在200个周期时逐渐降至〜99％（图5C）。在最初的100个周期中，Fe-PCL和CO-PCL的CE保持在〜99％，并在200个周期时逐渐降至〜99％（图5C）。在167.5 mA G-1的最初五个周期中，Fe-PCL和Co-PCL的电压轮廓如图5D所示。在放电过程中，Fe-PCL和Co-PCL的电压曲线在〜2.3和〜2.0 V时显示了两个电压，这对应于将硫的减少到可溶性嘴唇的减少以及随后将Lips转化为固相LI2的转化。在充电过程中，观察到〜2.3和〜2.5 V时的两个电压高原，这对应于固相LI2S向LIPS的氧化以及随后将LIPS氧化与硫的氧化。对于Fe-PCL和COPCL，电荷和放电电压曲线之间的电压间隙分别为0.25和0.22 V，这表明CO-PCL的极化低于FE-PCL。

Coin-cell performance of pristine CNT, Ni-PCL, Fe-PCL, and Co-PCL. a Discharge capacity and b capacity retention ratio of pristine CNT, Ni-PCL, Fe-PCL, and Co-PCL at 167.5 mA g−1 with an E/S ratio of 4.5 μL mg-1. c Coulombic efficiency of pristine CNT, Ni-PCL, Fe-PCL, and Co-PCL at 167.5 mA g−1 with an E/S ratio of 4.5 μL mg-1. d Voltage profiles of Fe-PCL and Co-PCL during the initial five cycles at 167.5 mA g−1 with an E/S ratio of 4.5 μL mg-1.output

原始CNT，Ni-PCL，FE-PCL和Co-PCL的硬币性能。原始CNT，Ni-PCL，FE-PCL和CO-PCL的排放能力和B容量的保留率为167.5 mA G-1，E/S比为4.5μlmg-1。 c原始CNT，Ni-PCL，Fe-PCL和CO-PCL的库仑效率为167.5 mA G-1，E/S比为4.5μlmg-1。 Fe-PCL和Co-PCL的D电压轮廓在最初的五个周期中以167.5 mA G-1为4.5μlmg-1。