All-solid-state lithium batteries based on multiple electron reaction cathode can exhibit high reversible specific capacity, and thus realizing high energy density. Improving electronic/ionic conductivities and alleviating volume changes are of great significance for achieving high performance all-solid-state batteries. In this work, amorphous MoS₅ nanoparticles are homogeneously anchored on the surface of graphene nanosheets by a hydrothermal method, thereby improving electronic conductivity and reducing volume changes of active material. Then, Li₇P₃S₁₁ nanoparticles are coated on MoS₅@10 %graphene via an in situ liquid-phase method, resulting in intimate interface contact between active material and electrolyte. The resultant all-solid-state lithium batteries based on MoS₅@10 %graphene-15 %Li₇P₃S₁₁ nanocomposite cathodes exhibit a high initial discharge capacity of 1030.1 mAh/g at 0.1 A/g and a reversible specific capacity of 570.7 mAh/g at 0.5 A/g after 500 cycles. Moreover, the obtained all-solid-state lithium battery using MoS₅@10 %graphene-15 %Li₇P₃S₁₁ cathode displays a high energy density of 493.0 Wh kg⁻¹ at 0.1 A/g and a high power density of 470.3 W kg⁻¹ at 1.0 A/g based on the total mass of cathode layer. The unique structure endows excellent electronic/ionic conductivities of active material and intimate interface contact in the cathode layer, enabling a stable all-solid-state lithium battery with good cycling stability and high energy density.

基于多电子反应正极的全固态锂电池可以表现出高可逆比容量，从而实现高能量密度。提高电子/离子电导率、减轻体积变化对于实现高性能全固态电池具有重要意义。在这项工作中，通过水热方法将无定形MoS ₅纳米粒子均匀锚定在石墨烯纳米片的表面，从而提高电子电导率并减少活性材料的体积变化。然后，Li ₇ P ₃ S _{11纳米粒子}通过原位涂覆在MoS ₅ @10%石墨烯上液相方法，导致活性材料和电解质之间的紧密界面接触。所得基于MoS ₅ @10%石墨烯-15%Li ₇ P ₃ S ₁₁纳米复合正极的全固态锂电池在0.1 A/g下表现出1030.1 mAh/g的高初始放电容量和可逆比容量500 次循环后，0.5 A/g 时为 570.7 mAh/g。_{此外，使用MoS 5} @10%石墨烯-15%Li ₇ P ₃ S ₁₁正极获得的全固态锂电池在0.1 A/g下表现出493.0 Wh kg ^-1的高能量密度和470.3 瓦·千克⁻¹基于阴极层的总质量为1.0A/g。独特的结构赋予活性材料优异的电子/离子电导率和正极层紧密的界面接触，使全固态锂电池具有良好的循环稳定性和高能量密度。