Making composites of low-dimension oxides and carbons is one of the most effective strategies towards better energy storage materials. Among various carbons, biomass derived carbons with many distinguishing features show great advantages. We report herein a highly ordered mollusc-shell derived 3D carbon networks (MSDCN) for high-performance composite electrode materials. When Ni(OH)₂ is chosen as a conjoined component, the obtained Ni(OH)₂/MSDCN composite exhibits a high specific capacity of 81 mAh g⁻¹ at a high current density of 30 A g⁻¹, and shows no obvious capacity fading during long life cycling at 6 A g⁻¹. Symmetric solid-state energy storage devices based on Ni(OH)₂/MSDCN are also assembled, which demonstrates a high energy density of 10.7 W h kg⁻¹ at a power density of 0.51 KW kg⁻¹ with good cycling stability over 10000 cycles. Red light-emitting diode (LED, 2 V) can be easily lightened by the prepared solid-state devices. Meanwhile, the successful synthesis of Co₃O₄ nanocube/MSDCN and MnO₂ nanowire/MSDCN composites further reveal the high application potential of the MSDCN for high performance energy storage devices.

制备低维氧化物和碳的复合材料是开发更好的储能材料的最有效策略之一。在各种碳中，具有许多显着特征的生物质衍生碳显示出巨大的优势。我们在此报告了用于高性能复合电极材料的高度有序的软体动物壳衍生3D碳网络（MSDCN）。如果Ni（OH）₂被选择为联体部件，所述得到的Ni（OH）₂ / MSDCN复合物表现出的81毫安g的高比容量^-1以30 A g的高电流密度^-1，并显示没有明显的在6 A g ^-1的长寿命循环过程中，容量下降。基于Ni（OH）_2的对称固态储能装置还组装了/ MSDCN，这证明了在功率密度为0.51 KW kg ^-1时具有10.7 W h kg ^-1的高能量密度，并且在10000次循环中具有良好的循环稳定性。使用准备好的固态设备可以轻松点亮红色发光二极管（LED，2 V）。同时，成功地合成了Co ₃ O ₄纳米立方体/ MSDCN和MnO ₂纳米线/ MSDCN复合材料，进一步揭示了MSDCN在高性能储能装置中的巨大应用潜力。