As a green and sustainable porous material, wood has attracted more and more attention of researchers, especially in the field of energy storage. However, the poor conductivity of wood limits its application. Herein, a kind of non-carbonized lignin-free wood (LFW)@PANI supercapacitor material is fabricated for renewable energy storage application. The resultant hybrid used as electrode material of supercapacitor shows a good comprehensive electrochemical performance: 1) A high cycle stability of ~96% after experiencing 5000 cycles. 2) A high specific capacitance of ~800 F g⁻¹ and 192 F cm⁻³ 3) Good rate performance. 4) A high energy efficiency of more than 80%. 5) High energy densities of 41 Wh kg⁻¹ (57 Wh L⁻¹), meanwhile maintaining high power densities of 43 kW L⁻¹ (68 kW kg⁻¹). Compared with the way of carbonization, non-carbonized treatment not only save energy but also be greener. This work is expected to provide more insights and possibilities for application of renewable wood-based materials.

木材作为一种绿色且可持续的多孔材料，已经引起了越来越多研究人员的关注，尤其是在储能领域。但是，木材导电性差，限制了其应用。在此，制备了一种非碳化的无木质素木质（LFW）@PANI超级电容器材料，用于可再生能源存储应用。所得的用作超级电容器电极材料的混合材料表现出良好的综合电化学性能：1）经过5000次循环后，循环稳定性高达〜96％。2）〜800 F g ^-1和192 F cm ^-3的高比电容3）良好的倍率性能。4）超过80％的高能源效率。5）41 Wh kg ^-1（57 Wh L ^-1的高能量密度），同时保持43 kW L ^-1（68 kW kg ^-1）的高功率密度。与碳化方式相比，非碳化处理不仅节省能源，而且更绿色。预期这项工作将为可再生木基材料的应用提供更多的见识和可能性。