The inherent structural alignment of Chinese fir scraps utilized in energy storage applications is intriguing. To enhance performance and achieve a symmetrical supercapacitor configuration, nano-pores have been introduced into the carbonized Chinese fir slice, while carbon nanotubes have been synthesized on the tracheid walls to increase its specific surface area. However, achieving high energy density and cycle stability in electrodes remains a significant challenge. Here, the challenge is addressed by synthesizing aligned carbon nanotubes thr...