 This study has demonstrated the use of renewable piths from sorghum stocks as a material for potassium ion batteries. The material was found to have excellent performance with a high reversible capacity of 304.6 mAh G1 at 0.1 AG, 1 after 100 cycles and a stable cycling performance of 189.5 mAh G1 at 1 AG, 1 after 50 cycles. Additionally, the material can be produced on a large scale in a short time frame, making it ideal for commercial applications. This article was authored by Rong Chaochui, Bo Su, Ho Ji Dong, and others.