Abstract
Dual-ion batteries (DIBs) usually use carbon-based materials as electrodes, showing advantages in high operating voltage, potential low cost, and environmental friendliness. Different from conventional “rocking chair” type secondary batteries, DIBs perform a unique working mechanism, which employ both cation and anion taking part in capacity contribution at an anode and a cathode, respectively, during electrochemical reactions. Graphite has been identified as a suitable cathode material for anion intercalation at high voltages (> 4.8 V) with fast reaction kinetics. However, the development of DIBs is being hindered by dynamic mismatch between a cathode and an anode due to sluggish Li+ diffusion at a high rate. Herein, we prepared phyllostachys edulis derived carbon (PEC) through microstructure regulation strategy and investigated the carbonized temperature effect, which effectively tailored the rich short-range ordered graphite microdomains and disordered amorphous regions, as well as a unique nano-pore hierarchical structure. The pore size distribution of nano-pores was concentrated in 0.5–5 nm, providing suitable channels for rapid Li+ transportation. It was found that PEC-500 (carbonized at 500 °C) achieved a high capacity of 436 mAh·g–1 at 300 mA·g–1 and excellent rate performance (maintaining a high capacity of 231 mAh·g–1 at 3 A·g–1). The assembled dual-carbon PEC-500||graphite full battery delivered 114 mAh·g–1 at 10 C with 96% capacity retention after 3000 cycles and outstanding rate capability, providing 74 mAh·g–1 at 50 C.
Graphical Abstract
Keywords
Dual-ion battery, Biomass hard carbon, Structural regulation, High operating voltage, High rate
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Publication Date
2025-08-28
Online Available Date
2025-06-16
Revised Date
2025-06-08
Received Date
2025-04-30
Recommended Citation
Rui Zhou, Rui Liu, Yun-Nuo Li, Si-Jie Jiang, Tian-Tian Jing, Yan-Song Xu, Fei-Fei Cao.
Structure Regulation Engineering for Biomass-Derived Carbon Anodes Enabling High-Rate Dual-Ion Batteries[J]. Journal of Electrochemistry,
2025
,
31(8): 2515004.
DOI: 10.61558/2993-074X.3569
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol31/iss8/3
Structure Regulation Engineering for Biomass-Derived Carbon Anodes Enabling High-Rate Dual-Ion Batteries -Supporting Information