@article{ART003387352},
author={Park Jung-Hyeok and Kim Byeong Guk and Shin Jungdong and Hyun Jae Ik and Jeong Seung Yol and Lee, Je In and Yang Sunhye and Nam Ki-Hun},
title={Stabilizing silicon anodes via high-entropy alloying and hierarchical carbon encapsulation for high-performance lithium-ion batteries},
journal={Carbon Letters},
issn={1976-4251},
year={2026},
volume={36},
number={3},
pages={1265-1277},
doi={10.1007/s42823-026-01059-w}
TY - JOUR
AU - Park Jung-Hyeok
AU - Kim Byeong Guk
AU - Shin Jungdong
AU - Hyun Jae Ik
AU - Jeong Seung Yol
AU - Lee, Je In
AU - Yang Sunhye
AU - Nam Ki-Hun
TI - Stabilizing silicon anodes via high-entropy alloying and hierarchical carbon encapsulation for high-performance lithium-ion batteries
JO - Carbon Letters
PY - 2026
VL - 36
IS - 3
PB - Korean Carbon Society
SP - 1265
EP - 1277
SN - 1976-4251
AB - Silicon (Si) is widely regarded as a highly attractive anode material for lithium-ion batteries (LIBs) because of its intrinsically high theoretical capacity; however, its practical implementation is severely hindered by large volume changes, mechanical instability, and limited charge-transport efficiency during repeated cycling. Alloying Si with metallic elements has been investigated as an effective strategy to mitigate these issues, yet conventional low-complexity alloys often fail to provide sufficient long-term stability. In this work, we introduce a high-entropy Si alloy (HESiA) anode concept based on equiatomic multi-element alloying, designed to fundamentally regulate Si lithiation behavior. The HESiA, consisting of multiple metallic elements homogeneously incorporated into a Si-rich matrix, is synthesized via a mechanical alloying process. Compared with single-element Si alloys, the high-entropy architecture enables more uniform stress distribution and improved electrochemical durability. To further enhance electronic connectivity and mechanical robustness, the HESiA is integrated with a hybrid reduced graphene oxide/carbon nanotube (rGO/CNT) conductive framework through a spray-drying process, forming a conformal carbon-encapsulated composite. Furthermore, graphite–HESiA composite electrodes demonstrate enhanced capacity utilization, improved rate performance, and stable cycling behavior compared with pristine graphite electrodes, while preserving structural integrity under high-rate operation. These results highlight that high-entropy alloying, combined with hierarchical carbon encapsulation, provides a versatile and potentially scalable materials-design strategy for overcoming the long-standing capacity–stability trade-off of Si anodes, offering a viable pathway toward next-generation high-energy-density LIBs.
KW - Li-ion batteries Silicon anode Silicon alloy High-entropy Anode Si/graphite anode
DO - 10.1007/s42823-026-01059-w
ER -
Park Jung-Hyeok, Kim Byeong Guk, Shin Jungdong, Hyun Jae Ik, Jeong Seung Yol, Lee, Je In, Yang Sunhye and Nam Ki-Hun. (2026). Stabilizing silicon anodes via high-entropy alloying and hierarchical carbon encapsulation for high-performance lithium-ion batteries. Carbon Letters, 36(3), 1265-1277.
Park Jung-Hyeok, Kim Byeong Guk, Shin Jungdong, Hyun Jae Ik, Jeong Seung Yol, Lee, Je In, Yang Sunhye and Nam Ki-Hun. 2026, "Stabilizing silicon anodes via high-entropy alloying and hierarchical carbon encapsulation for high-performance lithium-ion batteries", Carbon Letters, vol.36, no.3 pp.1265-1277. Available from: doi:10.1007/s42823-026-01059-w
Park Jung-Hyeok, Kim Byeong Guk, Shin Jungdong, Hyun Jae Ik, Jeong Seung Yol, Lee, Je In, Yang Sunhye, Nam Ki-Hun "Stabilizing silicon anodes via high-entropy alloying and hierarchical carbon encapsulation for high-performance lithium-ion batteries" Carbon Letters 36.3 pp.1265-1277 (2026) : 1265.
Park Jung-Hyeok, Kim Byeong Guk, Shin Jungdong, Hyun Jae Ik, Jeong Seung Yol, Lee, Je In, Yang Sunhye, Nam Ki-Hun. Stabilizing silicon anodes via high-entropy alloying and hierarchical carbon encapsulation for high-performance lithium-ion batteries. 2026; 36(3), 1265-1277. Available from: doi:10.1007/s42823-026-01059-w
Park Jung-Hyeok, Kim Byeong Guk, Shin Jungdong, Hyun Jae Ik, Jeong Seung Yol, Lee, Je In, Yang Sunhye and Nam Ki-Hun. "Stabilizing silicon anodes via high-entropy alloying and hierarchical carbon encapsulation for high-performance lithium-ion batteries" Carbon Letters 36, no.3 (2026) : 1265-1277.doi: 10.1007/s42823-026-01059-w
Park Jung-Hyeok; Kim Byeong Guk; Shin Jungdong; Hyun Jae Ik; Jeong Seung Yol; Lee, Je In; Yang Sunhye; Nam Ki-Hun. Stabilizing silicon anodes via high-entropy alloying and hierarchical carbon encapsulation for high-performance lithium-ion batteries. Carbon Letters, 36(3), 1265-1277. doi: 10.1007/s42823-026-01059-w
Park Jung-Hyeok; Kim Byeong Guk; Shin Jungdong; Hyun Jae Ik; Jeong Seung Yol; Lee, Je In; Yang Sunhye; Nam Ki-Hun. Stabilizing silicon anodes via high-entropy alloying and hierarchical carbon encapsulation for high-performance lithium-ion batteries. Carbon Letters. 2026; 36(3) 1265-1277. doi: 10.1007/s42823-026-01059-w
Park Jung-Hyeok, Kim Byeong Guk, Shin Jungdong, Hyun Jae Ik, Jeong Seung Yol, Lee, Je In, Yang Sunhye, Nam Ki-Hun. Stabilizing silicon anodes via high-entropy alloying and hierarchical carbon encapsulation for high-performance lithium-ion batteries. 2026; 36(3), 1265-1277. Available from: doi:10.1007/s42823-026-01059-w
Park Jung-Hyeok, Kim Byeong Guk, Shin Jungdong, Hyun Jae Ik, Jeong Seung Yol, Lee, Je In, Yang Sunhye and Nam Ki-Hun. "Stabilizing silicon anodes via high-entropy alloying and hierarchical carbon encapsulation for high-performance lithium-ion batteries" Carbon Letters 36, no.3 (2026) : 1265-1277.doi: 10.1007/s42823-026-01059-w
2,
Yang Sunhye
1,
Nam Ki-Hun
1