10th Anniversary of Batteries—Silicon Anodes for Next-Generation Batteries: Materials, Design Strategies, Performance, and Future Directions

A special issue of Batteries (ISSN 2313-0105). This special issue belongs to the section "Electrode Materials and Advanced Characterization".

Deadline for manuscript submissions: closed (31 July 2026) | Viewed by 2074

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Guest Editor
Battery Science Branch, DEVCOM Army Research Laboratory, Adelphi, MD 20783-1138, USA
Interests: energy storage; battery; capacitor
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Special Issue Information

Dear Colleagues,

We are pleased to announce a Special Issue of Batteries in celebration of its 10th anniversary, dedicated to advancements in silicon anodes for next-generation batteries. Silicon-based anodes are among the most promising materials for high-energy lithium-ion batteries, but challenges remain in their practical implementation. This Special Issue aims to highlight recent progress, innovative approaches, and future directions in silicon anode research.

Topics of interest include, but are not limited to, the following research areas:

  • Silicon anode material design: Novel silicon-based materials, composites, and structural modifications for enhanced performance.
  • Electrochemical performance and degradation mechanisms: Understanding capacity fading, cycling stability, and failure modes in silicon anodes.
  • Binder and electrolyte innovations: Development of functional binders and electrolyte formulations to improve silicon anode performance.
  • Silicon suboxide and silicon–carbon composites: Advances in silicon suboxide materials and hybrid electrode strategies.
  • Scalability and manufacturing challenges: Processing techniques, cost reduction, and industrial feasibility of silicon-based anodes.
  • Next-generation battery systems: Silicon anodes in emerging battery chemistries, including solid-state batteries.

Dr. Sheng S. Zhang
Guest Editor

Manuscript Submission Information

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Keywords

  • silicon anode
  • silicon suboxide
  • silicon–carbon composite
  • electrode engineering
  • solid-state battery
  • next-generation battery

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Published Papers (1 paper)

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Research

14 pages, 2882 KB  
Article
Single-Walled Carbon Nanotube Templated Three-Dimensional Porous Si/SiO2 Core–Shell Cylindrical Hybrid Anode Material for Lithium-Ion Batteries
by SeYi Kwon and Jun-Ki Lee
Batteries 2026, 12(6), 220; https://doi.org/10.3390/batteries12060220 - 18 Jun 2026
Viewed by 1254
Abstract
Silicon (Si) is a leading anode candidate for next-generation lithium-ion batteries owing to its high theoretical capacity (~4200 mAh/g), but its >300% volumetric expansion during lithiation causes particle pulverization, loss of electrical contact, and continuous solid electrolyte interphase (SEI) reformation, resulting in rapid [...] Read more.
Silicon (Si) is a leading anode candidate for next-generation lithium-ion batteries owing to its high theoretical capacity (~4200 mAh/g), but its >300% volumetric expansion during lithiation causes particle pulverization, loss of electrical contact, and continuous solid electrolyte interphase (SEI) reformation, resulting in rapid capacity fade. Here, we report a single-walled carbon nanotube (SWNT)-templated porous Si/SiO2 core–shell cylindrical hybrid anode synthesized by combining block copolymer-directed sol–gel assembly with controlled magnesiothermic reduction. SWNT bundles act as a three-dimensional structural template that directs the formation of a continuously interconnected cylindrical porous network, a geometry difficult to obtain by conventional particle-based compositing. The controlled, partial magnesiothermic reduction intentionally preserves residual amorphous SiO2 within the porous shell as an electrochemically inactive mechanical buffer that suppresses Si volume expansion and stabilizes the electrode. A side-by-side comparison with a fully reduced, SiO2-free counterpart of identical architecture isolates the role of the SiO2 buffer in achieving long-term cycling stability. The SWNT-porous Si/SiO2 hybrid delivers a reversible capacity of 1133 mAh/g in the first cycle and retains 90% of its initial capacity after 200 cycles at 1 C with 99.7% Coulombic efficiency, together with a rate capability of 482 mAh/g at 5 C. Post-cycling cross-sectional analysis confirms minimal electrode-level swelling (~2 μm) after 200 cycles, demonstrating the structural efficacy of the SWNT-templated porous architecture combined with the SiO2 buffer for structurally stable Si anodes. Full article
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