Electron Density Engineering at the Bond Critical Points in Solvation Sheath of Sodium Ions for High‐Rate Hard Carbon in Ether‐Based Electrolyte DOI Open Access
Wannian Zhang, Ying Luo, Xingyu Li

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Abstract Rationally designing the electrolyte system toward improving electrochemical performance, especially rate capability, of sodium ion batteries (SIBs) is very important for accelerating their large‐scale commercialization. Herein, it shown that by refining molar ratio two ether solvents, namely dimethoxyethane (DME) and 2‐methyl tetrahydrofuran (MeTHF), a binary solvent forms solvation structure facilitates high charge/discharge hard carbon (HC) electrodes. It demonstrated boosted capability can be attributed to enhanced transportation desolvation kinetics, resulting from participation weak‐coordinating MeTHF molecule with low steric hindrance in sheath, which weakens interaction between molecules/anions through electron density regulation at bond critical points (BCPs). The thin uniform solid interphase film on HC electrodes formed such an ether‐based also beneficial performance cycling stability. results present study shed more light how engineering BCPs sheath affects promote its practical application prospect future sodium‐based battery chemistries.

Language: Английский

Creating rich closed nanopores in anthracite-derived soft carbon enables greatly-enhanced sodium-ion storage in the low-working-voltage region DOI

Jiawei Gu,

Yiwei You,

Miao Liu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159331 - 159331

Published: Jan. 6, 2025

Language: Английский

Citations

4

Mildly-catalytic mediation of pseudographitic domain to boost hard carbon toward advanced sodium storage DOI
Yueying Li, Zhidong Hou, Xiang Zhang

et al.

Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120022 - 120022

Published: Jan. 1, 2025

Language: Английский

Citations

2

Deep oxygen-crosslinking and self-coating synergetic engineering on pitch-based hard carbon anode for sodium-ion batteries DOI
Ke Xiao,

Peiyao Wang,

Jin Bai

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

2

Lignin derived hard carbon for sodium ion batteries: Recent advances and future perspectives DOI
Ao Wang, Gaoyue Zhang, Meng Li

et al.

Progress in Materials Science, Journal Year: 2025, Volume and Issue: unknown, P. 101452 - 101452

Published: Feb. 1, 2025

Language: Английский

Citations

2

Hyper‐Crosslinking to Customize Ultrathin‐Wall Closed Pores in Pitch‐Derived Carbon for Sodium‐Ion Batteries DOI

Nan Lan,

Jingyi Li, Li Zeng

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

Abstract Pitch is a highly preferable and cost‐effective precursor of carbon materials. Nevertheless, its direct pyrolysis typically yields graphitized soft carbon, posing challenges to the modulation closed‐pore architecture, due intense intermolecular π–π interactions. This results in negligible plateau capacity sluggish diffusion kinetics sodium‐ion batteries (SIBs). In this study, an innovative hyper‐crosslinking strategy proposed reconstruct pitch molecularly precisely tailor structure derived carbon. The crosslinker intertwined units, transforming linear molecules into 3D porous polymers. Structurally, these cavities tactfully reserved space for forming cores, with single‐layer network skeleton ultrathin pore walls upon carbonization. enabled disruption interactions and, therefore, inhibited structural ordering, facilitating transition from graphitic highly‐disordered abundant closed pores featuring appropriate sizes (2 nm) (1–2 layers). optimal sample delivered high 370 mAh g −1 at 30 mA , as well rate capability that surpassed those most previously reported pitch‐derived carbons. Hyper‐crosslinking has advanced development low‐cost high‐performance materials large‐scale energy storage.

Language: Английский

Citations

2

Structural design of biomass-derived hard carbon anode materials for superior sodium storage via increasing crystalline cellulose and closing the open pores DOI
Xiaoying Li, Sijing Zhang,

Jingjing Tang

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(32), P. 21176 - 21189

Published: Jan. 1, 2024

Through the two-step acid treatment and two-stage heat method proposed in this study, properties of almond shells were efficiently modulated transformed into hard carbon materials rich closed pores oxygen-containing groups.

Language: Английский

Citations

11

Precise control of the resin-based hard carbon pseudo graphite and closed pores structure to enhance sodium storage capacity DOI
Yiduo Liu,

Shuai Dai,

Jianghong Deng

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 686, P. 136 - 150

Published: Jan. 29, 2025

Language: Английский

Citations

1

Biomass-Derived Hard Carbon Materials for High-Performance Sodium-Ion Battery DOI Open Access
Yixing Chen,

Jiaming Cui,

Sheng Wang

et al.

Coatings, Journal Year: 2025, Volume and Issue: 15(2), P. 156 - 156

Published: Feb. 1, 2025

Using biomass-derived hard carbon materials as anode for sodium-ion batteries has facilitated resource recycling and brought significant economic benefits. However, the main obstacles to large-scale application of these are low Coulombic efficiency high irreversible capacity materials. This study used waste moso bamboo a source prepare pre-oxidize through stepped temperature sintering process. The introduction oxygen atoms into layers been shown increase spacing between layers, which facilitates insertion sodium-ions them. Moreover, presence oxygen-containing groups increases number edge vacancy defects in skeleton, thereby enhancing actual material. Studies have indicated that different pre-oxidation times varying impacts on electrochemical properties discarded raw material, optimal duration bamboo-based was determined be 4.5 h series comparative experiments. A high-performance material prepared via stepwise It exhibited specific 301.4 mAh·g−1 at 0.1 C first-cycle 87%.

Language: Английский

Citations

1

Pre-construction Gas Nanochamber Strategy: Producing Hard Carbon Rich in Closed Pores and sp2-C for Sodium-ion Batteries DOI
Yong Qian, Yuxiao Lin, Jinwei Tian

et al.

Energy storage materials, Journal Year: 2025, Volume and Issue: 75, P. 104092 - 104092

Published: Feb. 1, 2025

Language: Английский

Citations

1

Dynamic Sodiation‐Driven Pore Reconstruction for Superior Initial‐Coulombic‐Efficiency and High‐Rate in Xylose‐Based Hard Carbon Anode DOI

Runyi Zhou,

Siyuan Peng, Zhi Wang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Abstract The trade‐off between initial coulombic efficiency (ICE) and rate performance of hard carbon anodes remains a challenge in their practical applications, which is highly related to complex active surface porous properties. In this work, high‐performance anode prepared using xylose as the source with Co 2+ ‐assisted catalysis, exhibits an excellent 91.6%, high capacity 396.4 mA h g −1 , superior (176.3 at 5 A ), outstanding cycling stability. Cobalt‐ion treatment forms “expanded” graphite segments, facilitating intercalation desolvated sodium ions. Additionally, intersection these segments creates “nanocaves”, enabling rapid sodium‐ion transport stage. Using combination atomic‐resolution structural characterization three‐dimensional electron tomography via transmission microscopy, it observed that initially isolated nanoporous holes collapsed into interconnected pancake‐like pores during later cycling. reconstructed narrow but connected pore structure provides abundant storage sites charge transfer pathways, effectively accommodating stress This work presents innovative strategy for designing commercial advanced architectures also new insight evolution

Language: Английский

Citations

1