A Uniform Self‐Reinforced Organic/Inorganic Hybrid SEI Chelation Strategy on Microscale Silicon Surfaces for Stable‐Cycling Anodes in Lithium‐Ion Batteries DOI
Xin Li, Mohammad Tabish,

Wenping Zhu

и другие.

Small, Год журнала: 2023, Номер 19(41)

Опубликована: Июнь 13, 2023

Abstract A promising anode material for Li‐ion batteries, silicon (Si) suffers from volume expansion‐induced pulverization and solid electrolyte interface (SEI) instability. Microscale Si with high tap density initial Coulombic efficiency (ICE) has become a more anticipated choice, but it will exacerbate the above issues. In this work, polymer polyhedral oligomeric silsesquioxane‐lithium bis (allylmalonato) borate (PSLB) is constructed by in situ chelation on microscale surfaces via click chemistry. This polymerized nanolayer an “organic/inorganic hybrid flexible cross‐linking” structure that can accommodate change of Si. Under stable framework formed PSLB, large number oxide anions chain segment preferentially adsorb LiPF 6 further induce integration inorganic‐rich, dense SEI, which improves mechanical stability SEI provides accelerated kinetics Li + transfer. Therefore, Si4@PSLB exhibits significantly enhanced long‐cycle performance. After 300 cycles at 1 g −1 , still provide specific capacity 1083 mAh . Cathode‐coupled LiNi 0.9 Co 0.05 Mn O 2 (NCM90) full cell retains 80.8% its after 150 0.5 C.

Язык: Английский

The Fischer‐lactonization‐driven mechanism for ultra‐efficient recycling of spent lithium‐ion batteries DOI
Miaomiao Zhou,

Ji Shen,

Yinze Zuo

и другие.

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Окт. 12, 2024

Hydrometallurgy remains a major challenge to simplify its complex separation and precipitation processes for spent lithium-ion batteries (LIBs). Herein, we propose Fischer-lactonization-driven mechanism the cascade reaction of leaching chelation LIBs. Citric acid undergoes two-step dissociation carboxylic (-COOH) complexes with leached metal ion, while residual -COOH is attacked by H protons form protonated carboxyl ion (-COO -). Subsequently, lone pair electrons in hydroxyl same molecule attack carbon atom -COO - facilitate ester bonding, leading formation lactonized gel. The rates Li, Ni, Co Mn are 99.3, 99.1, 99.5 99.2 %, respectively. regenerated monocrystalline LiNi

Язык: Английский

Процитировано

10
Performance optimization of zinc-air batteries via nanomaterials DOI
Pengfei Zhang, Manhui Wei, Keliang Wang

и другие.

Energy storage materials, Год журнала: 2025, Номер 75, С. 104109 - 104109

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

2
Sustainable recovery of spent ternary cathode materials via wasted asphalt pyrolysis in closed-loop recycling DOI

Hui Tong,

Zhiyuan Liu, Yi Li

и другие.

Sustainable materials and technologies, Год журнала: 2025, Номер unknown, С. e01343 - e01343

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

2
Closed‐Loop Recycling Methods to Treat Spent Cathode: Efficient and Direct Regeneration DOI
Zhe Gao, Yang Liu, Zeinhom M. El‐Bahy

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Abstract Direct regeneration of spent lithium batteries (LIBs) cathodes has emerged as a transformative regimen to address the urgent need for sustainable recycling methods and mitigate critical shortage metal resources driven by escalating LIB demand. Unlike conventional focused on extraction separation, direct restores functionality cathode in situ, streamlining process enhancing efficiency. Effective necessitates comprehensive understanding failure mechanisms pretreatment processes. Critical strategies include reducing (Li) migration barrier enable complete reinsertion into structure minimizing Li‐transition anti‐site defects reconstruct lattice. This review summarizes advancements mechanisms, techniques, cathode, emphasizing principles innovations regeneration. By evaluating advantages limitations current approaches, opportunities are identified innovation overcome existing challenges. Future research priorities proposed advance technologies, fostering more efficient systems.

Язык: Английский

Процитировано

2
A Uniform Self‐Reinforced Organic/Inorganic Hybrid SEI Chelation Strategy on Microscale Silicon Surfaces for Stable‐Cycling Anodes in Lithium‐Ion Batteries DOI
Xin Li, Mohammad Tabish,

Wenping Zhu

и другие.

Small, Год журнала: 2023, Номер 19(41)

Опубликована: Июнь 13, 2023

Abstract A promising anode material for Li‐ion batteries, silicon (Si) suffers from volume expansion‐induced pulverization and solid electrolyte interface (SEI) instability. Microscale Si with high tap density initial Coulombic efficiency (ICE) has become a more anticipated choice, but it will exacerbate the above issues. In this work, polymer polyhedral oligomeric silsesquioxane‐lithium bis (allylmalonato) borate (PSLB) is constructed by in situ chelation on microscale surfaces via click chemistry. This polymerized nanolayer an “organic/inorganic hybrid flexible cross‐linking” structure that can accommodate change of Si. Under stable framework formed PSLB, large number oxide anions chain segment preferentially adsorb LiPF 6 further induce integration inorganic‐rich, dense SEI, which improves mechanical stability SEI provides accelerated kinetics Li + transfer. Therefore, Si4@PSLB exhibits significantly enhanced long‐cycle performance. After 300 cycles at 1 g −1 , still provide specific capacity 1083 mAh . Cathode‐coupled LiNi 0.9 Co 0.05 Mn O 2 (NCM90) full cell retains 80.8% its after 150 0.5 C.

Язык: Английский

Процитировано

20