Designing Amino Functionalized Titanium-Organic Framework on Separators Toward Sieving and Redistribution of Polysulfides in Lithium-Sulfur Batteries DOI Creative Commons

Xiaoya Kang,

Tianqi He, Hao Dang

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: May 26, 2025

Abstract Shuttle effect of polysulfides overshadows the superiorities lithium–sulfur batteries. Size–sieving could address this thorny trouble rely on size differ in and lithium ions. However, clogged pose some challenges for cathode are rarely recycled during charging/discharging. Herein, an amino functionalized titanium-organic framework is designed modifying batteries separator to aforementioned challenges. Wherein, introduction narrows titanium–organic pore size, enabling functional selectively modulate ions migration using size-sieving effect, thereby completely suppressing shuttle. Furthermore, blocked will be adsorbed surface by positively charged leveraging electrostatic adsorption, ensuring redistribute reuse, boosting active materials utilization. Significantly, not hindered since there transfer channels formed via Lewis acid–base interaction with help amino. Combined these virtues, modified enjoy ultralow attenuation rate 0.045% per cycle over 1000 cycles at 1.0C. Electrostatic adsorption cover deficiencies existing inhibition shuttle providing fresh insight into advancement lithium-sulfur

Language: Английский

Cobalt Hexacyanoferrate Cathode with Stable Structure and Fast Kinetics for Aqueous Zinc-Ion Batteries DOI
Yongwei Tang, Guofeng Ma, Jinhong Li

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

Prussian blue analogues (PBAs) show great promise as cathode candidates for aqueous zinc-ion batteries thanks to their high operating voltage, open-framework structure, and low cost. However, suffering from numerous vacancies crystal water, the electrochemical performance of PBAs remains unsatisfactory, with limited capacity poor cycle life. Here, a simple coprecipitation method is shown synthesize well-crystallized cobalt hexacyanoferrate (CoHCF) small amount water specific surface area. Benefitting two redox-active sites, CoHCF could deliver 104.6 mA h g-1 at 0.02 A 72 1 g-1, good retention 92.4% after 300 cycles 0.5 g-1. Several kinetic tests indicate that reaction dominated by capacitive behavior diffusion coefficient Zn2+ ions approximately 10-9 cm2 s-1. Furthermore, ex-situ XRD indicated reversible insertion/extraction without any phase transition.

Language: Английский

Citations

1
Cobalt Oxide-Doped Laser-Induced Graphene on Copper Current Collectors for Anode-Free Lithium Metal Batteries DOI
Zhili Li, Zhifeng Li, Xiaojuan Liu

et al.

Electrochimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 146109 - 146109

Published: March 1, 2025

Language: Английский

Citations

0
Breaking Boundaries: Advancing Trisulfur Radical-Mediated Catalysis for High-Performance Lithium–Sulfur Batteries DOI Creative Commons
Junfeng Wu, Bohai Zhang, Zhi‐Qi Zhao

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: April 11, 2025

Abstract Lithium–sulfur batteries (LSBs) have attracted significant attention due to their high theoretical energy density and low-cost raw materials. However, LSBs still face various challenges in practical applications, particularly the shuttle effect, electrode passivation, slow kinetics. In recent years, trisulfur radicals (TRs), important intermediates LSBs, emerged as a promising beyond-traditional solution these problems, which serves mediated catalyst improve electrochemical performance of LSBs. As system that is inconsistent with catalytic conversion process discussed traditional this review focuses on generation, detection, promotion, roles TRs, especially emphasizing formation TRs solid-state lapis lazuli analogs discussing pros cons donor number solvents and/or co-solvents stabilizing TRs. Strategies involving homogeneous/heterogeneous catalysts are for increment enhancing reactions Ultimately, given TRs’ potential key factor future perspectives outlooks provided guide further development This provides valuable insights into design electrolytes paving new direction way advanced

Language: Английский

Citations

0
Nanocrystalline iron phosphide as polysulfide filter and bifunctional catalyst for increasing capacity of lithium sulfur batteries DOI
Jethro Daniel A. Pascasio,

Mina Park,

Sooan Bae

et al.

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 647, P. 237326 - 237326

Published: May 16, 2025

Language: Английский

Citations

0
A Comparison Study on the Constructed Polypyrrole Coating and Polypyrrole-Derived Carbon Coating for the Electrochemical Performance of the Iron Difluoride Cathode DOI
Jinwu Bai,

Qing Ke,

Yujia Wang

et al.

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

Published: May 23, 2025

FeF2 is considered a high-capacity conversion cathode for next-generation lithium-ion batteries due to its high energy density. However, struggles with poor electronic conductivity, slow reaction kinetics, and serious interfacial side reactions, leading rapid cell degradation during cycling. In this study, vapor self-polymerization method employed fabricate polypyrrole (PPy) coating on FeF2, which acts as an artificial electrolyte interface improved ionic conductivities. Additionally, the PPy-derived carbon also prepared, systematic comparison study of these two coatings conducted. The has higher conductivity than PPy coating. merging coating, followed by agglomeration particles carbonization process, hinders transport lithium ions. Consequently, PPy-coated positive electrode exhibits better cycling capacity retention performance owing fast diffusion kinetics low voltage hysteresis, in discharge 189.2 mAh g-1 over 100 cycles achieved. This work provides feasible technology conductive polymer metal fluorides offers perspective selection materials battery applications.

Language: Английский

Citations

0
Designing Amino Functionalized Titanium-Organic Framework on Separators Toward Sieving and Redistribution of Polysulfides in Lithium-Sulfur Batteries DOI Creative Commons

Xiaoya Kang,

Tianqi He, Hao Dang

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: May 26, 2025

Abstract Shuttle effect of polysulfides overshadows the superiorities lithium–sulfur batteries. Size–sieving could address this thorny trouble rely on size differ in and lithium ions. However, clogged pose some challenges for cathode are rarely recycled during charging/discharging. Herein, an amino functionalized titanium-organic framework is designed modifying batteries separator to aforementioned challenges. Wherein, introduction narrows titanium–organic pore size, enabling functional selectively modulate ions migration using size-sieving effect, thereby completely suppressing shuttle. Furthermore, blocked will be adsorbed surface by positively charged leveraging electrostatic adsorption, ensuring redistribute reuse, boosting active materials utilization. Significantly, not hindered since there transfer channels formed via Lewis acid–base interaction with help amino. Combined these virtues, modified enjoy ultralow attenuation rate 0.045% per cycle over 1000 cycles at 1.0C. Electrostatic adsorption cover deficiencies existing inhibition shuttle providing fresh insight into advancement lithium-sulfur

Language: Английский

Citations

0