High‐Sulfur‐Loading Gel Cathode Employing a Self‐Supporting Composite Matrix for Lithium‐Polysulfide Batteries DOI Open Access
Cong Li, Yan Yuan, Zhengqian Li

et al.

Energy Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 14, 2024

Aimed at the application drawbacks of lithium‐polysulfide semiflow battery involved with low utilization active material and inevitable shuttle effect, a self‐supporting porous substrate characterized by high porosity outstanding conductivity is developed in this study, which consists cotton‐derived nanofiber graphene wrapped on nanofiber. Then gelable polymer poly‐(vinylidenefluoride‐hexafluoropropylene) further integrated into for fabricating novel PS gel cathode. The as‐prepared composite matrix possesses strong adsorption/loading ability gelation as well favorable electron/ion transport pathway, not only provides effective restriction toward migration shuttle, but also actualizes rapid redox conversion localized species. Consequently, resultant cathode demonstrates reversible capacity, excellent cycle rate capability even sulfur loading up to 9.0 mg cm −2 .

Language: Английский

Stabilizing the Bilateral Interfaces by a PVDF-Based Double-Layer Solid Composite Electrolyte with a Relieved Dehydrofluorination Effect for Solid-State Lithium Metal Batteries DOI
Yan Yuan, Xuyi Liu,

Xinyi Dong

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(43), P. 59547 - 59555

Published: Oct. 17, 2024

The dehydrofluorination effect of poly(vinylidene fluoride) (PVDF) induced by ceramic fillers with an alkaline surface compromises the comprehensive properties solid composite electrolyte (SCE) and leads to deficient performance solid-state lithium metal batteries (SLMBs). In this work, a unique PVDF-based double-layer was fabricated, which consisted Li6.4La3Zr1.4Ta0.6O12 (LLZTO)-filled SCE poly(acrylic acid) (PAA) as alkalinity-scavenging agent in contact Li anode, another difluoro(oxalato)borate (LiDFOB) film-formation additive facing cathode. It is found that moderate amount PAA relieves degree PVDF matrix improves plating/stripping reversibility, addition LiDFOB involved formation stable passivation film on Consequently, resultant holds favorable overall properties, especially being well-compatible both electrodes, endowing SLMBs superior cycle rate at room temperature.

Language: Английский

Citations

4
Enhancing the electrochemical performance of Ni-rich cathode through an in-situ La-doping and La4NiLiO8-coating synergistic strategy DOI
Wei Zeng,

Sheng-Qi Su,

Yong Qin

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 501, P. 157791 - 157791

Published: Nov. 19, 2024

Language: Английский

Citations

3
Construction of Stable Two-sided Interface via the Addition of Phenylboric Acid in Lithium-ion Batteries DOI
Shuliang Luo,

Ge Cui,

Lu Ou

et al.

Electrochimica Acta, Journal Year: 2024, Volume and Issue: 498, P. 144684 - 144684

Published: Sept. 1, 2024

Language: Английский

Citations

1
Strain performance and thickness-induced asymmetry in SrTiO3 doped BNT-based lead-free ferroelectrics from nonergodic to ergodic phase DOI
Yiyi Wang,

Yunxia Zhao,

Jing Shi

et al.

Journal of Physics and Chemistry of Solids, Journal Year: 2024, Volume and Issue: 193, P. 112188 - 112188

Published: Oct. 1, 2024

Language: Английский

Citations

1
Construction of Stable Two-Sided Interface Via the Addition of Phenylboric Acid in Lithium-Ion Batteries DOI
Shuliang Luo,

Ge Cui,

Lu Ou

et al.

Published: Jan. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Language: Английский

Citations

0
Cathode-supported solid polymer electrolyte with solvate ionic liquid and polysulfide modification towards room-temperature lithium metal batteries DOI

Yan YUAN,

Yaxin Kong,

Xiuping Peng

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
Microscopic insights into effects of sulfolane additive on Li-S battery electrolyte DOI
Bin Zheng,

Zhaoyue He,

Xiaozhen Lei

et al.

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: unknown, P. 126000 - 126000

Published: Sept. 1, 2024

Language: Английский

Citations

0
Adsorption and Catalysis Effects of LaMnO3 Nanosheets for High‐Performance Li–S Batteries DOI

Yihang Su,

Hai Lu, Ben Zhou

et al.

Energy Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 7, 2024

In this article, an effective redox regulation strategy of Li–S batteries is illustrated by introducing a unique petal‐like LaMnO 3 nanosheet (LMO‐NS) into the sulfur cathode. It found that LMO‐NS with abundant active sites offers strong chemical affinity toward species, which play key roles in immobilizing produced polysulfides during charge/discharge operation and then accelerating their conversion. Consequently, reaction kinetics remarkably boosted polysulfide shuttle greatly alleviated owing to adsorption‐catalysis effects LMO‐NS, endows composite cathode increased reversible capacity improved cycle rate capability.

Language: Английский

Citations

0
High‐Sulfur‐Loading Gel Cathode Employing a Self‐Supporting Composite Matrix for Lithium‐Polysulfide Batteries DOI Open Access
Cong Li, Yan Yuan, Zhengqian Li

et al.

Energy Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 14, 2024

Aimed at the application drawbacks of lithium‐polysulfide semiflow battery involved with low utilization active material and inevitable shuttle effect, a self‐supporting porous substrate characterized by high porosity outstanding conductivity is developed in this study, which consists cotton‐derived nanofiber graphene wrapped on nanofiber. Then gelable polymer poly‐(vinylidenefluoride‐hexafluoropropylene) further integrated into for fabricating novel PS gel cathode. The as‐prepared composite matrix possesses strong adsorption/loading ability gelation as well favorable electron/ion transport pathway, not only provides effective restriction toward migration shuttle, but also actualizes rapid redox conversion localized species. Consequently, resultant cathode demonstrates reversible capacity, excellent cycle rate capability even sulfur loading up to 9.0 mg cm −2 .

Language: Английский

Citations

0