A lithiated zeolite-based protective layer to boost the cycle performance of lithium−oxygen batteries via redox mediator sieving DOI Creative Commons

Huiping Wu,

Zhaohan Shen,

Wei Yu

et al.

Next Energy, Journal Year: 2024, Volume and Issue: 4, P. 100135 - 100135

Published: April 30, 2024

Lithium–oxygen (Li–O2) batteries with ultra-high theoretical specific energy (3500 Wh kg−1) have attracted significant attention, but the sluggish electrochemical processes of discharge product Li2O2 lead to poor cycling stability. Redox mediators (RMs) as soluble catalysts are widely used assist formation/decomposition Li2O2. However, shuttle effect RMs causes severe deterioration both and Li metal anodes. Herein, for first time we synthesize a lithiated zeolite-based protective layer on anodes mitigate 2,2,6,6-tetramethylpiperidinyloxy (TEMPO) in Li–O2 batteries. The successfully blocks migration TEMPO toward anode owing angstrom-level aperture size zeolite. Due excellent redox-mediator-sieving capability layer, cycle life Li−O2 is significantly prolonged more than ten times at current density 250 mA g−1 limited capacity 500 h g−1. This work demonstrates that capable molecular sieving facile scalable way

Language: Английский

Enhancing the electrochemical performance and safety of lithium-ion battery via fluorinated MOF-based multifunctional separator DOI
Jian-Bo Li,

Guijie Yin,

Yannan Wang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160148 - 160148

Published: Feb. 1, 2025

Language: Английский

Citations

0
Improved internal short circuit models for thermal runaway simulations in lithium-ion batteries DOI Creative Commons
B. Singh, Yashraj Gurumukhi,

Engin Tekinalp

et al.

APL Energy, Journal Year: 2025, Volume and Issue: 3(1)

Published: Feb. 12, 2025

Thermal runaway (TR) modeling is one of the primary tools that can be used to overcome challenges associated with lithium-ion battery (LIB) safety. Among all LIB accidents have occurred over past decade, Internal Short Circuit (ISC) remains most common trigger mechanism. Many available models in literature either use a simplified approach simulate ISC or completely ignore its contribution. The aim this study understand nature heat released for different types scenarios, including aluminum-anode, anode–cathode, and copper-cathode ISC. We behavior using coupled electrochemical–thermal model an integrated TR chemical kinetics solver built COMSOL Multiphysics framework. time duration release magnitude peak current are studied as functions parameters such size penetrating filament capacity cell. numerical results build empirical validated against published experimental propagation data. Our successfully viable low-cost substitute lower order (lumped) simulations enable prevention mitigation.

Language: Английский

Citations

0
Review of mechanisms and detection methods of internal short circuits in lithium-ion batteries DOI
Wei Luo,

Shunshun Zhang,

Yifang Gao

et al.

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

Published: March 19, 2025

Language: Английский

Citations

0
Probing the electrochemical behaviour of lithium imide as an electrolyte for solid-state batteries DOI Creative Commons

Jeremy Paul Lowen,

Teresa Insinna,

T.V. Beatriceveena

et al.

EES batteries., Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Lithium imide is an underexplored candidate for all-solid-state battery electrolyte. Here it shown to possess many desirable properties and unusual electrochemical behaviour, alongside its first operation in two lithium metal batteries.

Language: Английский

Citations

0
Stress engineering for crack and dendrite prevention in solid electrolytes via ion implantation DOI Creative Commons

Charlotte Thomas,

Wei Zhang, M. Chancey

et al.

Cell Reports Physical Science, Journal Year: 2025, Volume and Issue: unknown, P. 102544 - 102544

Published: April 1, 2025

Language: Английский

Citations

0
Unraveling Soft Breakdown in Solid-State Electrolytes DOI

Haoqi Ren,

Yu Lin Zhong, Xiaoting Lin

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111044 - 111044

Published: April 1, 2025

Language: Английский

Citations

0
Effect of Propagating Dopant Reactivity on Lattice Oxygen Loss in LLZO Solid Electrolyte Contacted with Lithium Metal DOI Creative Commons
Michael J. Counihan, Zachary D. Hood, Hong Zheng

et al.

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

Published: April 25, 2025

Abstract Lithium lanthanum zirconium oxide (LLZO) is widely known as the most stable solid electrolyte against lithium metal electrodes. This thermodynamic stability can be lost by presence of dopants which are required to stabilize cubic phase LLZO and reduced metal. However, role oxygen in such reactions taken for granted. In this work, reduction Nb‐substituted (Nb‐LLZO) explored Li shows that interfacial propagate lead decomposition with substantial Nb 5+ deep into bulk electrolyte. Scanning Transmission Electron Microscopy Energy Dispersive X‐ray Spectroscopy thermogravimetric analyses show much due vacancies formed, leading increased electronic conductivity mapped conductive Atomic Force Microscopy. Density functional theory calculations indicate release favored excess lithiation Nb‐LLZO. Electrochemical impedance polycrystalline Nb‐LLZO continuous evolution ionically resistive interphases near interface while single crystals little reactivity at room temperature self‐limiting 60°C. work underlines grain boundaries propagating destructive highlights previously unseen mechanisms involving lattice LLZO.

Language: Английский

Citations

0
Interfacial system optimization and dynamic self-healing for solid-state lithium metal batteries with high critical current density and long-term cycling stability DOI

Kailiang Yu,

Manying Cui,

Qidi Wang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 514, P. 163231 - 163231

Published: April 30, 2025

Language: Английский

Citations

0
Contradictory Structure Design with Li2CO3 Retention for Garnet-Based Solid-State Lithium Metal Batteries DOI
Wei Liu, Baoquan Zhang,

Qiushi Zhu

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: May 3, 2025

Garnet Li6.5La3Zr1.5Ta0.5O12 (LLZTO) has emerged as a promising candidate for solid-state lithium-metal batteries (SSLMBs). However, the air susceptibility with Li2CO3 impurity and severe electron leakage lead to inferior cycling performance, remaining critical challenge. Herein, contradictory interface chemistry been proposed in which normally undesired is deliberately retained delicately adopted, can effectively enhance interfacial stability of Li|LLZTO. The growth behavior on LLZTO systematically investigated, while its formation residual controllable, serves an insulating layer blocks leakage. Moreover, porous lithiophilic Li3PW12O40 (POMs) ensures enhanced contact provides three-dimensional Li+-channels accelerate Li+ migration. This structure efficiently inhibit Li-dendrite penetration at grain boundaries. Therefore, Li|POMs-LLZTO|NCM full-cell achieve 97.7% capacity retention after 100 cycles. facile strategy innovatively repurposes into functional interlayer, offering prospects develop large-scale garnet-based SSLMBs.

Language: Английский

Citations

0
Mapping of lithium ion concentrations in 3D structures through development of in situ correlative imaging of X-ray Compton scattering-computed tomography DOI Creative Commons
Chu Lun Alex Leung, Matthew D. Wilson, Thomas Connolley

et al.

Journal of Synchrotron Radiation, Journal Year: 2024, Volume and Issue: 31(4), P. 888 - 895

Published: June 5, 2024

Understanding the correlation between chemical and microstructural properties is critical for unraveling fundamental relationship materials chemistry physical structures that can benefit science engineering. Here, we demonstrate novel in situ correlative imaging of X-ray Compton scattering computed tomography (XCS-CT) technique studying this relationship. XCS-CT image light elements do not usually exhibit strong signals using other characterization techniques. This paper describes setup data analysis method calculating valence electron momentum density lithium-ion concentration, provides two examples spatially temporally resolved inside batteries 3D. was applied to study types rechargeable lithium standard coin cell casings: (1) a battery containing cathode bespoke microstructure liquid electrolyte, (2) solid-state solid-polymer electrolyte. The beneficial wide variety systems map composition changes 3D structures.

Language: Английский

Citations

3