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

Research progress in fault detection of battery systems: A review DOI

Yuzhao Shang,

Shanshuai Wang,

Nianhang Tang

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 98, P. 113079 - 113079

Published: July 29, 2024

Language: Английский

Citations

53
Insights into electrolyte-induced temporal and spatial evolution of an ultrafast-charging Bi-based anode for sodium-ion batteries DOI

Xinfei Wu,

Zijian Li,

Wencong Feng

et al.

Energy storage materials, Journal Year: 2024, Volume and Issue: 66, P. 103219 - 103219

Published: Jan. 26, 2024

Language: Английский

Citations

21
Selectively fluorinated aromatic lithium salts regulate the solvation structure and interfacial chemistry for all-solid-state batteries DOI Creative Commons
Shuaishuai Yan, Hao Liu, Yang Lu

et al.

Science Advances, Journal Year: 2025, Volume and Issue: 11(5)

Published: Jan. 31, 2025

Solid polymer electrolytes suffer from the polymer-dominated Li + solvation structure, causing unstable electrolyte/electrode interphases and deteriorated battery performance. Here, we design a class of selectively fluorinated aromatic lithium salts (SFALS) as single conducting to regulate structure interfacial chemistry for all-solid-state metal batteries. By tuning anionic -polyether coupling is weakened, -anion coordination enhanced. The hydrogen bonding between SFALS matrix induces special “triad”-type which improves electrolyte homogeneity mechanical strength, promotes formation an ultrathin robust 2 O-rich solid interphase. Therefore, stable cycling more than 1650 cycles (Coulombic efficiency, 99.8%) LiFePO 4 /Li half cells 580 (97.4% capacity retention) full achieved. This molecular engineering strategy could inspire further advancements functional practical application

Language: Английский

Citations

5
Control of Two Solid Electrolyte Interphases at the Negative Electrode of an Anode‐Free All Solid‐State Battery based on Argyrodite Electrolyte DOI Open Access
Yixian Wang, Vikalp Raj,

Kaustubh G. Naik

et al.

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

Published: Jan. 6, 2025

Anode-free all solid-state batteries (AF-ASSBs) employ "empty" current collector with three active interfaces that determine electrochemical stability; lithium metal - Solid electrolyte (SE) interphase (SEI-1), interface, and SE (SEI-2). Argyrodite Li6PS5Cl (LPSCl) solid displays SEI-2 containing copper sulfides, formed even at open circuit. Bilayer of 140 nm magnesium/30 tungsten (Mg/W-Cu) controls the allows for state-of-the-art performance in half-cells fullcells. AF-ASSB NMC811 cathode achieves 150 cycles Coulombic efficiency (CE) above 99.8%. With high mass-loading (8.6 mAh cm-2), retains 86.5% capacity after 45 0.2C. During electrodeposition Li, gradient Li-Mg solution is formed, which reverses upon electrodissolution. This promotes conformal wetting/dewetting by Li stabilizes SEI-1 lowering thermodynamic driving force reduction. Inert refractory W underlayer required to prevent ongoing formation also drives degradation. Mo Nb layers likewise protect Cu from corroding, while Li-alloying (Mg, Sn) are less effective due volume changes associated pulverization. Mechanistic explanation observed segregation within alloying LixMg layer provided through mesoscale modelling, considering opposing roles diffusivity differences interfacial stresses.

Language: Английский

Citations

1
Improved interfacial li-ion transport in composite polymer electrolytes via surface modification of LLZO DOI Open Access
Michael J. Counihan, Jungkuk Lee, Priyadarshini Mirmira

et al.

Energy Materials, Journal Year: 2025, Volume and Issue: 5(3)

Published: Jan. 23, 2025

Composite polymer electrolytes that incorporate ceramic fillers in a matrix offer mechanical strength and flexibility as solid for lithium metal batteries. However, fast Li+ transport between Li+-conductive filler phases is not simple achievement due to high barriers exchange across the interphase. This study demonstrates how modification of Li7La3Zr2O12 (LLZO) nanofiller surfaces with silane chemistries influences at local global electrolyte scales. Anhydrous reactions covalently link amine-functionalized silanes [(3-aminopropyl)triethoxysilane (APTES)] LLZO nanoparticles, which protects air. APTES functionalization lowers poly (ethylene oxide) (PEO)-LLZO interphase resistance half unmodified increases effective transference number, while insulating Al2O3 completely blocks ion number conductivity PEO-lithium bis(trifluoromethanesulfonyl)imide (LiTFSI)-LLZO composites. Modeling an inner resistive PEO surrounded by outer conductive explains non-linear trends. Solid-state 7Li & 6Li nuclear magnetic resonance shows only exchanges PEO-LiTFSI some interphase, no appreciable through bulk LLZO. Surface promising path toward lowering polymer-ceramic resistance. work changes affect macroscopic performance, highlighting intricate relationships all interfaces inherently heterogeneous composite electrolytes.

Language: Английский

Citations

1
Toward High‐Performance, Flexible, Photo‐Assisted All‐Solid‐State Sodium‐Metal Batteries: Screening of Solid‐Polymer‐Based Electrolytes Coupled with Photoelectrochemical Storage Cathodes DOI Open Access
Ronghao Wang,

Yu‐Zhen Zhang,

Weiyi Wang

et al.

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

Published: Feb. 18, 2025

Abstract The advancement of photo‐assisted rechargeable sodium‐metal batteries with high energy efficiency, lightweight structure, and simplified design is crucial for the growing demand in portable electronics. However, addressing intrinsic safety concerns liquid electrolytes sluggish reaction kinetics existing photoelectrochemical storage cathodes (PSCs) remains a significant challenge. In this work, functionalized light‐driven composite solid electrolyte (CSE) fillers are systematically screened, optimized PSC materials employed to construct advanced solid‐state battery (PSSMB). To further enhance mechanical properties poly(ethylene oxide) compatibility CSE, natural lignocellulose incorporated, enabling fabrication flexible PSSMBs. situ tests density functional theory calculations reveal that electric field facilitated sodium salt dissociation, reduced interfacial resistance, improved ionic conductivity (0.1 mS cm −1 ). Meanwhile, energy‐level matching maximized utilization photogenerated carriers, accelerating enhancing interface between cathode. resulting pouch‐type PSSMB demonstrates remarkable discharge capacity 117 mAh g outstanding long‐term cycling stability, retaining 89.1% its achieving an efficiency 96.8% after 300 cycles at 1 C. This study highlights versatile strategy advancing safe, high‐performance batteries.

Language: Английский

Citations

1
Hydride-Based Interlayer for Solid-State Anode-Free Battery DOI

Yonglin Huang,

Yuxuan Zhang, Ruixin Wu

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(7), P. 3409 - 3417

Published: June 20, 2024

Solid-state batteries (SSBs) are considered a promising approach to realizing an anode-free concept with high energy densities. However, the initial Coulombic efficiency (ICE) has remained insufficient for using sulfide-based solid electrolytes (SEs). Herein, we incorporated hydride-based interlayer, 3LiBH4-LiI (LBHI), between typical sulfide SE, Li6PS5Cl, and Cu current collector. By investigating Li plating stripping behaviors (electro)chemical stability SEs plated Li, demonstrated that LBHI can effectively improve interfacial stability, leading ICE exceeding 94% in half cells. This interlayer also improves efficiencies specific capacities full Furthermore, utilization of enables one study without interference from instabilities. The analysis stack pressure evolution during electrochemical cycling reveals soft shorting SSBs arises both dendrite formation deformation, offering insights into further optimizing solid-state batteries.

Language: Английский

Citations

6
Tailored Engineering on the Interface Between Lithium Metal Anode and Solid‐State Electrolytes DOI Creative Commons
Qi Zhou,

Xiaosong Xiong,

Jun Peng

et al.

Energy & environment materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 4, 2024

The replacement of non‐aqueous organic electrolytes with solid‐state (SSEs) in lithium metal batteries (SLMBs) is considered a promising strategy to address the constraints lithium‐ion batteries, especially terms energy density and reliability. Nevertheless, few SLMBs can deliver required cycling performance long‐term stability for practical use, primarily due suboptimal interface properties. Given diverse solidification pathways leading different characteristics, it crucial pinpoint source deterioration develop appropriate remedies. This review focuses on Li|SSE issues between anode SSE, discussing recent advancements understanding (electro)chemistry, impact defects, evolutions that vary among SSE species. state‐of‐the‐art strategies concerning modified SEI, artificial interlayer, surface architecture, composite structure are summarized delved into internal relationships characteristics enhancements. current challenges opportunities characterizing modifying suggested as potential directions achieving SLMBs.

Language: Английский

Citations

4
Photoexcitation‐Enhanced High‐Ionic Conductivity in Polymer Electrolytes for Flexible, All‐Solid‐State Lithium‐Metal Batteries Operating at Room Temperature DOI
Ronghao Wang, Weiyi Wang, Yuzhen Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 29, 2024

Abstract Designing solid polymer electrolytes (SPEs) with high ionic conductivity for room‐temperature operation is essential advancing flexible all‐solid‐state energy storage devices. Innovative strategies are urgently required to develop SPEs that safe, stable, and high‐performing. In this work, we introduce photoexcitation‐modulated heterojunctions as catalytically active fillers within SPEs, guided by photocatalytic design principles, meanwhile employ natural bacterial cellulose improve the compatibility poly(ethylene oxide), coordination environment of lithium salts, optimize both ion transport mechanical properties. situ photothermal experiments theoretical calculations reveal strong photogenerated electric field produced trace oxide) under photoexcitation significantly enhances salt dissociation, increasing concentration mobile Li + . This results in a substantial increase conductivity, reaching 0.135 mS cm −1 at 25 °C, transference number 0.46. The lithium‐metal pouch cells exhibit an impressive discharge capacity 178.8 mAh g even after repeated bending folding, demonstrate exceptional long‐term cycling stability, retaining 86.7 % their initial 250 cycles 1 C (25 °C). research offers novel approach developing high‐performance batteries.

Language: Английский

Citations

4
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