Cited by Probing a solid electrolyte interphase layer with sub-nanometer pores using redox mediators

Regulating the solvation structure of an acetonitrile-based electrolyte for Li/NMC811 batteries cycled at low temperature DOI

Lin Liu,

Zulipiya Shadike,

Xin-Yin Cai

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(12), P. 6947 - 6954

Published: Jan. 1, 2024

An acetonitrile-based localized high concentration electrolyte has been developed for low temperature lithium metal batteries. The corresponding Li/NMC811 cell delivers a capacity of 113 mA h g −1 at −40 °C with 85.5% retention.

Language: Английский

Citations

Tuning solvation structure to enhance low temperature kinetics of lithium-ion batteries DOI

Junwei Zhang,

Jinlong Sun,

Dongni Zhao

et al.

Energy storage materials, Journal Year: 2024, Volume and Issue: 72, P. 103698 - 103698

Published: Aug. 11, 2024

Language: Английский

Citations

Development of PFAS-Free Locally Concentrated Ionic Liquid Electrolytes for High-Energy Lithium and Aluminum Metal Batteries DOI

Xu Liu, Cheng Xu, Henry Adenusi

et al.

Accounts of Chemical Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 26, 2025

ConspectusLithium-ion batteries (LIBs) based on graphite anodes are a widely used state-of-the-art battery technology, but their energy density is approaching theoretical limits, prompting interest in lithium-metal (LMBs) that can achieve higher density. In addition, the limited availability of lithium reserves raises supply concerns; therefore, research postlithium metal underway. A major issue with these anodes, including lithium, dendritic formation and insufficient reversibility, which leads to safety risks due short circuits use flammable electrolytes.Ionic liquid electrolytes (ILEs), composed salts ionic liquids, offer safer alternative nonflammable nature high thermal stability. Moreover, they enable Coulombic efficiency (CE) for (LMAs) allow reversible stripping/plating various post-lithium metals application, e.g., aluminum (AMBs). Despite advantages, ILEs suffer from viscosity, impairs ion transport wettability. To resolve challenges, researchers have developed locally concentrated (LCILEs) by adding low-viscosity nonsolvating cosolvents, hydrofluoroether, ILEs. These cosolvents do not coordinate cationic charge carriers, thereby reducing viscosity improving without compromising compatibility anodes. However, inherent difference molecular organic solvents liquids full charged species, most i.e., less effective respect conventional solvents. hydrofluoroether contains environmentally problematic -CF3 and/or -CF2- groups, per- polyfluoroalkyl substances (PFAS), subject restrictions.In this Account, we provide an overview endeavors our group development PFAS-free LCILEs high-energy LMBs AMBs. First, aromatic cations less/nonfluorinated proposed weaken cation-anion interaction strengthen cation-cosolvent interaction, respectively. This consideration uncovered phase nanosegregation structure effectively reduces promotes Li+ ability nonaromatic highly fluorinated PFAS cosolvents. Then, effect electrolyte components Li+, SEI composition LMA reversibility presented, confirms feasibility reaching CE up 99.7% LCILEs. subsequent discussion cathode compatibility, present addition LiFePO4 cyclability inferior density, nickel-rich layered oxide sulfurized polyacrylonitrile (SPAN) be employed construct different anodic Additionally, feasible application LCILE strategy promote kinetics AMBs relying anode chemistry demonstrated. Lastly, future directions emphasis component optimization, dynamics, electrode/electrolyte interphase provided.

Language: Английский

Citations

Interphase Engineering via Solvent Molecule Chemistry for Stable Lithium Metal Batteries DOI

Jiahang Chen,

Huichao Lü,

Xirui Kong

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(23)

Published: March 27, 2024

Abstract Lithium metal battery has been regarded as promising next‐generation system aiming for higher energy density. However, the lithium anode suffers severe side‐reaction and dendrite issues. Its electrochemical performance is significantly dependant on electrolyte components solvation structure. Herein, a series of fluorinated ethers are synthesized with weak‐solvation ability owing to duple steric effect derived from designed longer carbon chain methine group. The structure rich in AGGs (97.96 %) enables remarkable CE 99.71 % (25 °C) well high 98.56 even at −20 °C. Moreover, lithium‐sulfur exhibits excellent wide temperature range (−20 50 ascribed modified interphase LiF/LiO 2 . Furthermore, pouch cell delivers superior density 344.4 Wh kg −1 maintains 80 capacity retention after cycles. novel solvent design via molecule chemistry provides alternative strategy adjust thus favors high‐energy batteries.

Language: Английский

Citations

An Anode-Free Sodium Dual-ion Battery DOI

Jinhui Zhao,

Mengyao Tang, Hao Lan

et al.

Energy storage materials, Journal Year: 2024, Volume and Issue: 70, P. 103480 - 103480

Published: May 13, 2024

Language: Английский

Citations

Ether‐Modified Nonflammable Phosphate Enabling Anion‐Rich Electrolyte for High‐Voltage Lithium Metal Batteries DOI

Yuankun Wang,

Chunyu Zheng,

Weiwei Xie

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

Abstract Phosphate‐based localized high‐concentration electrolytes (LHCE) feature high flame retardant and satisfactory cathodic stability for lithium metal batteries. However, stable cycling of those at ultra‐high upper cut‐off voltages long‐term remains challenging. Herein, an ether‐modified phosphate, diethyl (2‐methoxy ethoxy) methylphosphonate (DMEP), is designed high‐voltage applications. The ether modification enhances the Li + ‐DMEP‐FSI − coordination structure, promoting formation cation‐anion aggregates (AGG) dominated solvation which favors generation LiF‐rich cathode electrolyte interphase layers compared to triethyl phosphate (TEP)‐based LHCE. Consequently, degradation, including transition‐metal dissolution electrode cracking, well‐suppressed. LiNi 0.8 Co 0.1 Mn O 2 (NCM811)||Li full cells using DMEP‐based LHCEs show more than 90.7% capacity retention ultrahigh voltage 4.7 V after 100 cycles. Notably, DMEP‐LHCE exhibits enhanced safety that TEP‐LHCE, suggesting its versatility potential next‐generation

Language: Английский

Citations

Construction of low-resistance nano-transport channels with UiO-66-(NH2)2 “transmembrane” in polyamide layer structure for efficient nanofiltration DOI

Xiaowen Huo,

Yue Miao,

Ziyang Guo

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154488 - 154488

Published: Aug. 5, 2024

Language: Английский

Citations

Self‐Assembled Lithiophilic Interface with Abundant Nickel‐Bis(Dithiolene) Sites Enabling Highly Durable and Dendrite‐Free Lithium Metal Batteries DOI

Yaoda Wang,

Si‐Wen Ke,

Gefei Qiao

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 14(1)

Published: Nov. 12, 2023

Abstract Despite its ultrahigh theoretical capacity and ultralow redox electrochemical potential, the practical application of lithium metal anodes is still hampered by severe dendrite growth unstable solid electrolyte interphase (SEI). Herein, a self‐assembled lithiophilic interface (SALI) for regulating Li electroplating behavior constructed introducing meticulously synthesized Ni‐bis(dithiolene)‐based molecule (NiS 4 ‐COOH) into hybrid fluorinated ester‐ether electrolyte. The NiS ‐COOH molecules with carboxyl functional groups can spontaneously anchor on surface to form SALI, whose abundant Ni‐bis(dithiolene) sites effectively reduce initial deposition overpotential guide subsequent uniform electrodeposition. Moreover, due interaction between coordination unsaturated Ni atom negatively charged PF 6 − , additive significantly change ionic environment in electrolyte, which greatly conducive suppressing decomposition, optimizing SEI composition accelerating Li‐ion transfer. Consequently, ‐COOH‐modified leads impressive performance Li||LiFePO Li||LiNi 0.8 Co 0.1 Mn O 2 batteries, delivering Coulombic efficiencies, considerable retention, good rate even at high areal active material loadings. This study presents great potential SALIs derived from multifunctional metal‐organic additives toward high‐specific‐energy batteries.

Language: Английский

Citations

Practical Lithium–Sulfur Batteries: Beyond the Conventional Electrolyte Concentration DOI

Xiaosheng Song,

Xinghui Liang, Hun Kim

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: unknown, P. 5576 - 5586

Published: Oct. 26, 2024

Language: Английский

Citations

Regulating the interfacial chemistry of graphite in ethyl acetate‐based electrolyte for low‐temperature Li‐ion batteries DOI

Ling Che,

Zhaowen Hu, Tao Zhang

et al.

Battery energy, Journal Year: 2024, Volume and Issue: 3(3)

Published: Jan. 22, 2024

Abstract Lithium‐ion batteries suffer from severe capacity loss and even fail to work under subzero temperatures, which is mainly due the sluggish Li + transportation in solid electrolyte interphase (SEI) desolvation process. Ethyl acetate (EA) a highly promising solvent for low‐temperature electrolytes, yet it has poor compatibility with graphite (Gr) anode. Here, we tuned interfacial chemistry of EA‐based electrolytes via synergies anions. ODFB − low solvation numbers, participates sheath, significantly reducing energy. Meanwhile, combined high dissociation FSI , reduction both anions constructs an inorganic‐rich SEI improve stability. The enables Gr anode deliver 293 mA h g −1 2.5 Ah LiFePO 4 ||Gr pouch cell exhibit 96.85% retention at −20°C. Remarkably, designed can still retain 66.28% its room‐temperature −40°C.

Language: Английский

Citations